Definitions of Supplemental Managed Objects
                                for ATM Management
          
                                  November 1995                           |
          
          
          
                                Faye Ly  (editor)
                         BayNetworks Communications, Inc.
                               faye@Baynetworks.COM
          
          
                              Michael Noto (editor)
                           Bell Communications Research
                               noto@cc.bellcore.com
          
          
                              Andrew Smith  (editor)
                         BayNetworks Communications, Inc.
                              asmith@Baynetworks.COM
          
          
                               Kaj Tesink  (editor)
                           Bell Communications Research
                               kaj@cc.bellcore.com
          
          
          
                         <draft-ietf-atommib-atm2-04.txt>
          
          
          1.  Status of this Memo
          
          This document is an Internet Draft.  Internet Drafts are
          working documents of the Internet Engineering Task Force
          (IETF), its Areas, and its Working Groups.  Note that other
          groups may also distribute working documents as Internet
          Drafts.
          
          Internet Drafts are valid for a maximum of six months and may
          be updated, replaced, or obsoleted by other documents at any
          time.  It is inappropriate to use Internet Drafts as reference
          material or to cite them other than as a "work in progress".
          
          
          
          
          
          
          
          
          
          
          
          
          
          draft        Supplemental ATM Management Objects November 1995
          
          
          2.  Introduction
          
          This memo defines an experimental portion of the Management
          Information Base (MIB) for use with network management
          protocols in the Internet community.  In particular, it
          describes objects used for managing ATM-based interfaces,
          devices, networks and services in addition to those defined in
          the ATM MIB [1], to provide additional support for the
          management of:
               - ATM Switched Virtual Connections (SVCs)
               - ATM Permanent Virtual Connections (PVCs)
          
          
          This memo specifies a MIB module in a manner that is both
          compliant to the SNMPv2 SMI, and semantically identical to the
          peer SNMPv1 definitions.
          
          This memo does not specify a standard for the Internet
          community.
          
          
          3.  The SNMPv2 Network Management Framework
          
          The SNMPv2 Network Management Framework consists of four major
          components.  They are:
          
          0    RFC 1442 [2] which defines the SMI, the mechanisms used
               for describing and naming objects for the purpose of
               management.
          
          0    STD 17, RFC 1213 [3] defines MIB-II, the core set of
               managed objects for the Internet suite of protocols.
          
          0    RFC 1445 [4] which defines the administrative and other
               architectural aspects of the framework.
          
          0    RFC 1448 [5] which defines the protocol used for network
               access to managed objects.
          
          The Framework permits new objects to be defined for the
          purpose of experimentation and evaluation.
          
          
          
          
          
          
          
          
          
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          4.  Object Definitions
          
          Managed objects are accessed via a virtual information store,
          termed the Management Information Base or MIB.  Objects in the
          MIB are defined using the subset of Abstract Syntax Notation
          One (ASN.1) defined in the SMI.  In particular, each object
          type is named by an OBJECT IDENTIFIER, an administratively
          assigned name.  The object type together with an object
          instance serves to uniquely identify a specific instantiation
          of the object.  For human convenience, we often use a textual
          string, termed the descriptor, to also refer to the object
          type.
          
          
          5.  Overview
          
          The purpose of this memo is to provide additional
          capabilities, not found in the ATM MIB [1], which are needed
          to manage ATM interfaces.  This memo addresses the following
          areas:
               - ATM Switch/Service/Host Support
               - ATM Switch/Service Support
               - ATM Host Support
               - ATM Testing Support
          
          
          
          5.1.  Background
          
          In addition to the MIB module defined in this memo, other MIB
          modules are necessary to manage ATM interfaces, links and
          cross-connects.  Examples include MIB II for general system
          and interface management (RFC 1213 and RFC 1573), the DS3 or
          SONET MIBs for management of SONET and DS3 physical
          interfaces, and, as appropriate, MIB modules for applications
          that make use of ATM, such as SMDS [15] and LAN Emulation
          [14].  These MIB modules are outside the scope of this
          specification.
          
          This MIB module also requires the use of the ATM MIB module
          defined in [1].
          
          ATM Endpoint applications such as ATM LAN Emulation or
          Classical IP-over-ATM Clients and Servers use ATM to establish
          SVC/PVC connections for exchanging control and data
          
          
          
          
          
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          information. The agents of these ATM applications must provide
          the network manager with information on the SVC/PVCs in use
          and which applications are using them.  The information can be
          made generic so as to apply to all ATM applications.  This
          memo proposes extensions to the ATM MIB [1] in order to
          support this.
          
          The current specification of this supplemental ATM MIB is
          based on SNMPv2 SMI.
          
          5.2.  Supported Functions
          
          The managed ATM objects are arranged into the following
          groups:
          
          I. ATM Switch/Service/Host Support:
                (1) ATM Switch/Service/Host Group
                      atmVclStatTable
                      atmVplStatTable
                      atmVplLogicalPortTable
                (2) ATM Switch/Service/Host SVC Group
                      atmSigTable (partially)
          II. ATM Switch/Service Support:
                (3) ATM Switch/Service Group
                      atmIfAdminAddrTable
                (4) ATM Switch/Service SVC Group
                      atmSvcVpCrossConnectTable
                      atmSvcVcCrossConnectTable
                      atmSigTable (partially)
          III. ATM Host Support:
                (5) ATM Host Group
                      atmVclAddrBindTable
                      atmAddrVclTable
                (6) ATM Host Signalling Group
                      atmSigDescrParamTable
          IV. ATM Support:
                (7) ATM Miscellaneous Group
                      atmVplGenTable
                      atmVclGenTable
          V. ATM Testing Support:
                (8) ATM Loopback Testing Group
                      atmLoopbackTestTypes
          
          
          
          
          
          
          
          
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          5.2.1.  ATM Switch/Service/Host Support
          
          5.2.1.1.  ATM Switch/Service/Host Group
          
          5.2.1.1.1.  ATM VCL Statistics Table
          
          The atmVclStatTable contains counters such as the cells
          received and cells transmitted per VCL (SVC or PVC). These
          counters are defined as 32 bit integers.  Systems supporting
          VCC counters must implement these counters.
          
          5.2.1.1.2.  ATM VPL Statistics Table
          
          The atmVplStatTable contains counters such as the cells
          received and cells transmitted per VPL (SVC or PVC). These
          counters are defined as 32 bit integers.  Systems supporting
          VPC counters must implement these counters.
          
          5.2.1.1.3.  ATM Logical Port Interface
          
          The interface type "ATM Logical Port" is defined to allow the
          representation of a VP Tunnel, which is a VPL used as a trunk
          connection (most likely between devices that are not
          physically adjacent), providing for multiplexing and
          demultiplexing of VCs on the VP.  Figure 1 illustrates such a
          VP Tunnel.
          
          Note: the "ATM Logical Port" interface is more of a logical
          port, compared with an interface of type "ATM" which is more
          of a physical port that provides for the transport of many VP
          and VC connections between adjacent devices.
          
                               <------VP Tunnel------>
                         ATM Switch A             ATM Switch B
                        ------------             -----------
                        |ATM       |_____________|ATM       |
                        |X-Connect |      .      |X-Connect |
                 VCL1   |Point     | VPL1 . VPL2 |Point     |  VCL4
              O---------|----X-----|----- . -----|----X-----|-----O
                        |    X-----|----- . -----|----X     |
                        |    |     |_____________|    |     |
                        ------------             ------------
                             | VCL2                   | VCL3
                             O                        O
          
          
          
          
          
          
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                           Figure 1: Virtual Path Tunnel
          
          
          In Figure 1, a VP tunnel (denoted as VPL1 by Switch A, and as
          VPL2 by Switch B) is used to connect VCL1 with VCL4 and VCL2
          with VCL3. Figure 1 shows only one VP tunnel, but there can be
          multiple VP tunnels over the same physical interface.
          
          A particularly useful VP tunnel scenario is tunneling across a
          public network that does not support signalling. In Figure 1
          above, assume Switches A and B are private switches that
          signal over the VP to set up connections transparently through
          the public network. The public network would just transport a
          PVC VP between the two switches.
          
          Because the VP Tunnel constitutes an interface between two ATM
          devices that are not necessarily physically adjacent, most of
          the management information pertaining to the interface may
          differ for the tunnel, including:
                  - active VPI/VCI fields (the tunnel may be a subset
                    of the parent interface).
                  - maximum number of VCCs
                  - configured VCCs
                  - ILMI VPI/VCI values
                  - ATM address type
                  - ATM administrative address
                  - received/transmitted cells.
          
          
          For details on how to use the ATM Logical Port interface and
          the ATM Logical Port Table see Section 5.2.1.1.3.1 below.
          
          
          5.2.1.1.3.1.  ATM Logical Port Interface Table
          
          The ATM Logical Port Interface Table is used only by devices
          supporting VP tunnels. To create an Atm Logical Port interface
          via SNMP:
                  - Create a VPL (e.g., VPI=a on an existing interface
                    which has ifIndex=x).
          
                  - Set the augmenting object atmVplLogicalPortDef
                    with value isLogicalIf.  A new row in the
                    ifTable is then created, with ifIndex=y, to
                    represent the ATM Logical Port interface (e.g.,
          
          
          
          
          
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                    VPL tunnel). Then set the augmenting object
                    atmVplLogicalPortIndex = y to represent the
                    ifIndex value of the ATM Logical Port interface.
          
                  - The ifEntry values are set for the ATM Logical
                    Port interface (ifIndex=y) as discussed in RFC
                    1695, with the following exceptions:
                          * ifType - a new enumerated value added to
                            IANAifType, specifying an "ATM Logical
                            Port" interface.
                          * ifSpeed - The total bandwidth in bits per
                            second for use by the ATM layer. Computed
                            from the traffic descriptor for the VPL.
                          * ifOperStatus - determined hierarchically,
                            depending on the state of the physical
                            atm-cell layer interface beneath it,
                            and the ILMI on the VP.
                          * ifInOctets, ifOutOctets - support of
                            these objects is not mandatory for ATM
                            Logical Port interfaces.
                          * ifInErrors - always zero, HEC errors are
                            specified for the atm cell-layer interface
                            beneath it.
                          * ifInUnknownProtos - always zero, errors
                            are specified for the atm cell-layer
                            interface beneath it.
          
                  - The atmInterfaceConfEntry values are set as
                    discussed in RFC 1695, with the following
                    exceptions:
                          * atmInterfaceMaxVpcs - 0.
                          * atmInterfaceConfVpcs - 0.
                          * atmInterfaceIlmiVpi - VPI of the VP
                            tunnel.
          
                  - An entry is created in the ifStackTable, with
                    values: ifStackHigherLayer=y, ifStackLowerLayer=x.
          
                  - VCLs defined on the VP tunnel are indexed by
                    ifIndex=y,VPI=a,VCI.
          
          
          
          
          
          
          
          
          
          
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          5.2.1.2.  ATM Switch/Service/Host SVC Group
          
          All objects in this Group are listed in the atmSigTable. This
          table also contains objects of the ATM Switch/Service SVC
          Group.
          
          5.2.1.2.1.  ATM Interface Signalling Configuration
          
          This group contains information on the configuration of local
          ATM interfaces on an ATM device required to support SVCs in
          addition to those defined in the atmInterfaceConfTable of the
          ATM MIB [1] and those defined in RFC1573 [6].  This group
          includes the signalling entity role, signalling suite, and
          signalling type.  The signalling entity role object defines
          whether a signalling entity has the role of user, network, or
          a symmetric entity.
          
          The signalling suite determines which ATM protocol suite is
          being used for signalling:  dss2, atmf, and bici.  In addition
          to the protocol suite, the signalling type defines the type of
          signalling supported at the local ATM interface (e.g., ITU-T
          DSS2 signalling).  The signalling types supported by this MIB
          include: ITU-T DSS2 [11, 17, 18], ATM Forum's UNI 3.0 [9], ATM
          Forum's UNI 3.1 [10], ATM Forum's UNI 4.0 [16], ATM Forum's
          IISP [19], ATM Forum's P-NNI [12], and ATM Forum's B-ICI [20].
          
          5.2.1.2.2.  SSCOP
          
          This group contains information on the ATM SSCOP signalling
          layer and must be supported by signalling entities.
          
          5.2.1.2.3.  Unsupported Service Failures
          
          This group contains information on the setup failures that
          occur when setting up an ATM SVC.  Maintaining counters for
          each individual signalling cause codes would result in a large
          number of counters.  Instead, this memo uses an approach that
          lumps events into three categories.  Three counters are used
          to monitor connection failures occurring due to: 1)
          unavailable route, 2)  unavailable switch or network
          resources, or 3) the called party.  The counters are defined
          as follows:
          
                  1. Route Unavailable Counter
          
          
          
          
          
          
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                     This counter maintains the number of
                     calls cleared because there was no
                     route unavailable to the destination.
          
                  2. Resources Unavailable Counter
          
                     This counter maintains the number of cleared
                     calls due to switch or network resources being
                     unavailable.
          
                  3. Called Party Counter
          
                     This counter maintains the number of cleared
                     calls caused by the called party (e.g.,
                     called party rejects the call).
          
          
          5.2.1.2.4.  ATM Signalling Layer Protocol Errors
          
          This group contains information on the Protocol Errors that
          occur at the signalling layer when establishing an ATM SVC.
          
          5.2.1.2.5.  UNI Signalling Sub-layer Statistics
          
          Configuration information is needed per signalling entity in
          order to manage attributes of all SVCs set up by that entity.
          Since signalling entities are not always bound one to one to
          ATM UNIs, a more flexible indexing mechanism would be to allow
          multiple signalling entities on a single UNI or vice versa -
          using ifIndex and VPI would provide sufficient flexibility
          here.
          
          Statistics per VCL are needed in order to find out the usage
          of VCL resources by ATM applications.  Additionally, to
          monitor the usage and health of a UNI signalling entity, some
          counters are needed per UNI signalling entity.  Two new
          objects are added to count the number of connections
          established.  One for incoming SVCs and one for outgoing SVCs.
          
          5.2.1.2.6.  Indexing of the ATM Signalling Table
          
          The atmSigTable (formerly the atmSvcTable) is indexed only by
          the ifIndex, which can either be of type ATM or type ATM
          Logical Port.  The procedures for using an ifIndex of type ATM
          are described in RFC1695.  Procedures for using an ifIndex of
          
          
          
          
          
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          type "ATM Logical Port" are described below.  For a
          description of the ATM Logical Port Interface and the use of
          the ATM Logical Port Interface Table please refer to Section
          5.2.1.1.3 "ATM Logical Port Interface".
          
          The "ATM Logical Port" interface type is used to represent the
          interface of a VP tunnel, and each such interface may have
          zero or one Signalling VCLs.  For a switch, this would include
          external and internal (virtual proprietary) interfaces. If
          such an interface has a signalling VCL, the atmSigTable row
          associated with that VCL is indexed by the interface ifIndex.
          
          
          The Figure 2 illustrates the association of ATM Signalling
          Table rows, assuming all external ports, VP tunnels, and the
          switch itself signal for SVC setup:
          
                           ____________________________
                           | Switch                   |
                           |     ==============       |
                           |     | AAL5       |       |
                           |     |Applications|       |
                           |     ==============       |
                           |     |    AAL5    |       |
                           |     |   Entity   |       |
                           |     ==============       |
                           |           |              |
                           |         -----Prop. Virtual Interface.
                           |           |     1 row(atmSigEntry)
                           |     ==============       |
                           |     |   ATM      |       |
                           |     |  Entity    |       |
                           |     ==============       |
                           |_____|__|__|__|__|________|
                                 |  |  |  |  |
                                ---------------- ATM UNI/NNIs
                                 |  |  |  |  |
                                 |  |  |  |  | 1 row(atmSigEntry) per
                                 v  v  v  v  v  UNI/NNI/VP tunnel
          
                  Figure 2: Model of an ATM Switch Illustrating
                            Association of the ATM Signalling Table
          
          
          
          
          
          
          
          
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          Figure 3 illustrates the Signalling channels and their
          associated interfaces for a switch. The cross-connecting of
          the Signalling channels is done to allow the reading of AAL5
          errors.
          
          
          
          
                                       ATM Switch
                     -------------------------------------------
                     |        o VCL4     o VCL5       o VCL6   |
                     |        |          |            |        |
                     |  -------------------------------------  |
                     |  | AAL5 Interface                IF5 |  |
                     |  |-----------------------------------|  |
                     |  | Proprietary Virtual Interface IF4 |  |
                     |  -------------------------------------  |
                     |        |          |            |        |
                     |--+     |          |            |     +--|
              VPI=0  |  |     |          |            |     |  |VPI=0
              VCL1   |  |     |          |            |     |  |VCL3
           o---------|--|-----X          |            X-----|--|-----o
           **********|**|**+             |                  |  |
              VPI=44 |  |  | IF2         |                  |  |
              VCL2   |  |  |             |                  |  |
           o---------|--|----------------X                  |  |
                     |  |  |                                |  |
           **********|**|**+                                |  |
                     |  |                                   |  |
                     |  | IF1                           IF3 |  |
                     |--+                                   +--|
                     |                                         |
                     -------------------------------------------
                                            X = ATM Cross-Connect
          
                 Figure 3: Model of ATM Switch's Signalling Channels
                           and Associated Interfaces
          
          
          
          
          In Figure 3 there are two physical interfaces, with ATM-layers
          depicted as IF1 and IF3. IF2 is the "ATM Logical Port"
          interface provided by the VP tunnel with VPI=44 on the
          physical interface. IF4 and IF5 are the ATM and AAL5
          
          
          
          
          
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          (respectively) internal sub-layer interfaces for VCLs
          terminating at the switch. It is assumed in this example that
          the ifIndex value for IF1 is 1, IF2 is 2, etc.
          
          In the case depicted:
          
              - On IF1, the VCL1 Signalling channel can be used to set
                up connections over the interface address space with
                the exception of the VP with VPI=44. An entry exists
                in the atmVplTable with index ifIndex=1,atmVplVpi=44,
                and in the augmenting atmVplLogIfConfTable,
                atmVplLogIfDef=isLogicalIf(2), atmVplLogIfIndex=2.
          
              - On IF2, the VCL2 Signalling channel can set up VCs
                over the ATM Logical Port interface's address space
                (VPI=44, VCI range dictated by configuration).
          
              - On IF3, the VCL3 Signalling channel can be used to set
                up VCs over the entire interface address space.
          
          
          The only VCLs depicted in the Figure 3 are those used for
          Signalling. External interface VCLs are cross-connected to
          VCLs at the proprietary interface. The indices for the VCLs
          are:
                  ifIndex, atmVclVpi, atmVclVci
                  =============================
          VCL1       1         0          5
          VCL2       2        44          5
          VCL3       3         0          5
          VCL4       4         p1         c1
          VCL5       4         p2         c2
          VCL6       4         p3         c3
          
          
          The p(i) and c(j) values for VPI/VCI on the VCLs on the
          proprietary interface indicate that these values are chosen by
          the switch software (versus the values dictated on the
          external interfaces).
          
          The atmSigTable is indexed only by ifIndex. Rows would
          certainly exist in the table for IF1, IF2, and IF3. The
          information in these rows would pertain to the Signalling
          protocols operating over VCL1, VCL2, and VCL3.
          
          
          
          
          
          
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          If the switch itself can originate and/or terminate SVCs,
          another row would exist for IF4. Assuming that the interface
          that the applications on a switch use to establish SVCs is a
          virtual interface, the IF4 row would be a degenerate row, in
          that some of the columns would apply and others may not:
          
            Applicable:
              atmSigType
              atmSigUnavailRoutes
              atmSigUnavailResrcs
              atmSigSigInEstabls
              atmSigSigOutEstabls
              atmSigSupportClgPtyNumDel
              atmSigSupportClgPtySubAddr
              atmSigSupportCldPtySubAddr
              atmSigSupportHiLyrInfo
              atmSigSupportLoLyrInfo
              atmSigSupportRepeatInd
              atmSigSupportAALInfo
              atmSigSupportPrefCarrier
          
            Inapplicable:
              atmSigSSCOPConEvents
              atmSigSSCOPErrdPdus
              atmSigSigMsgErrors
              atmSigSigRestarts
          
            Maybe:
              atmSigSigEntityRole
              atmSigCldPrtyProblems
              atmSigSigTimerExpireds.
          
          
          
          5.2.2.  ATM Switch/Service Support
          
          5.2.2.1.  ATM Switch/Service Group
          
          5.2.2.1.1.  ATM Interface Administrative Address Table
          
          This group is only supported by switches or networks for
          interfaces that have multiple associated addresses.  This
          group contains an ATM Interface Administrative Address Table
          (atmIfAdminAddrTable) which lists valid addresses for calls to
          and from a given interface.  One of these numbers shall be
          
          
          
          
          
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          specified as the "default" number.
          
          5.2.2.2.  ATM Switch/Service SVC Group
          
          All objects in this Group are listed in the atmSigTable. This
          table also contains objects of the ATM Switch/Service/Host SVC
          Group.
          
          5.2.2.2.1.  ATM UNI SVC Information Element Support
          
          A number of Information Elements may or may not be supported
          by ATM switches or ATM Service. Hence, for trouble isolation
          it is important to keep track which particular Information
          Elements are supported.  The corresponding group of objects
          must be supported by switches or networks supporting SVCs, and
          indicate whether the following Information Elements are
          enabled/disabled:
          
          1)   Calling party number
          
          2)   Calling party subaddress
          
          3)   Called party subaddress
          
          4)   Broadband high layer information
          
          5)   Broadband low layer information
          
          6)   Broadband repeat indicator
          
          7)   AAL parameters
          
          The last parameter, Preferred Carrier Pre-Subscription,
          identifies the carrier to which intercarrier calls originated
          from this interface are routed when transit network selection
          information is not provided by the calling party.
          
          5.2.3.  ATM Host Support
          
          5.2.3.1.  ATM Host Group
          
          5.2.3.1.1.  VCL Extension Table
          
          There can be two types of VCLs used by ATM applications: a
          Permanent VC or a Switched VC.  The ATM MIB [1] provides
          
          
          
          
          
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          general connection management (atmVclTable).  This memo
          contains the atmVclExtTable, an extension to the atmVclTable,
          which supports both SVC/PVC monitoring and SVC configuration
          capabilities.
          
          The object Connection Type specifies the type of the VCL as
          either a PVC, an incoming SVC, or an outgoing SVC.  When
          creating an SVC, the agent can represent the VCL's attributes
          by selecting entries from two tables: the ATM Traffic
          Descriptor Parameter Table defined in the ATM MIB [1] and the
          ATM Signalling Descriptor Parameter Table defined in this
          memo.  For SVCs, the ATM VCL Signalling Descriptor Index
          object is used to point to an entry in the ATM Signalling
          Descriptor Parameter Table.
          
          5.2.3.1.2.  ATM VPI/VCI to Address Mapping Table
          
          In the atmVclAddressTable, the objects ATM Local Address
          (atmLocalAddr) and ATM Remote Address (atmRemoteAddr)
          represent the two endpoint addresses of a VCL.  ATM Local
          Address identifies the local endpoint of the VCL represented
          by this agent.  While, the ATM Remote address represents the
          address of the ATM application at the other end of the VCL.
          The atmLocalAddrIndex allows an agent to uniquely identify a
          single entry under a given Local ATM Address, esp. when there
          are multiple VCLs.  The atmRemoteAddrIndex is used in a
          similar manner.
          
          5.2.3.1.3.  ATM Address to VPI/VCI Mapping Table
          
          Some ATM applications (e.g. LAN Emulation) use ATM endpoint
          addresses even over PVCs.  In order to trace SVC/PVCs between
          such ATM applications, it is important to be able to monitor
          VCLs (both SVCs and PVCs) indexed by their endpoint ATM
          addresses.  The atmAddrVclTable contains all VCCs currently
          active and is indexed by the remote ATM address. It is the
          reverse of the atmVclAddressTable.
          
          5.2.3.2.  ATM Host SVC Group
          
          5.2.3.2.1.  Signalling Descriptor Parameter Table
          
          This table extends the ATM VCL table of the ATM MIB [1] to
          include all other necessary signalling information as
          specified in both ATM Forum UNI Specifications [9] and [10].
          
          
          
          
          
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          A user can create an entry with all signalling parameters and
          later use that entry to specify the signalling characteristics
          of SVCs.
          
          Signalling attributes can be grouped into following
          categories:
          
          1)   ATM Adaptation Layer Parameters
          
          Information in this group are captured in the ATM Signalling
          Descriptor Parameter Table defined in this memo.  Please refer
          to section 5.4.5.5 of [9] and [10].
          
          2)   Broadband Bearer Capability
          
          Information in this group are captured by the ATM Signalling
          Descriptor Parameter Table defined in this memo.  Please refer
          to section 5.4.5.7 of [9] and [10].
          
          3)   Broadband High Layer Information
          
          Information in this group are captured by the ATM Signalling
          Descriptor Parameter Table defined in this memo.  Please refer
          to section 5.4.5.8 of [9] and [10].
          
          4)   Broadband Low Layer Information
          
          Information in this group are captured by the ATM Signalling
          Descriptor Parameter Table defined in this memo.  Please refer
          to section 5.4.5.9 of [9] and [10].
          
          5.2.4.  ATM Testing Support
          
          5.2.4.1.  ATM Loopback Testing Group
          
          The loopback test provides the ability to send out a loopback
          OAM cell to verify the existence of connectivity for a
          particular connection.  Loopback tests can be performed on
          either an entire connection (i.e., an end-to-end test), a
          segment of the connection (i.e., a segment test), a portion of
          a segment (i.e., a loopback location identifier test), or the
          network portion of a connection (i.e., a service internal
          test).
          
          
          
          
          
          
          
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          The loopback test makes use of the Interface Test Table
          defined in RFC 1573.  For a given interface, a loopback test
          can be invoked by obtaining ownership of a test and then by
          setting the value of 'ifTestType' equal to one of the ATM
          Loopback Test Types defined in Section (8). See procedures in
          RFC 1573 for using the Interface Test Table.  After invoking a
          loopback test, the object 'ifTestResult' can be read to
          determine the outcome of the loopback test (e.g., success(2)
          if the loopback cell made it back to the originator of the
          test or failed(7) if the loopback cell did not make it back).
          
          This group contains the following types of loopback tests:
          
               - End-to-end Loopback Test
               - Segment Loopback Test
               - Loopback Test Using Loopback Location Identifier
               - Network Loopback Test.
          
          
          1) End-to-end Loopback Test
          
          The end-to-end loopback (LB) is self-explanatory.  For a VP
          test, the cell is sent on the given VP, via VCI=4 specified in
          [10].  For a VC test, the LB cell is sent on the VC under
          test, with the PTI (Payload Type Indicator) set to 5 as
          specified in [10].  Figure 4 illustrates the end-to-end
          loopback test.
          
            ____      _______      _______      _______      ____
           |Host|    |       |    |       |    |       |    |Host|
           |____|----|SwitchA|----|SwitchB|----|SwitchC|----|____|
                     |_______|    |_______|    |_______|
          
              |<--------------------------------------------->|  Test
                                                                 Path
          
                     Figure 4: End-to-end Loopback Test
          
          
          See Section (8) for more details on how to use the End-to-end
          Loopback Test.
          
          
          2) Segment Loopback Test
          
          
          
          
          
          
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          The segment LB test is explained in ITU-T I.610[21]. For a VP
          segment test, the LB cell is sent on the VP under test via
          VCI=3 as specified in [10], and the Loopback Location ID field
          is set to all 1's.  For a VC segment test, the LB cell is sent
          on the VC under test, with the PTI set to 4 as specified in
          [10], and the Loopback Location ID field is set to all 1's.
          
          This test involves a LB cell being inserted at a pre-defined
          segment end-point, and looped back at the corresponding
          segment end-point encountered.  The pair of segment end-points
          define a segment (which is used for the segment loopback
          test).  A VP/VC connection can have multiple segments, but
          multiple segments cannot overlap.
          
          A UNI interface is by definition defined as a segment end-
          point (hence a UNI would be considered a segment).  A segment
          can also define:
               - a B-ICI
               - a public carrier's 'piece' of the connection
               - a private network's 'piece' of the connection.
          
          
          In order to support this functionality, the VP/VC link
          termination needs to be able to be defined as a segment.  This
          can be done using either the atmVplSegmentEndPoint or
          atmVclSegmentEndPoint object depending on whether it is for a
          VPC or VCC.  A segment loopback test is illustrated in Figure
          5.
          
            ____      _______      _______      _______      ____
           |Host|    |       |    |       |    |       |    |Host|
           |____|----|SwitchA|----|SwitchB|----|SwitchC|----|____|
                     |_______|    |_______|    |_______|
          
                         |<----------------------->|  Segment
          
                       Figure 5: Segment Loopback Test
          
          Section (8) describes the use of the ATM Segment Loopback
          Tests.
          
          
          3) Loopback Test Using Loopback Location Identifier
          
          
          
          
          
          
          
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          This loopback test is a special type of 2) where the Loopback
          Location ID field is set to a value that corresponds to a
          specific node in a given network (Note that the format of this
          field is not standardized, that is, the value is significant
          only within an administrative domain).  In this case, the
          device initiating the LB test inserts the appropriate Loop
          Back Location ID.  When the LB cell reaches the corresponding
          device, that device recognizes the Loopback Location ID as its
          own, and loops it back.  This test is useful for performing
          fault sectionalization without having to provision segment
          end-points.  An additional object, the loopbackLocationID, is
          defined to determine the loopback point.  Figure 6 shows a
          loopback test using a location identifier. Note that the
          loopback test using location identifier can be used to perform
          a loopback test over a portion of a defined segment.  See
          Figure 6.
          
            ____      _______      _______      _______      ____
           |Host|    |       |    |       |    |       |    |Host|
           |____|----|SwitchA|----|SwitchB|----|SwitchC|----|____|
                     |_______|    |_______|    |_______|
          
                         |<---------->| Portion of Segment that
                                         Loopback test is
                                         performed on
          
                         |<----------------------->|  Segment
          
              Figure 6: Loopback Test Using Location Identifier
          
          See Section (8) for more details.
          
          
          4) Network Loopback Test
          
          This is a loopback test that the manager requests an agent in
          a network to perform over the internal portion of a designated
          connection.  The Network then initiates the internal network
          loopback test by inserting an OAM loopback cell at one of the
          end-points of the internal network portion of the connection.
          When the loopback cell reaches the other end-point of the
          internal Network , the cell is looped back.  This test is
          useful for verifying connectivity through a particular
          network.  Figure 7 illustrates the Network loopback test.
          
          
          
          
          
          
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            ____      _______      _______      _______      ____
           |Host|    |Netwk 1|    |Netwk 1|    |Netwk 1|    |Host|
           |____|----|SwitchA|----|SwitchB|----|SwitchC|----|____|
                     |_______|    |_______|    |_______|
          
                         |<----------------------->| LB Test Path
                                                      thru Network 1
          
                       Figure 7: Network Loopback Test
          
          See Section (8) for more details.
          
          
          
          6.  Valid Address Sets / Default Address
          
          A given ATM UNI interface may have an Address,
          "ifPhysAddress", to identify the interface.  In addition, a
          given ATM UNI  interface may have several other valid
          addresses which can be used to originate and receive calls.
          The valid addresses that are used to receive calls are listed
          in the "ifRcvAddrTable" defined in RFC1573 [6].  ATM
          interfaces of switches and networks do not use the
          ifRcvAddrTable.  Valid addresses to be used by a switch or
          network are listed in the ATM Interface Administrative Address
          Table.  The ATM Interface Administrative Address Table is not
          supported by hosts.
          
          
          7.  Configuration of VPLs, VCLs, and Cross-Connects
          
          The ATM Managed Objects needed to support the configuration of
          VPLs, VCLs, and Cross-Connects are defined in the ATM MIB [1].
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          8.  Definitions
          
               ATM2-MIB DEFINITIONS ::= BEGIN
          
               IMPORTS
                  MODULE-IDENTITY, OBJECT-TYPE, OBJECT-IDENTITY,
                  experimental, Counter32, Integer32
                      FROM SNMPv2-SMI
                  TEXTUAL-CONVENTION,                                     |
                  RowStatus, TimeStamp
                      FROM SNMPv2-TC
                  MODULE-COMPLIANCE, OBJECT-GROUP
                      FROM SNMPv2-CONF
                  atmMIBObjects, IfIndex, atmVclEntry,
                  atmVclVpi, atmVclVci, atmVplEntry, atmVplVpi
                      FROM ATM-MIB
                  ifIndex
                      FROM RFC1213-MIB;
          
          
               atm2MIB MODULE-IDENTITY
                    LAST-UPDATED "9511211200Z"                            |
                    ORGANIZATION "IETF AToMMIB Working Group"
                    CONTACT-INFO
                      "          Faye Ly
                        Postal:  Bay Networks Inc.
                                 4401 Great America Parkway
                                 Santa Clara, CA 95052
                                 US
                        Tel:     +1 408 764 1702                          |
                        Fax:     +1 408 988 5525
                        E-Mail:  faye@Baynetworks.COM
          
                                 Michael Noto
                        Postal:  Bell Communications Research
                                 331 Newman Springs Road
                                 Red Bank, NJ 07701
                                 US
                        Tel:     +1 908 758 5104
                        Fax:     +1 908 758 4177
                        E-mail:  noto@cc.bellcore.com
          
                                 Andrew Smith
                        Postal:  Bay Networks Inc.
                                 4401 Great America Parkway
          
          
          
          
          
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                                 Santa Clara, CA 95052
                                 US
                        Tel:     +1 408 764 1574
                        Fax:     +1 408 988 5525
                        E-Mail:  asmith@Baynetworks.COM
          
                                 Kaj Tesink
                        Postal:  Bell Communications Research
                                 331 Newman Springs Road
                                 Red Bank, NJ 07701
                                 US
                        Tel:     +1 908 758 5254
                        Fax:     +1 908 758 4177
                        E-mail:  kaj@cc.bellcore.com"
                    DESCRIPTION
                     "This MIB Module is a supplement to the
                     ATM-MIB [1].  This MIB provides
                     supplemental information from both a
                     switch/network perspective and an ATM
                     host/application prospective."
                    ::= { experimental 6/95 }
          
               atm2MIBObjects  OBJECT IDENTIFIER ::= {atm2MIB 1}
          
               -- ********  NOTE TO THE RFC EDITOR  **************
               -- In case this module is put on the standards track
               --  replace the following:
               -- "atm2MIB MODULE-IDENTITY ::= {experimental 6/95}" with
               -- "atm2MIB MODULE-IDENTITY ::= {atmMIBObjects 13}"
               -- and include atmMIBObjects in the IMPORT clause.
          
          
               -- This ATM2-MIB Module consists of the following groups:
               --   ATM Switch/Service/Host Support:
               --      (1) ATM Switch/Service/Host Group
               --            atmVclStatTable
               --            atmVplStatTable
               --            atmVplLogicalPortTable
               --      (2) ATM Switch/Service/Host SVC Group
               --            atmSigTable (partially)
               --   ATM Switch/Service Support:
               --      (3) ATM Switch/Service Group
               --            atmIfAdminAddrTable
               --      (4) ATM Switch/Service SVC Group
               --            atmSvcVpCrossConnectTable
          
          
          
          
          
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               --            atmSvcVcCrossConnectTable
               --            atmSigTable (partially)
               --   ATM Host Support:
               --      (5) ATM Host Group
               --            atmVclAddrBindTable
               --            atmAddrVclTable
               --      (6) ATM Host Signalling Group
               --            atmSigDescrParamTable
               --   ATM Support:
               --      (7) ATM Miscellaneous Group
               --            atmVplGenTable
               --            atmVclGenTable
               --   ATM Testing Support:
               --      (8) ATM Loopback Testing Group
               --            atmLoopbackTestTypes
          
          
          
               -- Textual Conventions
          
          
                   InterfaceIndex ::= TEXTUAL-CONVENTION
                       STATUS  current
                       DESCRIPTION
                           "The value of this object identifies the
                           atmLogicalPort interface for which the entry
                           contains management information. The value of
                           this object for a particular interface has
                           the same value as the ifIndex object, defined
                           in RFC 1213 [2], for the same atmLogicalPort
                           interface."
                      SYNTAX  Integer32
          
          
                  AtmAddr ::= TEXTUAL-CONVENTION
                      STATUS  current
                      DESCRIPTION
                          "The ATM address used by the network entity.
                          The address types are: no address (0 octets),
                          E.164 (8 octets), network prefix (13 octets),
                          and NSAP (20 octets).  Note: The E.164 address
                          is encoded in BCD format."
                     SYNTAX    OCTET STRING (SIZE(0|8|13|20))
          
          
          
          
          
          
          
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                 AtmSigDescrParamIndex ::= TEXTUAL-CONVENTION
                     STATUS  current
                     DESCRIPTION
                         "The value of this object identifies a row in
                         the atmSigDescrParamTable. "
                    SYNTAX  Integer32
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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            -- ****************************************************
            -- (1) ATM Switch/Service/Host Group
          
            -- This group contains information for a Switch/Service/Host
            -- that implements ATM interfaces.  This group contains
            -- the following tables:
            -- 1. ATM VCL Statistics Table
            -- 2. ATM VPL Statistics Table
            -- 3. ATM Logical Port Configuration Table
          
            atmSwtchServcHostGroup OBJECT IDENTIFIER ::= {
                                               atm2MIBObjects 1}
          
            -- 1. ATM VCL Statistics Table
          
                atmVclStatTable   OBJECT-TYPE
                    SYNTAX        SEQUENCE OF AtmVclStatEntry
                    MAX-ACCESS    not-accessible
                    STATUS        current
                    DESCRIPTION
                        "This table contains all statistic counters per
                        VCL.  It is used to monitor the usage of the VCL
                        in terms of incoming cells and outgoing cells."
                   ::= { atmSwtchServcHostGroup 1 }
          
               atmVclStatEntry    OBJECT-TYPE
                   SYNTAX         AtmVclStatEntry
                   MAX-ACCESS     not-accessible
                   STATUS         current
                   DESCRIPTION
                       "Each entry in this table represents a VCL."
                  INDEX { ifIndex, atmVclVpi, atmVclVci }
                  ::= { atmVclStatTable 1 }
          
              AtmVclStatEntry ::=
                  SEQUENCE {
                      atmVclStatCellIns    Counter32,
                      atmVclStatCellOuts   Counter32
                      }
          
              atmVclStatCellIns OBJECT-TYPE
                  SYNTAX        Counter32
                  MAX-ACCESS    read-only
                  STATUS        current
                  DESCRIPTION
          
          
          
          
          
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                      "The number of cells received by this VCL."
                  ::= { atmVclStatEntry 1 }
          
              atmVclStatCellOuts OBJECT-TYPE
                  SYNTAX         Counter32
                  MAX-ACCESS     read-only
                  STATUS         current
                  DESCRIPTION
                      "The number of cells transmitted from this VCL."
                  ::= { atmVclStatEntry 2 }
          
          
          -- 2. ATM VPL Statistics Table
          
              atmVplStatTable   OBJECT-TYPE
                  SYNTAX        SEQUENCE OF AtmVplStatEntry
                  MAX-ACCESS    not-accessible
                  STATUS        current
                  DESCRIPTION
                      "This table contains all statistic counters per
                      VPL.  It is used to monitor the usage of the VPL
                      in terms of incoming cells and outgoing cells."
                  ::= { atmSwtchServcHostGroup 2 }
          
              atmVplStatEntry    OBJECT-TYPE
                  SYNTAX         AtmVplStatEntry
                  MAX-ACCESS     not-accessible
                  STATUS         current
                  DESCRIPTION
                      "Each entry in this table represents a VPL."
                  INDEX { ifIndex, atmVplVpi }
                  ::= { atmVplStatTable 1 }
          
              AtmVplStatEntry ::=
                  SEQUENCE {
                      atmVplStatCellIns    Counter32,
                      atmVplStatCellOuts   Counter32
                      }
          
              atmVplStatCellIns OBJECT-TYPE
                  SYNTAX        Counter32
                  MAX-ACCESS    read-only
                  STATUS        current
                  DESCRIPTION
                      "The number of cells received by this VPL."
          
          
          
          
          
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                  ::= { atmVplStatEntry 1 }
          
              atmVplStatCellOuts OBJECT-TYPE
                  SYNTAX         Counter32
                  MAX-ACCESS     read-only
                  STATUS         current
                  DESCRIPTION
                      "The number of cells transmitted from this VPL."
                  ::= { atmVplStatEntry 2 }
          
          
          -- 3. ATM Logical Port Configuration Table
          
          
              atmVplLogicalPortTable OBJECT-TYPE
                  SYNTAX           SEQUENCE OF AtmVplLogicalPortEntry
                  MAX-ACCESS       not-accessible
                  STATUS           current
                  DESCRIPTION
                      "Indicates whether the VPL is an ATM Logical Port
                      interface."
                  ::= { atmSwtchServcHostGroup 3 }
          
          
              atmVplLogicalPortEntry OBJECT-TYPE
                  SYNTAX  AtmVplLogicalPortEntry
                  MAX-ACCESS  not-accessible
                  STATUS  current
                  DESCRIPTION
                      "An entry with information about the Atm Logical
                      Port interface."
                  AUGMENTS { atmVplEntry }
                  ::= { atmVplLogicalPortTable 1 }
          
          
              AtmVplLogicalPortEntry ::=
                  SEQUENCE {
                      atmVplLogicalPortDef         INTEGER,
                      atmVplLogicalPortIndex       InterfaceIndex
                      }
          
          
              atmVplLogicalPortDef   OBJECT-TYPE
                  SYNTAX  INTEGER {
                                  notLogicalIf(1),
          
          
          
          
          
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                                  isLogicalIf(2)
                                  }
                  MAX-ACCESS  read-create
                  STATUS  current
                  DESCRIPTION
                      "Indicates whether the VPC at this VPL interface
                      is an Atm Logical Port interface."
                  DEFVAL { notLogicalIf }
                  ::= { atmVplLogicalPortEntry 1 }
          
          
              atmVplLogicalPortIndex OBJECT-TYPE
                  SYNTAX  InterfaceIndex
                  MAX-ACCESS  read-only
                  STATUS  current
                  DESCRIPTION
                      "The ifTable index of the Atm logical port          |
                      interface associated with this VPL. Only valid if
                      the value of atmVplLogicalPortDef is isLogicalIf,
                      and the VPL row is active."
                  ::= { atmVplLogicalPortEntry 2 }
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          -- ****************************************************
          -- (2) ATM Switch/Service/Host SVC Group
          
          -- This group contains information for a Switch/Service/Host
          -- that implements ATM interfaces supporting Switched
          -- Virtual Connections (SVCs).
          -- This group consists of the following
          -- table:
          -- 1. ATM Interface Signalling Configuration Table
          --    (beginning portion only)
          
          -- Since the ATM Interface Signalling Configuration Table
          -- was designed to contain signalling information
          -- the remaining portion of this table contains information
          -- from "(4) ATM Switch/Service SVC Group".
          -- The ATM Switch/Service SVC Group contains information for
          -- a Switch/Service that implements ATM interfaces
          -- supporting Switched Virtual Connections (SVCs).
          
          
          atmSwtchServcHostSVCGroup OBJECT IDENTIFIER::= {
                                             atm2MIBObjects 2}
          
          -- 1. ATM Interface Signalling Configuration Table
          -- This table provides configuration information for
          -- ATM Switched Virtual Connections (SVCs).
          
          atmSigTable       OBJECT-TYPE
               SYNTAX       SEQUENCE OF AtmSigEntry
               MAX-ACCESS   not-accessible
               STATUS       current
               DESCRIPTION
                "This table contains ATM local interface
                 configuration parameters, one entry per ATM
                 signalling interface."
               ::= { atmSwtchServcHostSVCGroup 1 }
          
          atmSigEntry         OBJECT-TYPE
               SYNTAX         AtmSigEntry
               MAX-ACCESS     not-accessible
               STATUS         current
               DESCRIPTION
                "This list contains signalling configuration
                 parameters and state variables."
               INDEX { ifIndex }
          
          
          
          
          
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               ::= { atmSigTable  1}
          
          AtmSigEntry    ::= SEQUENCE  {
          -- ATM Switch/Service/Host SVC Group:
               atmSigEntityRole            INTEGER,
               atmSigSuite                 INTEGER,
               atmSigType                  INTEGER,
               atmSigSSCOPConEvents        Counter32,
               atmSigSSCOPErrdPdus         Counter32,
               atmSigSetupAttempts         Counter32,
               atmSigUnavailRoutes         Counter32,
               atmSigUnavailResrcs         Counter32,
               atmSigCldPrtyProblems       Counter32,
               atmSigMsgErrors             Counter32,
               atmSigTimerExpireds         Counter32,
               atmSigRestarts              Counter32,
               atmSigInEstabls             Counter32,
               atmSigOutEstabls            Counter32,
          -- ATM Switch/Service SVC Group:
               atmSigSupportClgPtyNumDel   INTEGER,
               atmSigSupportClgPtySubAddr  INTEGER,
               atmSigSupportCldPtySubAddr  INTEGER,
               atmSigSupportHiLyrInfo      INTEGER,
               atmSigSupportLoLyrInfo      INTEGER,
               atmSigSupportRepeatInd      INTEGER,
               atmSigSupportAALInfo        INTEGER,
               atmSigSupportPrefCarrier    OCTET STRING
                    }
          
          atmSigEntityRole     OBJECT-TYPE
               SYNTAX        INTEGER  {
                                other(1),
                                symmetric(2),
                                user(3),
                                network(4) }
               MAX-ACCESS    read-write
               STATUS        current
               DESCRIPTION
                 "The role of this signalling entity."
               ::= { atmSigEntry 1 }
          
          atmSigSuite     OBJECT-TYPE
               SYNTAX        INTEGER  {
                                other(1),
                                dss2(2),
          
          
          
          
          
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                                atmf(3),
                                bici(4) }
               MAX-ACCESS    read-write
               STATUS        current
               DESCRIPTION
                 "The protocol suite supported by this signalling
                 entity."
               ::= { atmSigEntry 2 }
          
          atmSigType     OBJECT-TYPE
               SYNTAX       INTEGER  {
                               other(1),
                               ituDss2(2),
                               atmfUni3Dot0(3),
                               atmfUni3Dot1(4),
                               atmfUni4Dot0(5),
                               atmfIisp(6),
                               atmfPnni1Dot0(7),
                               bici2Dot0(8)  }
               MAX-ACCESS   read-only
               STATUS       current
               DESCRIPTION
                 "The type of signalling that
                 will be used for the identified interface and
                 protocol suite.
          
                 ITU-T DSS2:
                 -  ITU-T Recommendation Q.2931, Broadband
                    Integrated Service Digital Network (B-ISDN)
                    Digital Service Signalling System No.2 (DSS2)
                    User-Network Interface (UNI) Layer 3
                    Specification for Basic Call/Connection
                    Control (September 1994) [11]
                 -  ITU-T Draft Recommendation Q.2961,
                    B-ISDN DSS 2 Support of Additional Traffic
                    Parameters (May 1995) [17]
                    NOTE: Update this reference when the draft matures
                 -  ITU-T Draft Recommendation Q.2971,
                    B-ISDN DSS 2 User Network Interface Layer 3
                    Specification for Point-to-multipoint Call/connection
                    Control (May 1995) [18]
                    NOTE: Update this reference when the draft matures
          
          
                 ATM Forum UNI 3.0:
          
          
          
          
          
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                   ATM Forum, ATM User-Network Interface,
                   Version 3.0 (UNI 3.0) Specification, Part I
                   (1994) [9].
          
                 ATM Forum UNI 3.1:
                   ATM Forum, ATM User-Network Interface,
                   Version 3.1 (UNI 3.1) Specification, Part I
                   (November 1994) [10].
          
                 ATM Forum UNI 4.0:
                   ATM Forum, ATM User-Network Interface,
                   Version 4.0 (UNI 4.0) Specification, Part I
                   (1995) [16].
          
                 ATM Forum IISP (formerly P-NNI v0) :
                   Interim Inter-switch Signaling Protocol
                   (IISP)Specification, Version 1.0, af-pnni-0026.000,
                   (December 1994) [19].
          
                 ATM Forum P-NNI1.0 :
                   Private Network-to-Network Interface in
                   ATM Forum 94-0471R4, P-NNI Draft
                   Specification, P-NNI SWG (November
                   1994) [12].
                   NOTE: Update this reference when the draft matures
          
                 ATM Forum B-ICI :
                 - Exact definition to be provided"
          
               ::= { atmSigEntry 3}
          
          atmSigSSCOPConEvents   OBJECT-TYPE
               SYNTAX            Counter32
               MAX-ACCESS        read-only
               STATUS            current
               DESCRIPTION
                 "SSCOP Connection Events Counter.  This
                 counter counts the sum of the following errors:
          
                 1) SSCOP Connection Disconnect Counter
          
                 The abnormal occurrence of this event is
                 characterized by the expiry of Timer_NO_RESPONSE.
                 (This event is communicated to the layer management
                 with MAA-ERROR code P.  See ITU-T Q.2110 [13].)
          
          
          
          
          
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                 2) SSCOP Connection Initiation Failure
          
                 This condition indicates the inability to establish
                 an SSCOP connection.  This event occurs whenever the
                 number of expiries of the connection control timer
                 (Timer_CC) exceeds the MaxCC or upon receipt of a
                 connection reject message BGREJ PDU.  (This event is
                 communicated to layer management with MAA-ERROR
                 code O.  See ITU-T Q.2110.)
          
                 3) SSCOP Connection Re-Establ/Resynch
          
                 This event occurs upon receipt of a BGN PDU or RESYNC
                 PDU."
               ::= { atmSigEntry 4}
          
          atmSigSSCOPErrdPdus   OBJECT-TYPE
               SYNTAX           Counter32
               MAX-ACCESS       read-only
               STATUS           current
               DESCRIPTION
                 "SSCOP Errored PDUs Counter.  This counter counts the
                 sum of the following errors:
          
                 1) Invalid PDUs.
                    These are defined in SSCOP and consist of PDUs
                    with incorrect length (MAA-ERROR code U),
                    undefined PDU type code or not 32-bit aligned.
          
                 2) PDUs that result in MAA error codes and are
                    discarded
                    See Errors A-M and Q-T defined in ITU-T Q.2110 [13]."
               ::= { atmSigEntry 5 }
          
          atmSigSetupAttempts    OBJECT-TYPE
               SYNTAX            Counter32
               MAX-ACCESS        read-only
               STATUS            current
               DESCRIPTION
                 "Call Setup Attempts Counter.  This counter counts
                 the number of call setup attempts(both successful
                 and unsuccessful)."
               ::= { atmSigEntry 6 }
          
          atmSigUnavailRoutes    OBJECT-TYPE
          
          
          
          
          
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               SYNTAX            Counter32
               MAX-ACCESS        read-only
               STATUS            current
               DESCRIPTION
                 "Route Unavailability Counter.  This counter counts
                 the sum of the following errors:
          
                 Cause Value            Meaning
          
                    1            unallocated (unassigned) number
                    2            no route to specified transit network
                    3            no route to destination
                    88           incompatible destination"
               ::= { atmSigEntry 7 }
          
          atmSigUnavailResrcs     OBJECT-TYPE
               SYNTAX             Counter32
               MAX-ACCESS         read-only
               STATUS             current
               DESCRIPTION
                 "Resource Unavailability Counter.  This counter counts
                 the sum of the following errors:
          
                 Cause Value          Meaning
          
                    27          destination out of order
                    35          requested VPCI/VCI not available
                    41          temporary failure
                    45          no VPCI/VCI available
                    47          resource unavailable, unspecified
                    49          Quality of Service unavailable
                    51          user cell rate not available
                    58          bearer capability not presently
                                available
                    63          Service or option not available,
                                unspecified
                    92          too many pending add party requests"
               ::= { atmSigEntry 8 }
          
          atmSigCldPrtyProblems     OBJECT-TYPE
               SYNTAX               Counter32
               MAX-ACCESS           read-only
               STATUS               current
               DESCRIPTION
                 "Called Party Responsible For Unsuccessful Call
          
          
          
          
          
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                 Counter.  This counter counts the sum of the
                 following errors:
          
                 Cause Value         Meaning
          
                    17           user busy
                    18           no user responding
                    21           call rejected
                    22           number changed
                    23           user rejects all calls with calling
                                 line id restriction (CLIR)
                    31           normal, unspecified
          
                 Note: Cause Value #30 'response to STATUS ENQUIRY'
                 was not included in this memo since it did not apply
                 to a hard failure"
               ::= { atmSigEntry 9 }
          
          atmSigMsgErrors    OBJECT-TYPE
               SYNTAX           Counter32
               MAX-ACCESS       read-only
               STATUS           current
               DESCRIPTION
                 "Incorrect Messages Counter.  The Incorrect
                 Messages Counter reflects any sort of incorrect
                 information in a message.  This includes:
          
                 - RELEASE, RELEASE COMPLETE, ADD PARTY REJECT,
                   DROP PARTY, and STATUS messages transmitted or
                   received, that contain any of the Cause values
                   listed below.
          
                 - Ignored messages.  These messages are dropped
                   because the message was so damaged that it could
                   not be further processed.  A list of dropped
                   messages is compiled below:
          
                    1.  Message with invalid protocol discriminator
          
                    2.  Message with errors in the call reference I.E.
                         - Bits 5-8 of the first octet not equal to
                           '0000'
                         - Bits 1-4 of the first octet indicating a
                           length other than 3 octets
                         - RELEASE COMPLETE message received with a
          
          
          
          
          
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                           call reference that does not relate to a
                           call active or in progress
                         - SETUP message received with call reference
                           flag incorrectly set to 1
                         - SETUP message received with a call
                           reference for a call that is already
                           active or in progress.
          
                    3.  Message too short
          
          
                 The following cause values are monitored by this
                 counter:
          
          
                 Cause Value     Meaning
          
                    10     VPCI/VCI unacceptable
                    28     invalid number format (address incomplete)
                    43     access information discarded
                    57     bearer capability not authorized
                    65     bearer capability not implemented
                    73     unsupported combination of traffic
                           parameters
                    78     AAL parameters cannot be supported
                    81     invalid call reference value
                    82     identified channel does not exist
                    89     invalid endpoint reference
                    91     invalid transit network selection
                    96     mandatory information element is missing
                    97     message type non-existent or not
                           implemented
                    99     information element non-existent or not
                           implemented
                    100    invalid information element contents
                    101    message not compatible with call state
                    104    incorrect message length
                    111    protocol error, unspecified
          
                    NOTE:  For this counter, RELEASE COMPLETE
                    messages that are a reply to a previous RELEASE
                    message and contain the same cause value, are
                    redundant (for counting purposes) and should not
                    be counted."
               ::= { atmSigEntry 10 }
          
          
          
          
          
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          atmSigTimerExpireds    OBJECT-TYPE
               SYNTAX               Counter32
               MAX-ACCESS           read-only
               STATUS               current
               DESCRIPTION
                 "Timer Expiries Counter.  The Timer Expiries Counter
                 provides a count of network timer expiries, and to
                 some extent, host or switch timer expiries.  The
                 conditions for incrementing this counter are:
                    - Expiry of any network timer
          
                    - Receipt of a RELEASE or RELEASE COMPLETE
                      message with Cause #102, 'recovery on
                      timer expiry'.
          
                 NOTE:  For this counter, RELEASE COMPLETE messages
                 that are a reply to a previous RELEASE message and
                 contain the same cause value, are redundant (for
                 counting purposes) and should not be counted."
               ::= { atmSigEntry 11 }
          
          atmSigRestarts    OBJECT-TYPE
               SYNTAX          Counter32
               MAX-ACCESS      read-only
               STATUS          current
               DESCRIPTION
                 "Restart Activity Counter.  The Restart Activity
                 Counter provides a count of host, switch, or
                 network restart activity.  This counter is
                 incremented when receiving or transmitting a
                 RESTART message.
          
                 NOTE:  For this counter, RELEASE COMPLETE
                 messages that are a reply to a previous RELEASE
                 message and contain the same cause value, are
                 redundant (for counting purposes) and should not
                 be counted."
               ::= { atmSigEntry 12 }
          
          atmSigInEstabls    OBJECT-TYPE
               SYNTAX          Counter32
               MAX-ACCESS      read-only
               STATUS          current
               DESCRIPTION
                 "Number of SVC VCCs established at this signalling       |
          
          
          
          
          
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                 entity for incoming connections."
                  ::= { atmSigEntry 13 }
          
          atmSigOutEstabls    OBJECT-TYPE
               SYNTAX          Counter32
               MAX-ACCESS      read-only
               STATUS          current
               DESCRIPTION
                 "Number of SVC VCCs established at this signalling       |
                 entity for outgoing connections."
                  ::= { atmSigEntry 14 }
          
          atmSigSupportClgPtyNumDel     OBJECT-TYPE
               SYNTAX        INTEGER  { enabled(1), disabled(2) }
               MAX-ACCESS    read-write
               STATUS        current
               DESCRIPTION
                 "This object indicates whether the Calling Party Number
                 Information Element is transferred to the called party
                 address.  The value of this object can be:
                   - enabled(1)  This Information Element is transferred
                                 to the called party
          
                   - disabled(2) This Information Element is NOT
                                 transferred to the called party."
               DEFVAL        { enabled }
               ::= { atmSigEntry 15 }
          
          atmSigSupportClgPtySubAddr   OBJECT-TYPE
               SYNTAX        INTEGER  { enabled(1), disabled(2) }
               MAX-ACCESS    read-write
               STATUS        current
               DESCRIPTION
                 "This object indicates whether to accept and transfer
                 the Calling Party Subaddress Information Element from
                 the calling party to the called party.  Calling party
                 subaddress information shall only be transferred to the
                 called party if calling party number delivery is
                 enabled (i.e., atmSigSupportClgPtyNumDel =
                 'enabled(1)'.  The value of this object can be:
                   - enabled(1)  This Information Element is transferred
                                 to the called party
          
                   - disabled(2) This Information Element is NOT
                                 transferred to the called party."
          
          
          
          
          
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               DEFVAL        { enabled }
               ::= { atmSigEntry 16 }
          
          atmSigSupportCldPtySubAddr    OBJECT-TYPE
               SYNTAX        INTEGER  { enabled(1), disabled(2) }
               MAX-ACCESS    read-write
               STATUS        current
               DESCRIPTION
                 "This object indicates whether to accept, transfer, and
                 deliver the Called Party Subaddress Information Element
                 from the calling party to the called party.  The value
                 of this object can be:
                   - enabled(1)  This Information Element is transferred
                                 to the called party
          
                   - disabled(2) This Information Element is NOT
                                 transferred to the called party."
               DEFVAL        { enabled }
               ::= { atmSigEntry 17 }
          
          atmSigSupportHiLyrInfo     OBJECT-TYPE
               SYNTAX        INTEGER  { enabled(1), disabled(2) }
               MAX-ACCESS    read-write
               STATUS        current
               DESCRIPTION
                 "This object indicates whether to accept, transfer, and
                 deliver the Broadband High Layer Information Element
                 from the calling party to the called party.  The value
                 of this object can be:
                   - enabled(1)  This Information Element is transferred
                                 to the called party
          
                   - disabled(2) This Information Element is NOT
                                 transferred to the called party."
               DEFVAL        { enabled }
               ::= { atmSigEntry 18 }
          
          atmSigSupportLoLyrInfo     OBJECT-TYPE
               SYNTAX        INTEGER  { enabled(1), disabled(2) }
               MAX-ACCESS    read-write
               STATUS        current
               DESCRIPTION
                 "This object indicates whether to accept, transfer, and
                 deliver the Broadband Low Layer Information Element
                 from the calling party to the called party.  The value
          
          
          
          
          
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                 of this object can be:
                   - enabled(1)  This Information Element is transferred
                                 to the called party
          
                   - disabled(2) This Information Element is NOT
                                 transferred to the called party."
               DEFVAL        { enabled }
               ::= { atmSigEntry 19 }
          
          atmSigSupportRepeatInd      OBJECT-TYPE
               SYNTAX        INTEGER  { enabled(1), disabled(2) }
               MAX-ACCESS    read-write
               STATUS        current
               DESCRIPTION
                 "This object indicates whether to accept, transfer, and
                 deliver the Broadband Repeat Indicator with two or
                 three instances of the Broadband Low Layer Information
                 Element for low layer information selection from the
                 calling party to the called party.  This object shall
                 only be transferred if atmSigSupportLoLyrInfo =
                 'enabled(1)'.  The value of this object can be:
                   - enabled(1)  This Information Element is transferred
                                 to the called party
          
                   - disabled(2) This Information Element is NOT
                                 transferred to the called party."
               DEFVAL        { enabled }
               ::= { atmSigEntry 20 }
          
          atmSigSupportAALInfo     OBJECT-TYPE
               SYNTAX        INTEGER  { enabled(1), disabled(2) }
               MAX-ACCESS    read-write
               STATUS        current
               DESCRIPTION
                 "This object indicates whether to accept, transfer, and
                 deliver the ATM Adaptation Layer Parameters Information
                 Element from the calling party to the called party.
                 The value of this object can be:
                   - enabled(1)  This Information Element is transferred
                                 to the called party
          
                   - disabled(2) This Information Element is NOT
                                 transferred to the called party."
               DEFVAL        { enabled }
               ::= { atmSigEntry 21 }
          
          
          
          
          
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          atmSigSupportPrefCarrier     OBJECT-TYPE
               SYNTAX        OCTET STRING
               MAX-ACCESS    read-write
               STATUS        current
               DESCRIPTION
                 "This parameter identifies the carrier to which
                 intercarrier calls originated from this interface are
                 routed when transit network selection information is
                 not provided by the calling party.  If a Carrier
                 Identification Code (CIC) is used the parameter shall
                 contain the CIC.  For three-digit CICs, the first octet
                 shall be '0' and the CIC is contained in the three
                 following octets.  If the preferred carrier feature is
                 not supported the value is a zero-length string."
               ::= { atmSigEntry 22 }
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          -- ****************************************************
          -- (3) ATM Switch/Service Group
          
          -- This group contains information for a Switch/Service
          -- that implements ATM interfaces.  This group contains
          -- the following table:
          -- 1. ATM Interface Administrative Address Table
          
          atmSwtchServcGroup OBJECT IDENTIFIER::= {
                                             atm2MIBObjects 3}
          
          -- 1. ATM Interface Administrative Address Table
          -- This table contains a list of the valid calling party
          -- addresses for a UNI in the case of both PVCs and SVCs.
          -- For PVCs, if addresses are not used then an entry in
          -- this table is not necessary.
          
          atmIfAdminAddrTable    OBJECT-TYPE
               SYNTAX       SEQUENCE OF AtmIfAdminAddrEntry
               MAX-ACCESS   not-accessible
               STATUS       current
               DESCRIPTION
                 "This table contains an address list on a per interface
                 basis.  This table only applies to switches or networks
                 and only for interfaces that have more than one address
                 assigned."
               ::= { atmSwtchServcGroup 1 }
          
          atmIfAdminAddrEntry    OBJECT-TYPE
               SYNTAX            AtmIfAdminAddrEntry
               MAX-ACCESS        not-accessible
               STATUS            current
               DESCRIPTION
                 "An entry in the atmIfAdminAddrTable."
               INDEX { ifIndex, atmIfAdminAddrAddress }
               ::= { atmIfAdminAddrTable  1}
          
          AtmIfAdminAddrEntry    ::= SEQUENCE  {
               atmIfAdminAddrAddress     AtmAddr,
               atmIfAdminAddrRowStatus   RowStatus
                    }
          
          atmIfAdminAddrAddress   OBJECT-TYPE
               SYNTAX             AtmAddr
               MAX-ACCESS         not-accessible
          
          
          
          
          
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               STATUS             current
               DESCRIPTION
                 "A valid address for a given switch or network
                 interface."
               ::= { atmIfAdminAddrEntry 1}
          
          atmIfAdminAddrRowStatus OBJECT-TYPE
               SYNTAX             RowStatus
               MAX-ACCESS         read-create
               STATUS             current
               DESCRIPTION
                 "This object is used to create and delete rows in the
                 atmIfAdminAddrTable."
               ::= { atmIfAdminAddrEntry 2}
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          -- ****************************************************
          -- (4) ATM Switch/Service SVC Group
          
          -- This group contains information for a Switch/Service
          -- that implements ATM interfaces supporting Switched
          -- Virtual Connections (SVCs).
          -- This group consists of the following:
          -- 1. ATM VPL SVC Cross-Connect Table
          -- 2. ATM VCL SVC Cross-Connect Table
          -- 3. Part of the ATM Interface Signalling Configuration
          --      Table in Section (2) See 'Section(2) ATM
          --      Switch/Service/Host SVC Group'.
          
          -- Note that some objects from this group were placed in
          -- the ATM Interface Signalling Configuration Table
          -- in "(2) ATM Switch/Service/Host SVC Group" so that
          -- the signalling information could be maintained in
          -- one table.
          -- The ATM Switch/Service/Host SVC Group contains
          -- information for a Switch/Service/Host that
          -- implements ATM interfaces supporting Switched
          -- Virtual Connections (SVCs).
          
          
          atmSwtchServcSVCGroup OBJECT IDENTIFIER::= {
                                             atm2MIBObjects 4}
          
          
          -- 1. ATM VPL SVC Cross-Connect Table
          -- This group contains configuration and state
          -- information of all SVC point-to-point,
          -- point-to-multipoint, or multipoint-to-multipoint
          -- VP cross-connects.
          
          -- This table has read-only access and can be used
          -- to monitor the cross-connects which connect
          -- the VPLs together in an ATM switch
          -- or network. The atmSvcVpCrossConnectIndex
          -- is used to associate the related SVC
          -- VPLs that are cross-connected together.
          -- The atmSvcVpCrossConnectAdminStatus object
          -- has read-write access to allow for tear-down.
          
          -- The ATM SVC VP Cross Connect Table
          -- models each bi-directional Switched
          
          
          
          
          
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          -- Virtual Circuit (SVC) VPC
          -- cross-connect as a set of entries in
          -- the atmSvcVpCrossConnectTable. A
          -- point-to-point VPC cross-connect is modeled
          -- as one entry; a point-to-multipoint (N leafs) VPC
          -- cross-connect as N entries in this table; and
          -- a multipoint-to-multipoint (N parties) VPC cross-
          -- connect as N(N-1)/2 entries in this table.
          -- In the latter cases, all the N (or N(N-1)/2) entries
          -- are associated with a single VPC cross-connect by
          -- having the same value of atmSvcVpCrossConnectIndex.
          
          --      _________________________________________
          --      |                                       |
          --  Low |         ATM Switch or Network         | High
          --  port|                                       | port
          -- _____|>> from low to high VPC traffic flow >>|______
          --      |<< from high to low VPC traffic flow <<|
          --      |                                       |
          --      |_______________________________________|
          --
          --          Figure 8: VPC Cross-Connect Model
          
          -- The terms low and high are chosen to represent
          -- numerical ordering of the two interfaces associated
          -- with a VPC cross-connect. That is, the ATM interface
          -- with the lower value of ifIndex is termed 'low',
          -- while the other ATM interface associated with the
          -- VPC cross-connect is termed 'high'. This terminology
          -- is used to provide directional information; for
          -- example, the atmSvcVpCrossConnectL2HOperStatus
          -- applies to the low->high direction, and
          -- atmSvcVpCrossConnectH2LOperStatus applies to the
          -- high->low  direction, as illustrated in Figure 8.
          
          
          --  The ATM VP Cross Connect Table
          
          
          atmSvcVpCrossConnectTable OBJECT-TYPE
               SYNTAX            SEQUENCE OF AtmSvcVpCrossConnectEntry
               MAX-ACCESS        not-accessible
               STATUS            current
               DESCRIPTION
               "The ATM SVC VP Cross Connect table.  A bi-
          
          
          
          
          
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               directional VP cross-connect which
               cross-connects two SVC VPLs is modeled
               as one entry in this table."
               ::= { atmSwtchServcSVCGroup 1 }
          
          
          atmSvcVpCrossConnectEntry OBJECT-TYPE
               SYNTAX  AtmSvcVpCrossConnectEntry
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
               "An entry in the ATM SVC VP Cross Connect table.
               This entry is used to model a bi-directional
               ATM SVC VP cross-connect which cross-connects
               two VPLs."
               INDEX { atmSvcVpCrossConnectIndex,
                       atmSvcVpCrossConnectLowIfIndex,
                       atmSvcVpCrossConnectLowVpi,
                       atmSvcVpCrossConnectHighIfIndex,
                       atmSvcVpCrossConnectHighVpi }
               ::= { atmSvcVpCrossConnectTable 1 }
          
          AtmSvcVpCrossConnectEntry ::= SEQUENCE {
               atmSvcVpCrossConnectIndex          INTEGER,
               atmSvcVpCrossConnectLowIfIndex     IfIndex,
               atmSvcVpCrossConnectLowVpi         INTEGER,
               atmSvcVpCrossConnectHighIfIndex    IfIndex,
               atmSvcVpCrossConnectHighVpi        INTEGER,
               atmSvcVpCrossConnectAdminStatus    INTEGER,
               atmSvcVpCrossConnectOperStatus     INTEGER,
               atmSvcVpCrossConnectLastChange     TimeStamp
                            }
          
          atmSvcVpCrossConnectIndex OBJECT-TYPE
               SYNTAX  INTEGER (1..2147483647)
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
               "A unique value to identify this SVC VP cross-connect."
               ::= { atmSvcVpCrossConnectEntry 1 }
          
          atmSvcVpCrossConnectLowIfIndex OBJECT-TYPE
               SYNTAX  IfIndex
               MAX-ACCESS  not-accessible
               STATUS  current
          
          
          
          
          
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               DESCRIPTION
               "The value of this object is equal to MIB II's
               ifIndex value of the ATM interface port for this
               SVC VP cross-connect.  The term low implies
               that this ATM interface has the numerically lower
               ifIndex value than the other ATM interface
               identified in the same atmSvcVpCrossConnectEntry."
               ::= { atmSvcVpCrossConnectEntry 2 }
          
          atmSvcVpCrossConnectLowVpi OBJECT-TYPE
               SYNTAX  INTEGER  (1..4095)
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
               "The value of this object is equal to the VPI
               value at the ATM interface
               associated with the SVC VP cross-connect that is
               identified by atmSvcVpCrossConnectLowIfIndex.
               The VPI value cannot exceed the number
               supported by the atmInterfaceMaxVpiBits
               at the low ATM interface port."
               ::= { atmSvcVpCrossConnectEntry 3 }
          
          atmSvcVpCrossConnectHighIfIndex OBJECT-TYPE
               SYNTAX  IfIndex
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
                "The value of this object is equal to MIB II's
                 ifIndex value of the ATM interface port for
                 this SVC VP cross-connect.  The term high
                 implies that this ATM interface has the
                 numerically higher ifIndex value than the
                 other ATM interface identified in the same
                 atmSvcVpCrossConnectEntry."
               ::= { atmSvcVpCrossConnectEntry 4 }
          
          atmSvcVpCrossConnectHighVpi OBJECT-TYPE
               SYNTAX  INTEGER   (1..4095)
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
                "The value of this object is equal to the VPI
                 value at the ATM interface associated with
                 the SVC VP cross-connect that is identified
          
          
          
          
          
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                 by atmSvcVpCrossConnectHighIfIndex.
                 The VPI value cannot exceed the number
                 supported by the atmInterfaceMaxVpiBits
                 at the high ATM interface port."
               ::= { atmSvcVpCrossConnectEntry 5 }
          
          atmSvcVpCrossConnectAdminStatus OBJECT-TYPE
               SYNTAX  INTEGER {
                               up(1),
                               down(2)
                       }
               MAX-ACCESS  read-write
               STATUS  current
               DESCRIPTION
                "The value of this object identifies the desired
                 administrative status of this bi-directional
                 SVC VP cross-connect.  The up and down states
                 indicate that the traffic flow is enabled
                 and disabled respectively on this VP
                 cross-connect.  The read-write status allows
                 for tear-down."
          ::= { atmSvcVpCrossConnectEntry 6 }
          
          atmSvcVpCrossConnectOperStatus OBJECT-TYPE
               SYNTAX  INTEGER {
                         up(1),
                         down(2),
                         unknown(3)
                           }
               MAX-ACCESS  read-only
               STATUS  current
               DESCRIPTION
                "The value of this object identifies the current
                 operational status of this bi-directional SVC VP
                 cross-connect.  The up and down states indicate
                 that this ATM SVC VP cross-connect is
                 operational or not operational, respectively.
                 The unknown state indicates that
                 the state of it cannot be determined."
               ::= { atmSvcVpCrossConnectEntry 7 }
          
          atmSvcVpCrossConnectLastChange OBJECT-TYPE
               SYNTAX  TimeStamp
               MAX-ACCESS  read-only
               STATUS  current
          
          
          
          
          
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               DESCRIPTION
                "The value of MIB II's sysUpTime object
                 at the time this bi-directional SVC VP
                 cross-connect entered its current
                 operational state.  If the current state was
                 entered prior to the last re-initialization of
                 the agent, then this object contains a zero
                 value."
               ::= { atmSvcVpCrossConnectEntry 8 }
          
          
          -- 2. ATM Virtual Channel (VC) Cross Connect Group
          
          -- This group contains configuration and state
          -- information of a bi-directional SVC VC cross-connect.
          
          -- This group is used to model a bi-directional
          -- point-to-point, point-to-multipoint or
          -- multipoint-to-multipoint SVC VC cross-connect.
          
          -- This table has read-only access and is used
          -- to monitor the cross-connects which connect
          -- the VCLs together in an ATM switch
          -- or network that belong to a VC connection. The
          -- atmSvcVcCrossConnectIndex is used to associate
          -- the related SVC VCLs that are cross-connected together.
          -- The atmSvcVcCrossConnectAdminStatus object
          -- has read-write access to allow for tear-down.
          
          
          --  The ATM VC Cross Connect Table
          
          atmSvcVcCrossConnectTable OBJECT-TYPE
               SYNTAX  SEQUENCE OF AtmSvcVcCrossConnectEntry
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
                "The ATM SVC VC Cross Connect table.  A bi-
                 directional SVC VC cross-connect which
                 cross-connects two end points (i.e., VCLs)
                 is modeled as one entry in this table."
               ::= { atmSwtchServcSVCGroup 2 }
          
          
          atmSvcVcCrossConnectEntry OBJECT-TYPE
          
          
          
          
          
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               SYNTAX  AtmSvcVcCrossConnectEntry
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
                "An entry in the ATM SVC VC Cross Connect table.
                 This entry is used to model a bi-directional ATM
                 SVC VC cross-connect cross-connecting two end points."
               INDEX { atmSvcVcCrossConnectIndex,
                       atmSvcVcCrossConnectLowIfIndex,
                       atmSvcVcCrossConnectLowVpi,
                       atmSvcVcCrossConnectLowVci,
                       atmSvcVcCrossConnectHighIfIndex,
                       atmSvcVcCrossConnectHighVpi,
                       atmSvcVcCrossConnectHighVci }
               ::= { atmSvcVcCrossConnectTable 1 }
          
          AtmSvcVcCrossConnectEntry ::= SEQUENCE {
               atmSvcVcCrossConnectIndex          INTEGER,
               atmSvcVcCrossConnectLowIfIndex     IfIndex,
               atmSvcVcCrossConnectLowVpi         INTEGER,
               atmSvcVcCrossConnectLowVci         INTEGER,
               atmSvcVcCrossConnectHighIfIndex    IfIndex,
               atmSvcVcCrossConnectHighVpi        INTEGER,
               atmSvcVcCrossConnectHighVci        INTEGER,
               atmSvcVcCrossConnectAdminStatus    INTEGER,
               atmSvcVcCrossConnectOperStatus     INTEGER,
               atmSvcVcCrossConnectLastChange     TimeStamp
                       }
          
          atmSvcVcCrossConnectIndex OBJECT-TYPE
               SYNTAX  INTEGER (1..2147483647)
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
                "A unique value to identify this SVC VC cross-
                 connect."
               ::= { atmSvcVcCrossConnectEntry 1 }
          
          atmSvcVcCrossConnectLowIfIndex OBJECT-TYPE
               SYNTAX  IfIndex
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
                "The value of this object is equal to MIB II's
                 ifIndex value of the ATM interface port for this
          
          
          
          
          
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                 SVC VC cross-connect.  The term low implies
                 that this ATM interface has the numerically lower
                 ifIndex value than the other ATM interface
                 identified in the same atmSvcVcCrossConnectEntry."
               ::= { atmSvcVcCrossConnectEntry 2 }
          
          atmSvcVcCrossConnectLowVpi OBJECT-TYPE
               SYNTAX  INTEGER  (0..4095)
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
                "The value of this object is equal to the VPI
                 value at the ATM interface
                 associated with the SVC VC cross-connect that is
                 identified by atmSvcVcCrossConnectLowIfIndex.
                 The VPI value cannot exceed the number
                 supported by the atmInterfaceMaxVpiBits
                 at the low ATM interface port."
               ::= { atmSvcVcCrossConnectEntry 3 }
          
          atmSvcVcCrossConnectLowVci OBJECT-TYPE
               SYNTAX  INTEGER  (0..65535)
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
                "The value of this object is equal to the VCI
                 value at the ATM interface
                 associated with this SVC VC cross-connect that is
                 identified by atmSvcVcCrossConnectLowIfIndex.
                 The VCI value cannot exceed the number
                 supported by the atmInterfaceMaxVciBits
                 at the low ATM interface port."
               ::= { atmSvcVcCrossConnectEntry 4 }
          
          atmSvcVcCrossConnectHighIfIndex OBJECT-TYPE
               SYNTAX  IfIndex
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
                "The value of this object is equal to MIB II's
                 ifIndex value for the ATM interface port for
                 this SVC VC cross-connect.  The term high
                 implies that this SVC VC cross-connect
                 that this ATM interface has the numerically higher
                 ifIndex value than the other ATM interface
          
          
          
          
          
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                 identified in the same atmSvcVcCrossConnectEntry."
               ::= { atmSvcVcCrossConnectEntry 5 }
          
          atmSvcVcCrossConnectHighVpi OBJECT-TYPE
               SYNTAX  INTEGER   (0..4095)
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
                "The value of this object is equal to the VPI
                 value at the ATM interface
                 associated with the SVC VC cross-connect that is
                 identified by atmSvcVcCrossConnectHighIfIndex.
                 The VPI value cannot exceed
                 the number supported by the atmInterfaceMaxVpiBits
                 at the high ATM interface port."
               ::= { atmSvcVcCrossConnectEntry 6 }
          
          atmSvcVcCrossConnectHighVci OBJECT-TYPE
               SYNTAX  INTEGER   (0..65535)
               MAX-ACCESS  not-accessible
               STATUS  current
               DESCRIPTION
                "The value of this object is equal to the VCI
                 value at the ATM interface
                 associated with the SVC VC cross-connect that is
                 identified by atmSvcVcCrossConnectHighIfIndex.
                 The VCI value cannot exceed
                 the number supported by the atmInterfaceMaxVciBits
                 at the high ATM interface port."
               ::= { atmSvcVcCrossConnectEntry 7 }
          
          atmSvcVcCrossConnectAdminStatus OBJECT-TYPE
               SYNTAX  INTEGER {
                         up(1),
                         down(2)
                         }
               MAX-ACCESS  read-write
               STATUS  current
               DESCRIPTION
                "The value of this object identifies the desired
                 administrative status of this bi-directional
                 SVC VC cross-connect. The up and down states
                 indicate that the traffic flow is enabled or
                 disabled respectively on this SVC VC
                 cross-connect. The read-write status allows
          
          
          
          
          
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                 for tear-down."
          ::= { atmSvcVcCrossConnectEntry 8 }
          
          atmSvcVcCrossConnectOperStatus OBJECT-TYPE
               SYNTAX  INTEGER {
                         up(1),
                         down(2),
                         unknown(3)
                       }
               MAX-ACCESS  read-only
               STATUS  current
               DESCRIPTION
                "The value of this object identifies the current
                 operational status of this bi-directional SVC VC
                 cross-connect.  The up and down states indicate
                 that this ATM SVC VC cross-connect is
                 operational or not operational, respectively.
                 The unknown state indicates that the state of
                 it cannot be determined."
               ::= { atmSvcVcCrossConnectEntry 9 }
          
          atmSvcVcCrossConnectLastChange OBJECT-TYPE
               SYNTAX  TimeStamp
               MAX-ACCESS  read-only
               STATUS  current
               DESCRIPTION
                "The value of MIB II's sysUpTime object
                 at the time this bi-directional SVC VC
                 cross-connect entered its current
                 operational state.  If the current state was
                 entered prior to the last re-initialization
                 of the agent, then this object contains a
                 zero value."
               ::= { atmSvcVcCrossConnectEntry 10 }
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          -- ****************************************************
          -- (5) ATM Host Group
          
          -- This group contains information for a Host
          -- that implements ATM interfaces.  The following
          -- tables are included in this group:
          -- 1. ATM VPI/VCI to Address Mapping Table
          -- 2. ATM Address to VPI/VCI Mapping Table
          
          atmHostGroup OBJECT IDENTIFIER::= {atm2MIBObjects 5}
          
          
          -- 1. ATM VPI/VCI to Address Mapping Table
          
              atmVclAddrBindTable  OBJECT-TYPE
                  SYNTAX         SEQUENCE OF AtmVclAddrBindEntry
                  MAX-ACCESS     not-accessible
                  STATUS         current
                  DESCRIPTION
                      "This table provides a mapping between the
                      atmVclTable and the ATM local/remote address. This
                      table can be used to retrieve the local and remote
                      ATM address pair for a given Vcl. Note that there
                      can be more than one pair of local and remote ATM
                      addresses for a VCL in a point to multi-point
                      call."
                  ::= { atmHostGroup 2 }
          
              atmVclAddrBindEntry    OBJECT-TYPE
                  SYNTAX        AtmVclAddrBindEntry
                  MAX-ACCESS    not-accessible
                  STATUS        current
                  DESCRIPTION
                      "Each entry in this table represents a binding      |
                      between a VCL and an ATM address associated with    |
                      this call. This ATM address can be either the       |
                      called party address or the calling party address.  |
                      There can be more than one pair of local/remote     |
                      ATM addresses associated with the VCL entry for     |
                      point to multi-point calls. Objects                 |
                      atmVclAddrBindAddr, atmVclAddrBindType, and         |
                      atmVclAddrBindRowStatus are required during row     |
                      creation."
                  INDEX  { ifIndex, atmVclVpi, atmVclVci,
                           atmVclAddrBindAddr }
          
          
          
          
          
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                  ::= { atmVclAddrBindTable 1 }
          
              AtmVclAddrBindEntry ::=
                  SEQUENCE {
                      atmVclAddrBindAddr       AtmAddr,
                      atmVclAddrBindType       INTEGER,
                      atmVclAddrBindRowStatus  RowStatus
                  }
          
          
              atmVclAddrBindAddr     OBJECT-TYPE
                  SYNTAX        AtmAddr
                  MAX-ACCESS    not-accessible                            |
                  STATUS        current
                  DESCRIPTION
                      "An ATM address on one end of the VCL.  For SVCs,
                      the agent supplies the value of this object at
                      creation time.  For PVCs, manager can supply the
                      value of this object during or after the PVC        |
                      creation."
                  ::= { atmVclAddrBindEntry 1 }
          
             atmVclAddrBindType     OBJECT-TYPE
                 SYNTAX       INTEGER { local(1), remote(2) }
                 MAX-ACCESS   read-create                                 |
                 STATUS       current
                 DESCRIPTION
                      "The type of ATM Address represented by the object  |
                      atmVclAddrBindAddr.  Choices are either local       |
                      address or remote address."
                  ::= { atmVclAddrBindEntry 2 }
          
             atmVclAddrBindRowStatus     OBJECT-TYPE
                 SYNTAX       RowStatus
                 MAX-ACCESS   read-create
                 STATUS       current
                 DESCRIPTION
                      "This object is used to create or destroy an entry
                      from this table.  Writable values are and
                      'destroy' - used to delete an entry from this
                      table.  Readable values are 'active' - the entry
                      is active."
                  ::= { atmVclAddrBindEntry 3 }
          
          
          
          
          
          
          
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          -- 2. ATM Address to VPI/VCI Mapping Table
          -- This table provides an alternative way to access
          -- a row in the atmVclAddrBindTable by using
          -- an ATM address as an index, instead of
          -- the ifIndex
          
              atmAddrVclTable   OBJECT-TYPE
                  SYNTAX        SEQUENCE OF AtmAddrVclEntry
                  MAX-ACCESS    not-accessible
                  STATUS        current
                  DESCRIPTION
                      "This table provides an alternative way to
                      retrieve the atmVclTable.  This table can be used
                      to retrieve the indexing to the atmVclTable by an
                      ATM address."
                  ::= { atmHostGroup 3 }
          
              atmAddrVclEntry    OBJECT-TYPE
                  SYNTAX         AtmAddrVclEntry
                  MAX-ACCESS     not-accessible
                  STATUS         current
                  DESCRIPTION
                      "Each entry in this table represents an entry in
                      the atmVclTable of the ATM MIB [1] by it's ATM
                      address.  The ATM address is either the local or
                      remote ATM address of the call.  Entries in this
                      table are read only.  They show up when entries
                      are created in the atmVclAddrBindTable."
                  INDEX { atmVclAddrBindAddr, atmAddrVclAtmIfIndex,       |
                          atmAddrVclVpi, atmAddrVclVci }                  |
                  ::= { atmAddrVclTable 1 }
          
              AtmAddrVclEntry ::=
                  SEQUENCE {
                      atmAddrVclAtmIfIndex  IfIndex,
                      atmAddrVclVpi         INTEGER,
                      atmAddrVclVci         INTEGER,                      |
                      atmAddrVclAddrType    INTEGER                       |
                      }
          
              atmAddrVclAtmIfIndex     OBJECT-TYPE
                  SYNTAX               IfIndex
                  MAX-ACCESS           not-accessible                     |
                  STATUS               current
                  DESCRIPTION
          
          
          
          
          
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                      "The interface index of the ATM interface where
                      this VCL pertains to.  This object combined with
                      the atmAddrVclVpi and atmAddrVclVci objects serves
                      as an index to the atmVclTable."
                  ::= { atmAddrVclEntry 1 }
          
              atmAddrVclVpi     OBJECT-TYPE
                  SYNTAX        INTEGER (0..4095)
                  MAX-ACCESS    not-accessible                            |
                  STATUS        current
                  DESCRIPTION
                      "The VPI value of the VCL.  This object combined
                      with the atmAddrVclAtmIfIndex and atmAddrVclVci
                      objects serves as an index to the atmVclTable."
                  ::= { atmAddrVclEntry 2 }
          
              atmAddrVclVci     OBJECT-TYPE
                  SYNTAX        INTEGER (0..65535)
                  MAX-ACCESS    not-accessible                            |
                  STATUS        current
                  DESCRIPTION
                      "The VCI value of the VCL.  This object combined
                      with the atmAddrVclAtmIfIndex and atmAddrVclVpi
                      objects serves as an index to the atmVclTable."
                  ::= { atmAddrVclEntry 3 }
          
             atmAddrVclAddrType     OBJECT-TYPE                           +
                 SYNTAX       INTEGER { local(1), remote(2) }             +
                 MAX-ACCESS   read-only                                   +
                 STATUS       current                                     +
                 DESCRIPTION                                              +
                      "The type of ATM Address represented by the object  +
                      atmVclAddrBindAddr.  Choices are either local       +
                      address or remote address."                         +
                  ::= { atmAddrVclEntry 4 }                               +
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          -- ****************************************************
          -- (6) ATM Host Signalling Group
          
          -- This group contains information for a Host
          -- that implements ATM SVCs.  This group includes the
          -- following table:
          -- 1. ATM Signalling Descriptor Parameter Table
          
          atmHostSigGroup OBJECT IDENTIFIER::= {atm2MIBObjects 6}
          
          -- 1. ATM Signalling Descriptor Parameter Table
          -- This table contains objects to provide signalling
          -- capabilities of VCLs.
          
              atmSigDescrParamTable     OBJECT-TYPE
                  SYNTAX       SEQUENCE OF AtmSigDescrParamEntry
                  MAX-ACCESS   not-accessible
                  STATUS       current
                  DESCRIPTION
                      "A table contains signalling capabilities of VCLs
                      except the Traffic Descriptor.  Traffic
                      descriptors are described in the
                      atmTrafficDescrParamTable."
                  REFERENCE
                      "ATM Forum's ATM User-Network Interface
                      Specification, Version 3.0, Section 5.4.5 Variable
                      Length Information Elements."
                  ::= { atmHostSigGroup 1 }
          
              atmSigDescrParamEntry        OBJECT-TYPE
                  SYNTAX        AtmSigDescrParamEntry
                  MAX-ACCESS    not-accessible
                  STATUS        current
                  DESCRIPTION
                      "Each entry in this table represents a set of
                      signalling capabilities that can be applied to a
                      VCL.  Objects atmSigDescrParamRowStatus is
                      required during creation."
                  INDEX { atmSigDescrParamIndex }
                  ::= { atmSigDescrParamTable 1 }
          
              AtmSigDescrParamEntry ::=
                  SEQUENCE {
                      atmSigDescrParamIndex       AtmSigDescrParamIndex,
                      atmSigDescrParamAalType     INTEGER,
          
          
          
          
          
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                      atmSigDescrParamAalMode     INTEGER,
                      atmSigDescrParamAalSscsType INTEGER,
                      atmSigDescrParamBhliType    INTEGER,
                      atmSigDescrParamBhliInfo    OCTET STRING,
                      atmSigDescrParamBbcClass    INTEGER,
                      atmSigDescrParamBbcTraffic  INTEGER,
                      atmSigDescrParamBbcTiming   INTEGER,
                      atmSigDescrParamBbcClipping INTEGER,
                      atmSigDescrParamBbcConnConf INTEGER,
                      atmSigDescrParamBlliLayer2  INTEGER,
                      atmSigDescrParamBlliLayer3  INTEGER,
                      atmSigDescrParamBlliPktSize INTEGER,
                      atmSigDescrParamBlliSnapId  INTEGER,
                      atmSigDescrParamBlliOuiPid  OCTET STRING,
                      atmSigDescrParamRowStatus   RowStatus
                  }
          
              atmSigDescrParamIndex OBJECT-TYPE
                  SYNTAX        AtmSigDescrParamIndex
                  MAX-ACCESS    not-accessible
                  STATUS        current
                  DESCRIPTION
                      "The value of this object is used by the
                      atmVclExtTable to identify a row in this table."
                  ::= { atmSigDescrParamEntry 1 }
          
               atmSigDescrParamAalType OBJECT-TYPE
                   SYNTAX       INTEGER {
                      other(1),      -- not defined
                      aal1(2),       -- AAL type 1
                      aal34(3),      -- AAL type 3/4
                      aal5(4),       -- AAL type 5
                      userDefined(5) -- User-Defined AAL
                      }
                   MAX-ACCESS   read-create
                   STATUS       current
                   DESCRIPTION
                      "The AAL type. The value of this object is set to
                      other(1) when not defined."
                  DEFVAL { other }
                  ::= { atmSigDescrParamEntry 2 }
          
               atmSigDescrParamAalMode OBJECT-TYPE
                   SYNTAX     INTEGER {
                      other(1),       -- not defined
          
          
          
          
          
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                      msg(2),         -- Message mode
                      stream(3)       -- Streaming mode
                      }
                   MAX-ACCESS read-create
                   STATUS     current
                   DESCRIPTION
                      "The AAL mode.  The value of this object is
                      other(1) when atmSigDescrParamAalType is aal1(2).
                      Values msg(2) and stream(3) are only applicable
                      when atmSigDescrParamAalType is set to aal34(3) or
                      aal5(4).  This object is applicable to UNI 3.0
                      only."
                   DEFVAL { other }
                   ::= { atmSigDescrParamEntry 3 }
          
               atmSigDescrParamAalSscsType OBJECT-TYPE
                   SYNTAX     INTEGER {
                      other(1),       -- other, or not used
                      assured(2),     -- Data SSCS based on SSCOP
                                      -- assured operation
                      nonassured(3),  -- Data SSCS based on SSCOP
                                      -- non-assured operation
                      frameRelay(4)   -- frame relay SSCS
                      }
                   MAX-ACCESS read-create
                   STATUS     current
                   DESCRIPTION
                      "The SSCS type used by this entry."
                   DEFVAL { other }
                   ::= { atmSigDescrParamEntry 4 }
          
                atmSigDescrParamBhliType OBJECT-TYPE
                   SYNTAX      INTEGER {
                      other(1),         -- not defined
                      iso(2),           -- ISO
                      user(3),          -- User specific
                      hiProfile(4),     -- Higher layer profile
                                        -- this enum applicable to
                                        -- UNI 3.0 only
                      vendorSpecific(5) -- Vender specific
                                        -- application identifier
                      }
                   MAX-ACCESS  read-create
                   STATUS      current
                   DESCRIPTION
          
          
          
          
          
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                      "The Broadband high layer type."
                   DEFVAL { other }
                   ::= { atmSigDescrParamEntry 5 }
          
                atmSigDescrParamBhliInfo OBJECT-TYPE
                   SYNTAX     OCTET STRING (SIZE(0..7))
                   MAX-ACCESS read-create
                   STATUS     current
                   DESCRIPTION
                      "The Broadband high layer information.  When
                      atmSigDescrParamBhliType is set to iso(2), the
                      value of this object is a zero length string.
                      When atmSigDescrParamBhliType is set to
                      hiProfile(4), the value of this object is a length
                      of 4 octet string containing user to user profile
                      identifier.  When atmSigDescrParamBhliType is set
                      to    vendorSpecific(4), the value of this object
                      is a length of 7 octet string.  The most
                      significant 3 octets consist of a globally-
                      administered OUI, the least significant 4 octets
                      are the vender administered application OUI."
                   DEFVAL { ''H }
                   ::= { atmSigDescrParamEntry 6 }
          
                atmSigDescrParamBbcClass OBJECT-TYPE
                   SYNTAX      INTEGER {
                      other(1),   -- not defined or unspecified
                      bcoba(2),   -- BCOB-A
                      bcobc(3),   -- BCOB-C
                      bcobx(4)    -- BCOB-X
                      }
                   MAX-ACCESS  read-create
                   STATUS      current
                   DESCRIPTION
                      "The Broadband bearer capability class."
                   ::= { atmSigDescrParamEntry 7 }
          
                atmSigDescrParamBbcTraffic OBJECT-TYPE
                   SYNTAX      INTEGER {
                       other(1),        -- not defined
                       noIndication(2), -- No indication
                       cbr(3),          -- Constant bit rate
                       vbr(4)           -- Variable bit rate
                              }
                   MAX-ACCESS  read-create
          
          
          
          
          
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                   STATUS      current
                   DESCRIPTION
                      "The Broadband bearer capability traffic type."
                   ::= { atmSigDescrParamEntry 8 }
          
                atmSigDescrParamBbcTiming OBJECT-TYPE
                   SYNTAX      INTEGER {
                       other(1),         -- not specified
                       noIndication(2),  -- No Indication
                       required(3),      -- end-to-end timing required
                       notReq(4)         -- end-to-end timing not
                                         -- required
                       }
                   MAX-ACCESS  read-create
                   STATUS      current
                   DESCRIPTION
                      "The Broadband bearer capability timing
                      requirements."
                   ::= { atmSigDescrParamEntry 9 }
          
                atmSigDescrParamBbcClipping OBJECT-TYPE
                   SYNTAX     INTEGER {
                       other(1),          -- not specified
                       true(2),           -- not susceptible to
                                          -- clipping
                       false(3)           -- susceptible to clipping
                       }
                   MAX-ACCESS  read-create
                   STATUS      current
                   DESCRIPTION
                      "The Broadband bearer capability susceptibility to
                      clipping parameter."
                   ::= { atmSigDescrParamEntry 10 }
          
                atmSigDescrParamBbcConnConf OBJECT-TYPE
                   SYNTAX     INTEGER {
                       ptp(1),   -- point-to-point
                       ptmp(2)   -- point-to-multipoint
                       }
                   MAX-ACCESS read-create
                   STATUS     current
                   DESCRIPTION
                      "The Broadband bearer capability user plane
                      connection configuration parameter."
                   ::= { atmSigDescrParamEntry 11 }
          
          
          
          
          
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                atmSigDescrParamBlliLayer2 OBJECT-TYPE
                    SYNTAX     INTEGER {
                       other(1),        -- not specified
                       iso1745(2),      -- Basic mode ISO 1745
                       q921(3),         -- CCITT Recommendation Q.921
                       x25linklayer(4), -- CCITT Recommendation X.25
                                        -- Link Layer
                       x25multilink(5), -- CCITT Recommendation X.25
                                        -- Multilink
                       lapb(6),         -- Extended LAPB; for half
                                        -- duplex operation
                       hdlcArm(7),      -- HDLC ARM (ISO 4335)
                       hdlcNrm(8),      -- HDLC NRM (ISO 4335)
                       hdlcAbm(9),      -- HDLC ABM (ISO 4335)
                       iso88022(10),    -- LAN logical link control
                                        -- (ISO 8802/2)
                       x75slp(11),      -- CCITT Recommendation X.75,
                                        -- single link
                                        -- procedure (SLP)
                       q922(12),        -- CCITT Recommendation Q.922
                       userDef(13),     -- User specified
                       iso7776(14)      -- ISO 7776 DTE-DTE operation
                       }
                    MAX-ACCESS read-create
                    STATUS     current
                    DESCRIPTION
                      "The Broadband low layer information, protocol
                      type of layer 2.  The value of this object is
                      other(1) if layer 2 protocol is not used."
                    DEFVAL { other }
                    ::= { atmSigDescrParamEntry 12 }
          
                atmSigDescrParamBlliLayer3 OBJECT-TYPE
                    SYNTAX     INTEGER {
                       other(1),       -- not specified
                       x25pkt(2),      -- CCITT Recommendation X.25
                                       -- packet layer
                       isoiec8208(3),  -- ISO/IEC 8208 (X.25 packet
                                       -- level protocol for data
                                       -- terminal equipment)
                       x223iso8878(4), -- X.223/ISO 8878
                       isoiec8473(5),  -- ISO/IEC 8473 OSI
                                       -- connectionless
                                       -- mode protocol
                       t70(6),         -- CCITT Recommendation T.70
          
          
          
          
          
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                                       -- minimum
                                       -- network layer
                       tr9577(7),      -- ISO/IEC TR 9577 Protocol
                                       -- Identification in the
                                       -- network layer
                       userDef(8)      -- user specified
                       }
                    MAX-ACCESS read-create
                    STATUS     current
                    DESCRIPTION
                      "The Broadband low layer information, protocol
                      type of layer 3.  The value of this object is
                      other(1) if layer 3 protocol is not used."
                    DEFVAL { other }
                    ::= { atmSigDescrParamEntry 13 }
          
                atmSigDescrParamBlliPktSize OBJECT-TYPE
                    SYNTAX     INTEGER {
                       other(1),        -- not used
                       s16(2),          -- 16 octets
                       s32(3),          -- 32 octets
                       s64(4),          -- 64 octets
                       s128(5),         -- 128 octets
                       s256(6),         -- 256 octets
                       s512(7),         -- 512 octets
                       s1024(8),        -- 1028 octets
                       s2048(9),        -- 2048 octets
                       s4096(10)        -- 4096 octets
                    }
                    MAX-ACCESS read-create
                    STATUS     current
                    DESCRIPTION
                      "The default packet size defined in B-LLI."
                    DEFVAL { other }
                    ::= { atmSigDescrParamEntry 14 }
          
                atmSigDescrParamBlliSnapId OBJECT-TYPE
                    SYNTAX     INTEGER {
                       other(1),  -- not used
                       true(2),   -- SNAP ID is 1
                       false(3)   -- SNAP ID is 0
                    }
                    MAX-ACCESS read-create
                    STATUS     current
                    DESCRIPTION
          
          
          
          
          
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                      "The SNAP ID used for Broadband low layer protocol
                      layer 3.  The value of this object is other(1) if
                      atmSigDescrParamBlliLayer3 is set to other(1)."
                    DEFVAL { other }
                    ::= { atmSigDescrParamEntry 15 }
          
                atmSigDescrParamBlliOuiPid OBJECT-TYPE
                    SYNTAX      OCTET STRING (SIZE(0..5))
                    MAX-ACCESS  read-create
                    STATUS      current
                    DESCRIPTION
                      "The OUI/PID encoding for Broadband low layer
                      protocol layer 3.  The value of this object is a
                      zero length string if atmSigDescrParamBlliLayer3
                      is set to none(1).  When used, it is always 5
                      octets with the most significant octet as the OUI
                      Octet 1 and the least significant octet as the PID
                      Octet 2."
                    DEFVAL { ''H }
                    ::= { atmSigDescrParamEntry 16 }
          
                 atmSigDescrParamRowStatus OBJECT-TYPE
                     SYNTAX      RowStatus
                     MAX-ACCESS  read-create
                     STATUS      current
                     DESCRIPTION
                      "This object is used to create and delete rows in
                      the atmSigDescrParamTable. Writable values are:
                      -'createAndWait' which allows manager to create an
                      entry first and fill in the parameters later.
                      -'active' which allows manager to set the entry to
                      be available to users.  -'destroy' which allows
                      manager to delete an entry from this table.
                      Readable values are: -'createAndWait' which means
                      the entry is created but not available to be used.
                      -'active' means it is active and ready to be used
                      by agent or manager."
                    ::= { atmSigDescrParamEntry 17 }
          
          
          
          
          
          
          
          
          
          
          
          
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          -- ************************************************
          -- (7) ATM Miscellaneous Group
          
          -- This group contains information for interfaces
          -- supporting ATM Interfaces
          -- This group includes the following:
          -- 1. ATM VP General Information Table
          -- 2. ATM VC General Information Table
          
          atmMiscGroup OBJECT IDENTIFIER::= {
                                             atm2MIBObjects 7}
          
          
          -- 1. ATM VP General Information Table
          
          
              atmVplGenTable OBJECT-TYPE
                  SYNTAX           SEQUENCE OF AtmVplGenEntry
                  MAX-ACCESS       not-accessible
                  STATUS           current
                  DESCRIPTION
                      "General Information for each VP."
                  ::= { atmMiscGroup 1 }
          
          
              atmVplGenEntry OBJECT-TYPE
                  SYNTAX  AtmVplGenEntry
                  MAX-ACCESS  not-accessible
                  STATUS  current
                  DESCRIPTION
                      "An entry with general information about the ATM
                      VP."
                  AUGMENTS { atmVplEntry }
                  ::= { atmVplGenTable 1 }
          
          
              AtmVplGenEntry ::=
                  SEQUENCE {
          -- ATM Switch/Service/Host Group:                               +
                      atmVplGenCastType            INTEGER,               +
          -- ATM Loopback Testing Group:
                      atmVplGenSegmentEndPoint     INTEGER                |
          }
          
          
          
          
          
          
          
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              atmVplGenCastType    OBJECT-TYPE                            +
                  SYNTAX    INTEGER  {                                    +
                        point_to_point(1),                                +
                        point_to_multi_point_root(2),                     +
                        point_to_multi_point_leaf(3)                      +
                        }                                                 +
                  MAX-ACCESS     read-create                              +
                  STATUS         current                                  +
                  DESCRIPTION                                             +
                      "Vpl type is either a point to point connection or  +
                      point to multipoint root or leaf."                  +
              DEFVAL { point_to_point }                                   +
                  ::= { atmVplGenEntry 1 }                                +
          
              atmVplGenSegmentEndPoint OBJECT-TYPE
                  SYNTAX  INTEGER {
                                   isaVplSegmentEndPoint(1),
                                   notaVplSegmentEndPoint(2)
                                  }
                  MAX-ACCESS  read-create
                  STATUS  current
                  DESCRIPTION
                      "An indication of whether or not the VP interface
                      has been configured to represent a VPC Segment
                      End-Point. If the corresponding VP Link is a UNI,
                      the value of this object is permanently set to 1
                      (isaVplSegmentEndPoint). Otherwise, the default is
                      set to 2 (notaVplSegmentEndPoint)."
                  ::= { atmVplGenEntry 2 }                                |
          
          -- 2. ATM VC General Information Table
          
          
              atmVclGenTable OBJECT-TYPE
                  SYNTAX           SEQUENCE OF AtmVclGenEntry
                  MAX-ACCESS       not-accessible
                  STATUS           current
                  DESCRIPTION
                      "General Information for each VC."
                  ::= { atmMiscGroup 2 }
          
          
              atmVclGenEntry OBJECT-TYPE
                  SYNTAX  AtmVclGenEntry
                  MAX-ACCESS  not-accessible
          
          
          
          
          
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                  STATUS  current
                  DESCRIPTION
                      "An entry with general information about the ATM
                      VC."
                  AUGMENTS { atmVclEntry }
                  ::= { atmVclGenTable 1 }
          
          
              AtmVclGenEntry ::=
                  SEQUENCE {
              -- ATM Switch/Service/Host Group:
                    atmVclGenConnType         INTEGER,                    |
                    atmVclGenCastType         INTEGER,                    |
              -- ATM Host Signalling Group:
                    atmVclGenReceiveSigDescrIndex                         |
                                              AtmSigDescrParamIndex,
                    atmVclGenTransmitSigDescrIndex                        |
                                              AtmSigDescrParamIndex,
              -- ATM Loopback Testing Group:
                    atmVclGenSegmentEndPoint  INTEGER
          }
          
          
              atmVclGenConnType     OBJECT-TYPE                           |
                  SYNTAX      INTEGER {
                     pvc(1),             -- Permanent VC
                     svcIncoming(2),     -- Switched VC, incoming
                     svcOutgoing(3)      -- Switched VC, outgoing
                     }
                  MAX-ACCESS  read-create
                  STATUS      current
                  DESCRIPTION
                      "The type of the VCL.  Values for this object are
                      Permanent VC, incoming Switched VC, or outgoing
                      Switched VC.  This object cannot be modified once
                      created."
                  ::= { atmVclGenEntry 1 }
          
              atmVclGenCastType    OBJECT-TYPE                            |
                  SYNTAX    INTEGER  {                                    |
                             point_to_point(1),                           |
                             point_to_multi_point_root(2),                |
                             point_to_multi_point_leaf(3)                 |
                             }                                            |
                  MAX-ACCESS     read-create                              |
          
          
          
          
          
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                  STATUS         current                                  |
                  DESCRIPTION                                             |
                      "Vcl type is either a point to point connection or  |
                      point to multipoint root or leaf."                  |
              DEFVAL { point_to_point }                                   |
                  ::= { atmVclGenEntry 2 }                                |
          
              atmVclGenReceiveSigDescrIndex   OBJECT-TYPE                 |
                  SYNTAX            AtmSigDescrParamIndex
                  MAX-ACCESS        read-create
                  STATUS            current
                  DESCRIPTION
                      "The value of this object identifies the row in
                      the ATM Signalling Descriptor Parameter Table
                      which applies to the receive direction of this
                      VCL."
                  ::= { atmVclGenEntry 3 }                                |
          
              atmVclGenTransmitSigDescrIndex   OBJECT-TYPE                |
                  SYNTAX            AtmSigDescrParamIndex
                  MAX-ACCESS        read-create
                  STATUS            current
                  DESCRIPTION
                      "The value of this object identifies the row in
                      the ATM Signalling Descriptor Parameter Table
                      which applies to the transmit direction of this
                      VCL."
                  ::= { atmVclGenEntry 4 }                                |
          
              atmVclGenSegmentEndPoint OBJECT-TYPE
                  SYNTAX  INTEGER {
                                   isaVclSegmentEndPoint(1),
                                   notaVclSegmentEndPoint(2)
                                  }
                  MAX-ACCESS  read-create
                  STATUS  current
                  DESCRIPTION
                      "An indication of whether or not the VC interface
                      has been configured to represent a VCC Segment
                      End-Point. If the corresponding VC Link is a UNI,
                      the value of this object is permanently set to 1
                      (isaVclSegmentEndPoint). Otherwise, the default is
                      set to 2 (notaVclSegmentEndPoint)."
                  ::= { atmVclGenEntry 5 }                                |
          
          
          
          
          
          
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          -- ************************************************
          -- (8) ATM Loopback Testing Group
          
          -- This group contains information for interfaces
          -- supporting ATM Loopback Tests
          -- This group includes the following:
          -- 1. ATM Loopback Objects
          -- 2. List of ATM Loopback Test Types
          
          atmLoopbackTestGroup OBJECT IDENTIFIER::= {
                                             atm2MIBObjects 8}
          
          
          -- 1. ATM Loopback Objects
          --    The following objects are defined:
          --        atmLoopbackLocID
          --        atmLoopbackSrcID
          
          atmLoopbackLocID    OBJECT-TYPE
               SYNTAX         OCTET STRING(SIZE(0..16))
               MAX-ACCESS     read-write
               STATUS         current
               DESCRIPTION
                 "This parameter represents the identity of the ATM       |
                 device that is being requested to loopback the OAM       |
                 Loopback cell.  The default for this field is all 1's,   |
                 which would indicate a segment OAM Loopback Test.        |
                 Location Identifiers of less than 16 octets are left     |
                 justified, and padded with all '0's. This object is      |
                 required for the atmLoopbackVpLocationID and             |
                 atmLoopbackVcLocationID tests."
               DEFVAL        {  'ffffffffffffffffffffffffffffffff'H }
               ::= { atmLoopbackTestGroup 1 }
          
          atmLoopbackSrcID    OBJECT-TYPE
               SYNTAX         OCTET STRING(SIZE(0..16))
               MAX-ACCESS     read-write
               STATUS         current
               DESCRIPTION
                 "This optional parameter identifies the source (e.g.,
                 the switch) originating the Loopback cell.  The default
                 value of all '1's (binary) represents no identification
                 of the source.  Source Identifiers of less than 16
                 octets are left justified, and padded with all '0's."
               DEFVAL        { 'ffffffffffffffffffffffffffffffff'H}
          
          
          
          
          
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               ::= { atmLoopbackTestGroup 2 }
          
          -- 2. List of ATM Loopback Test Types
          -- The following loopback test types are defined:
          --      atmLoopbackVpE2e                                        |
          --      atmLoopbackVcE2e                                        |
          --      atmLoopbackVpSegment                                    |
          --      atmLoopbackVcSegment                                    |
          --      atmLoopbackVpLocationID                                 |
          --      atmLoopbackVcLocationID                                 |
          --      atmLoopbackVpServcInternal
          --      atmLoopbackVcServcInternal
          
          
          atmLoopbackTestTypes OBJECT IDENTIFIER ::= {
                                        atmLoopbackTestGroup 3 }
          
          
          atmLoopbackVpE2e  OBJECT-IDENTITY                               |
               STATUS       current
               DESCRIPTION
                 "This is an end-to-end loopback test performed on a      |
                 designated VP (Virtual Path).  To perform this test an   |
                 end-to-end loopback OAM cell is inserted at one of the   |
                 end-points of the designated VP connection (e.g., at a   |
                 host) via VCI=4 (the VCI value for VP OAM end-to-end     |
                 cells), travels to the other end-point of the VP         |
                 connection, and then loops back to the originating       |
                 end-point on the designated VP.  Success is achieved if  |
                 the loopback OAM cell returns to the originating end-    |
                 point within 5 seconds, otherwise, the test fails.
          
                 The manager-station can perform a loopback test by       |
                 making use of the Interface Test Table (ifTestTable)     |
                 defined in RFC 1573.  In order to run this test the      |
                 object type 'ifTestType' in the ifTestTable shall be     |
                 set to (atmLoopbackVpE2e.p) , where the subidentifier    |
                 'p' is the instance of the atmVplVpi corresponding to    |
                 the VP designated for the test.
          
                 Before starting a test, a manager-station must first     |
                 obtain 'ownership' of the entry in the ifTestTable for   |
                 the interface to be tested (follow procedure defined in  |
                 RFC 1573).  Once the manager-station obtains ownership,  |
                 a loopback test for a given interface can be invoked by  |
          
          
          
          
          
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                 first setting up parameters necessary for the loopback   |
                 test (e.g., p=1), and then setting the value of          |
                 'ifTestType' in the ifTestTable equal to                 |
                 'atmLoopbackVpE2e'.  This will cause the                 |
                 atmLoopbackVpE2e test to be invoked on the VP with       |
                 VPI=1.
          
                 After invoking a loopback test, wait for the test        |
                 completion by polling for the object 'ifTestResult'.  A  |
                 value of 'inProgress(3)' will result if the test is      |
                 still in progress.  Once the test is completed, the      |
                 object 'ifTestResult' will have a value of 'success(2)'  |
                 if the loopback OAM cell returned to the originator of   |
                 the test within 5 seconds, if not, a value of            |
                 'failed(7)' will result.  If the ATM system does not     |
                 support this type of loopback test, then a value of      |
                 'notSupported(4)' will be provided.  Other possible      |
                 values for the 'ifTestResult' object are                 |
                 'unAbleToRun(5)' and 'aborted(6)'."
               ::= { atmLoopbackTestTypes 1 }
          
          
          atmLoopbackVcE2e  OBJECT-IDENTITY                               |
               STATUS       current
               DESCRIPTION
                 "This is an end-to-end loopback test performed on a      |
                 designated VC (Virtual Channel).  To perform this test   |
                 an end-to-end loopback OAM cell is inserted at one of    |
                 the end-points of the designated VC connection (e.g.,    |
                 at a host) via PTI=5 (the PTI value used for VC OAM      |
                 end-to-end cells), travels to the other end-point of     |
                 the VC connection, and then loops back to the            |
                 originating end-point on the designated VC.  Success is  |
                 achieved if the loopback OAM cell returns to the         |
                 originating end-point within 5 seconds, otherwise, the   |
                 test fails.
          
                 The manager-station can perform a loopback test by       |
                 making use of the Interface Test Table (ifTestTable)     |
                 defined in RFC 1573.  In order to run this test the      |
                 object type 'ifTestType' in the ifTestTable shall be     |
                 set to (atmLoopbackVcE2e.p.c) , where the subidentifier  |
                 'p' is the instance of the atmVclVpi corresponding to    |
                 the VC designated for the test and the subidentifier     |
                 'c' is the instance of the atmVclVci corresponding to    |
          
          
          
          
          
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                 the VC designated for the test.
          
                 Before starting a test, a manager-station must first     |
                 obtain 'ownership' of the entry in the ifTestTable for   |
                 the interface to be tested (follow procedure defined in  |
                 RFC 1573).  Once the manager-station obtains ownership,  |
                 a loopback test for a given interface can be invoked by  |
                 first setting up parameters necessary for the loopback   |
                 test (e.g., p=1, c=33), and then setting the value of    |
                 'ifTestType' in the ifTestTable equal to                 |
                 'atmLoopbackVcE2e'.  This will cause the                 |
                 atmLoopbackVcE2e test to be invoked on the VC with       |
                 VPI=1 and VCI=33.
          
                 After invoking a loopback test, wait for the test        |
                 completion by polling for the object 'ifTestResult'.  A  |
                 value of 'inProgress(3)' will result if the test is      |
                 still in progress.  Once the test is completed, the      |
                 object 'ifTestResult' will have a value of 'success(2)'  |
                 if the loopback OAM cell returned to the originator of   |
                 the test within 5 seconds, if not, a value of            |
                 'failed(7)' will result.  If the ATM system does not     |
                 support this type of loopback test, then a value of      |
                 'notSupported(4)' will be provided.  Other possible      |
                 values for the 'ifTestResult' object are                 |
                 'unAbleToRun(5)' and 'aborted(6)'."
               ::= { atmLoopbackTestTypes 2 }
          
          
          atmLoopbackVpSegment  OBJECT-IDENTITY                           |
               STATUS           current
               DESCRIPTION
                 "This is a loopback test performed on a designated       |
                 segment of a VP (Virtual Path).  To perform this test a  |
                 segment OAM cell is inserted at one of the segment       |
                 end-points of the designated VP connection (e.g., at a   |
                 host) via VCI=3 (the VCI used for VP OAM segment         |
                 cells), travels across the segment on the designated VP  |
                 to the device pre-configured as the corresponding        |
                 segment end-point, and then loops back to the            |
                 originating segment end-point on the designated VP.      |
                 Success is achieved if the loopback OAM cell returns to  |
                 the originating end-point within 5 seconds, otherwise,   |
                 the test fails.  In order to use the                     |
                 atmLoopbackVpSegment test, a segment must be defined by  |
          
          
          
          
          
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                 setting up segment end-points using the                  |
                 atmVplGenSegmentEndPoint object from the                 |
                 atmVplGenTable.  The atmVplGenSegmentEndPoint is set to  |
                 isaVpSegmentEndPoint(1) for each segment end-point.      |
                 Note that this object is by default set to               |
                 isaVpSegmentEndPoint(1) if the atmVplTable supports one  |
                 end of a UNI.  In such a case, a UNI VP loopback test    |
                 would be achieved when the atmLoopbackVpSegment test     |
                 was initiated over the UNI.
          
                 The manager-station can perform a loopback test by       |
                 making use of the Interface Test Table (ifTestTable)     |
                 defined in RFC 1573.  In order to run this test the      |
                 object type 'ifTestType' in the ifTestTable shall be     |
                 set to (atmLoopbackVpSegment.p) , where the              |
                 subidentifier 'p' is the instance of the atmVplVpi       |
                 corresponding to the VP designated for the test.
          
                 Before starting a test, a manager-station must first     |
                 obtain 'ownership' of the entry in the ifTestTable for   |
                 the interface to be tested (follow procedure defined in  |
                 RFC 1573).  Once the manager-station obtains ownership,  |
                 a loopback test for a given interface can be invoked by  |
                 first setting up parameters necessary for the loopback   |
                 test (e.g., p=1), and then setting the value of          |
                 'ifTestType' in the ifTestTable equal to                 |
                 'atmLoopbackVpSegment'.  This will cause the             |
                 atmLoopbackVpSegment test to be invoked on the VP with   |
                 VPI=1.
          
                 After invoking a loopback test, wait for the test        |
                 completion by polling for the object 'ifTestResult'.  A  |
                 value of 'inProgress(3)' will result if the test is      |
                 still in progress.  Once the test is completed, the      |
                 object 'ifTestResult' will have a value of 'success(2)'  |
                 if the loopback OAM cell returned to the originator of   |
                 the test within 5 seconds, if not, a value of            |
                 'failed(7)' will result.  If the ATM system does not     |
                 support this type of loopback test, then a value of      |
                 'notSupported(4)' will be provided.  Other possible      |
                 values for the 'ifTestResult' object are                 |
                 'unAbleToRun(5)' and 'aborted(6)'."
               ::= { atmLoopbackTestTypes 3 }
          
          
          
          
          
          
          
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          atmLoopbackVcSegment  OBJECT-IDENTITY                           |
               STATUS           current
               DESCRIPTION
                 "This is a loopback test performed on a designated       |
                 segment of a VC (Virtual Channel).  To perform this      |
                 test a segment OAM cell is inserted at one of the        |
                 segment end-points of the designated VC connection       |
                 (e.g., at a host) via PTI=4 (the PTI value used for VC   |
                 OAM segment cells), travels across the segment on the    |
                 designated VC to the device pre-configured as the        |
                 corresponding segment end-point, and then loops back to  |
                 the originating segment end-point on the designated VC.  |
                 Success is achieved if the loopback OAM cell returns to  |
                 the originating end-point within 5 seconds, otherwise,   |
                 the test fails.  In order to use the                     |
                 atmLoopbackVcSegment test, a segment must be defined by  |
                 setting up segment end-points using the                  |
                 atmVclGenSegmentEndPoint object from the                 |
                 atmVclGenTable.  The atmVclGenSegmentEndPoint is set to  |
                 isaVcSegmentEndPoint(1) for each segment end-point.      |
                 Note that this object is by default set to               |
                 isaVcSegmentEndPoint(1) if the atmVclTable supports one  |
                 end of a UNI.  In such a case, a UNI VC loopback test    |
                 would be achieved when the atmLoopbackVcSegment test     |
                 was initiated over the UNI.
          
                 The manager-station can perform a loopback test by       |
                 making use of the Interface Test Table (ifTestTable)     |
                 defined in RFC 1573.  In order to run this test the      |
                 object type 'ifTestType' in the ifTestTable shall be     |
                 set to (atmLoopbackVcSegment.p.c) , where the            |
                 subidentifier 'p' is the instance of the atmVclVpi       |
                 corresponding to the VP designated for the test and the  |
                 subidentifier 'c' is the instance of the atmVclVci       |
                 corresponding to the VC designated for the test.
          
                 Before starting a test, a manager-station must first     |
                 obtain 'ownership' of the entry in the ifTestTable for   |
                 the interface to be tested (follow procedure defined in  |
                 RFC 1573).  Once the manager-station obtains ownership,  |
                 a loopback test for a given interface can be invoked by  |
                 first setting up parameters necessary for the loopback   |
                 test (e.g., p=1, c=33), and then setting the value of    |
                 'ifTestType' in the ifTestTable equal to                 |
                 'atmLoopbackVcSegment'.  This will cause the             |
          
          
          
          
          
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                 atmLoopbackVcSegment test to be invoked on the VC with   |
                 VPI=1 and VCI=33.
          
                 After invoking a loopback test, wait for the test        |
                 completion by polling for the object 'ifTestResult'.  A  |
                 value of 'inProgress(3)' will result if the test is      |
                 still in progress.  Once the test is completed, the      |
                 object 'ifTestResult' will have a value of 'success(2)'  |
                 if the loopback OAM cell returned to the originator of   |
                 the test within 5 seconds, if not, a value of            |
                 'failed(7)' will result.  If the ATM system does not     |
                 support this type of loopback test, then a value of      |
                 'notSupported(4)' will be provided.  Other possible      |
                 values for the 'ifTestResult' object are                 |
                 'unAbleToRun(5)' and 'aborted(6)'."
               ::= { atmLoopbackTestTypes 4 }
          
          
          atmLoopbackVpLocationId  OBJECT-IDENTITY                        |
               STATUS              current
               DESCRIPTION
                 "This is a loopback test performed on a portion of a
                 designated VP segment.  To perform this test a loopback
                 OAM cell is inserted at a connection point of the
                 designated VP connection (e.g., the end-point or a
                 tandem point) with a value inserted in the Location
                 Identifier ID field of the OAM cell that corresponds to
                 the ATM device where the cell is to be looped back.
                 The loopback cell then travels through the VP
                 connection until it reaches the designated ATM device,
                 where it is looped back to the loopback cell insertion
                 point on the designated VP.  Success is achieved if the
                 loopback OAM cell returns to the originating point of
                 insertion within 5 seconds, otherwise, the test fails.
          
                 The manager-station can perform a loopback test by       |
                 making use of the Interface Test Table (ifTestTable)     |
                 defined in RFC 1573.  In order to run this test the      |
                 object type 'ifTestType' in the ifTestTable shall be     |
                 set to (atmLoopbackVpLocationId.p.d) , where the         |
                 subidentifier 'p' is the instance of the atmVplVpi       |
                 corresponding to the VP designated for the test and 'd'  |
                 consists of 16 subidentifiers, where each subidentifier  |
                 corresponds to the value of a subsequent octet of the    |
                 Loopback Location ID defined in I.610[21] starting with  |
          
          
          
          
          
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                 the most significant octet.
          
                 Before starting a test, a manager-station must first     |
                 obtain 'ownership' of the entry in the ifTestTable for   |
                 the interface to be tested (follow procedure defined in  |
                 RFC 1573).  Once the manager-station obtains ownership,  |
                 a loopback test for a given interface can be invoked by  |
                 first setting up parameters necessary for the loopback   |
                 test (e.g., p=1, d=AAAABBBBCCCCDDDD), and then setting   |
                 the value of 'ifTestType' in the ifTestTable equal to    |
                 'atmLoopbackVpLocationId'.  This will cause the          |
                 atmLoopbackVpLocationId test to be invoked on the VP     |
                 with VPI=1 and looped back at loopback location ID=      |
                 AAAABBBBCCCCDDDD.
          
                 After invoking a loopback test, wait for the test        |
                 completion by polling for the object 'ifTestResult'.  A  |
                 value of 'inProgress(3)' will result if the test is      |
                 still in progress.  Once the test is completed, the      |
                 object 'ifTestResult' will have a value of 'success(2)'  |
                 if the loopback OAM cell returned to the originator of   |
                 the test within 5 seconds, if not, a value of            |
                 'failed(7)' will result.  If the ATM system does not     |
                 support this type of loopback test, then a value of      |
                 'notSupported(4)' will be provided.  Other possible      |
                 values for the 'ifTestResult' object are                 |
                 'unAbleToRun(5)' and 'aborted(6)'."
               ::= { atmLoopbackTestTypes 5 }
          
          
          atmLoopbackVcLocationId  OBJECT-IDENTITY                        |
               STATUS              current
               DESCRIPTION
                 "This is a loopback test performed on a portion of a
                 designated VC Segment.  To perform this test a loopback
                 OAM cell is inserted at a connection point of the
                 designated VC connection (e.g., the end-point or a
                 tandem point) with a value inserted in the Location
                 Identifier ID field of the OAM cell that corresponds to
                 the ATM device where the cell is to be looped back.
                 The loopback cell then travels through the VC
                 connection until it reaches the designated ATM device,
                 where it is looped back to the loopback cell insertion
                 point on the designated VC.  Success is achieved if the
                 loopback OAM cell returns to the originating point of
          
          
          
          
          
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                 insertion within 5 seconds, otherwise, the test fails.
          
                 The manager-station can perform a loopback test by       |
                 making use of the Interface Test Table (ifTestTable)     |
                 defined in RFC 1573.  In order to run this test the      |
                 object type 'ifTestType' in the ifTestTable shall be     |
                 set to (atmLoopbackVcLocationId.p.c.d) , where the       |
                 subidentifier 'p' is the instance of the atmVclVpi       |
                 corresponding to the VC designated for the test, the     |
                 subidentifier 'c' is the instance of the atmVclVci       |
                 corresponding to the VC designated for the test, and     |
                 'd' consists of 16 subidentifiers, where each            |
                 subidentifier corresponds to the value of a subsequent   |
                 octet of the Loopback Location ID defined in I.610[21]   |
                 starting with the most significant octet.
          
                 Before starting a test, a manager-station must first     |
                 obtain 'ownership' of the entry in the ifTestTable for   |
                 the interface to be tested (follow procedure defined in  |
                 RFC 1573).  Once the manager-station obtains ownership,  |
                 a loopback test for a given interface can be invoked by  |
                 first setting up parameters necessary for the loopback   |
                 test (e.g., p=1, c=33, d= AAAABBBBCCCCDDDD), and then    |
                 setting the value of 'ifTestType' in the ifTestTable     |
                 equal to 'atmLoopbackVcLocationId'.  This will cause     |
                 the atmLoopbackVcLocationId test to be invoked on the    |
                 VC with VPI=1/VCI=33 and looped back at loopback         |
                 location ID= AAAABBBBCCCCDDDD.
          
                 After invoking a loopback test, wait for the test        |
                 completion by polling for the object 'ifTestResult'.  A  |
                 value of 'inProgress(3)' will result if the test is      |
                 still in progress.  Once the test is completed, the      |
                 object 'ifTestResult' will have a value of 'success(2)'  |
                 if the loopback OAM cell returned to the originator of   |
                 the test within 5 seconds, if not, a value of            |
                 'failed(7)' will result.  If the ATM system does not     |
                 support this type of loopback test, then a value of      |
                 'notSupported(4)' will be provided.  Other possible      |
                 values for the 'ifTestResult' object are                 |
                 'unAbleToRun(5)' and 'aborted(6)'."
               ::= { atmLoopbackTestTypes 6 }
          
          atmLoopbackVpServcInternal  OBJECT-IDENTITY
               STATUS              current
          
          
          
          
          
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               DESCRIPTION
                 "This is a loopback test that the manager requests an    |
                 agent to perform over the managed resource's internal    |
                 portion of a designated VP (i.e., between the ingress    |
                 and egress interfaces of the VP connection).  The agent  |
                 is provided with the Ingress VPI, Egress Interface, and  |
                 Egress VPI in order to run this internal test.  This     |
                 test may be useful in proxy situations where the proxy   |
                 agent represents a network.  Implementations of this     |
                 test may be specific to the managed resource.  One       |
                 implemenation in a managed network may be as follows,    |
                 the managed network inserts a segment loopback OAM cell  |
                 at the network internal segment end-point                |
                 (corresponding to the ingress connection point) for the  |
                 designated VP connection.  The loopback cell then        |
                 travels through the network's portion of the VP          |
                 connection until it reaches the networks connection      |
                 point to the egress, where it is looped back to the      |
                 network's cell insertion point on the designated VP.     |
                 Success is achieved if the loopback OAM cell returns to  |
                 the originating internal network segment end-point       |
                 within 5 seconds, otherwise, the test fails.
          
                 The manager-station can perform a loopback test by
                 making use of the Interface Test Table (ifTestTable)
                 defined in RFC 1573.  In order to run this test the
                 object type 'ifTestType' in the ifTestTable shall be
                 set to (atmLoopbackVpServcInternal.pi.ie.pe) , where
                 the subidentifier 'pi' is the instance of the atmVplVpi
                 for the ingress corresponding to the VP designated for
                 the test, the subidentifier 'ie' is the instance of the
                 ifIndex for the egress corresponding to the VP
                 designated for the test, and 'pe' is the instance of
                 the atmVplVpi corresponding to the egress for the VP
                 designated for this test.
          
                 Before starting a test, a manager-station must first
                 obtain 'ownership' of the entry in the ifTestTable for
                 the interface to be tested (follow procedure defined in
                 RFC 1573).  Once the manager-station obtains ownership,
                 a request is sent to the network to initiate the
                 network loopback test on the ingress interface
                 (ifIndex=2) along with the necessary parameters (e.g.,
                 pi=1, ie=4, pe=2), and then setting the value of
                 'ifTestType.2' in the ifTestTable equal to
          
          
          
          
          
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                 'atmLoopbackVpServcInternal'.  This will cause the
                 atmLoopbackVpServcInternal test to be invoked on the
                 network's internal section of the VP between the
                 ingress interface (ifIndex=2) with VPI=1 and the egress
                 interface with ifIndex=4 and VPI=2.
          
                 After invoking a loopback test, wait for the test        |
                 completion by polling for the object 'ifTestResult'.  A  |
                 value of 'inProgress(3)' will result if the test is      |
                 still in progress.  Once the test is completed, the      |
                 object 'ifTestResult' will have a value of 'success(2)'  |
                 if the loopback OAM cell returned to the originator of   |
                 the test within 5 seconds, if not, a value of            |
                 'failed(7)' will result.  If the ATM system does not     |
                 support this type of loopback test, then a value of      |
                 'notSupported(4)' will be provided.  Other possible      |
                 values for the 'ifTestResult' object are                 |
                 'unAbleToRun(5)' and 'aborted(6)'."
               ::= { atmLoopbackTestTypes 7 }
          
          atmLoopbackVcServcInternal  OBJECT-IDENTITY
               STATUS              current
               DESCRIPTION
                 "This is a loopback test that the manager requests an    |
                 agent to perform over the managed resource's internal    |
                 portion of a designated VC (i.e., between the ingress    |
                 and egress interfaces of the VC connection).  The agent  |
                 is provided with the Ingress VPI, Ingress VCI, Egress    |
                 Interface, Egress VPI, and Egress VCI in order to run    |
                 this internal test.  This test may be useful in proxy    |
                 situations where the proxy agent represents a network.   |
                 Implementations of this test may be specific to the      |
                 managed resource.  One implemenation in a managed        |
                 network may be as follows, the managed network inserts   |
                 a segment loopback OAM cell at the network internal      |
                 segment end-point (corresponding to the ingress          |
                 connection point) for the designated VC connection.      |
                 The loopback cell then travels through the network's     |
                 portion of the VC connection until it reaches the        |
                 networks connection point to the egress, where it is     |
                 looped back to the network's cell insertion point on     |
                 the designated VC.  Success is achieved if the loopback  |
                 OAM cell returns to the originating internal network     |
                 segment end-point within 5 seconds, otherwise, the test  |
                 fails.
          
          
          
          
          
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                 The manager-station can perform a loopback test by
                 making use of the Interface Test Table (ifTestTable)
                 defined in RFC 1573.  In order to run this test the
                 object type 'ifTestType' in the ifTestTable shall be
                 set to (atmLoopbackVcServcInternal.pi.ci.ie.pe.ce) ,
                 where the subidentifier 'pi' is the instance of the
                 atmVclVpi for the ingress corresponding to the VC
                 designated for the test, the subidentifier 'ci' is the
                 instance of the atmVclVci for the ingress corresponding
                 to the VC designated for the test, the subidentifier
                 'ie' is the instance of the ifIndex for the egress
                 corresponding to the VC designated for the test, 'pe'
                 is the instance of the atmVclVpi corresponding to the
                 egress for the VC designated for this test, and 'ce' is
                 the instance of the atmVclVci corresponding to the
                 egress for the VC designated for this test.
          
                 Before starting a test, a manager-station must first
                 obtain 'ownership' of the entry in the ifTestTable for
                 the interface to be tested (follow procedure defined in
                 RFC 1573).  Once the manager-station obtains ownership,
                 a request is sent to the network to initiate the
                 network loopback test on the ingress interface
                 (ifIndex=2) along with the necessary parameters (e.g.,
                 pi=1, ci=33, ie=4, pe=2, ce=41), and then setting the
                 value of 'ifTestType.2' in the ifTestTable equal to
                 'atmLoopbackVcServcInternal'.  This will cause the
                 atmLoopbackVcServcInternal test to be invoked on the
                 network's internal section of the VC between the
                 ingress interface (ifIndex=2) with VPI=1/VCI=33 and the
                 egress interface with ifIndex=4 and VPI=2/VCI=41.
          
                 After invoking a loopback test, wait for the test        |
                 completion by polling for the object 'ifTestResult'.  A  |
                 value of 'inProgress(3)' will result if the test is      |
                 still in progress.  Once the test is completed, the      |
                 object 'ifTestResult' will have a value of 'success(2)'  |
                 if the loopback OAM cell returned to the originator of   |
                 the test within 5 seconds, if not, a value of            |
                 'failed(7)' will result.  If the ATM system does not     |
                 support this type of loopback test, then a value of      |
                 'notSupported(4)' will be provided.  Other possible      |
                 values for the 'ifTestResult' object are                 |
                 'unAbleToRun(5)' and 'aborted(6)'."
               ::= { atmLoopbackTestTypes 8 }
          
          
          
          
          
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          -- ************************************************
          
          -- Conformance Information
          
          atm2MIBConformance   OBJECT IDENTIFIER ::= {atm2MIB 2}
          
          atm2MIBGroups        OBJECT IDENTIFIER
                           ::= {atm2MIBConformance 1}
          
          atm2MIBCompliances   OBJECT IDENTIFIER
                           ::= {atm2MIBConformance 2}
          
          -- Compliance Statements
          
          atm2MIBCompliance   MODULE-COMPLIANCE
               STATUS         current
               DESCRIPTION
                 "The compliance statement for SNMP entities which
                 represent ATM interfaces.  The compliance statements
                 are used to determine if a particular group or object
                 applies to hosts, networks/switches, or both."
          
               MODULE  -- this module
          
                 MANDATORY-GROUPS  { atmSwitchServcHostGroup }
          
          -- Objects in the ATM Switch/Service/Host Group
          
          OBJECT      atmVclGenConnType                                   |
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required.  This object is         |
                 required for ATM systems that support SVCs and PVCs for  |
                 ATM."
          
          OBJECT      atmVclGenCastType                                   +
          MIN-ACCESS  read-only                                           +
          DESCRIPTION                                                     +
                   "Write access is not required.  This object is         +
                 required for ATM systems that support SVCs and PVCs for  +
                 ATM."                                                    +
          
          OBJECT      atmVplGenCastType                                   +
          MIN-ACCESS  read-only                                           +
          DESCRIPTION                                                     +
          
          
          
          
          
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                   "Write access is not required.  This object is         +
                 required for ATM systems that support SVCs and PVCs for  +
                 ATM."                                                    +
          
          OBJECT      atmVclStatCellIns
          DESCRIPTION
                   "This object is mandatory for systems that are
                 supporting per VCC counters."
          
          OBJECT      atmVclStatCellOuts
          DESCRIPTION
                   "This object is mandatory for systems that are
                 supporting per VCC counters."
          
          OBJECT      atmVplStatCellIns
          DESCRIPTION
                   "This object is mandatory for systems that are
                 supporting per VPC counters."
          
          OBJECT      atmVplStatCellOuts
          DESCRIPTION
                   "This object is mandatory for systems that are
                 supporting per VPC counters."
          
          OBJECT      atmVplLogicalPortDef
          MIN-ACCESS  read-only
          DESCRIPTION
                   "This object is mandatory for systems support ATM
                 Logical Port interfaces."
          
          
          -- The ATM Switch/Service/Host SVC Group
          
          GROUP      atmSwitchServcHostSVCGroup
          DESCRIPTION
                   "This group is mandatory for a Switch/Service/Host
                 that implements ATM interfaces supporting SVCs."
          
          OBJECT      atmSigEntityRole
          MIN-ACCESS  read-only
          DESCRIPTION
            "Write access is not required"
          
          OBJECT      atmSigSuite
          MIN-ACCESS  read-only
          
          
          
          
          
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          DESCRIPTION
            "Write access is not required"
          
          
          -- The ATM Switch/Service Group
          
          GROUP      atmSwitchServcGroup
          DESCRIPTION
                   "This group is mandatory for a Switch/Service that
                 implements ATM interfaces."
          
          OBJECT      atmIfAdminAddrRowStatus
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required, and only one of the
                 six enumerated values for the RowStatus textual
                 convention need be supported, specifically: active(1)."
          
          
          -- The ATM Switch/Service SVC Group
          
          GROUP      atmSwitchServcSVCGroup
          DESCRIPTION
                   "This group is mandatory for a Switch/Service that
                 implements ATM interfaces supporting Switched Virtual
                 Connections (SVCs)."
          
          OBJECT      atmSigSupportClgPtyNumDel
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required. This parameter is       |
                 required for ATM systems that support only a value of    |
                 'disabled(2)' (i.e., the ATM systems does not support    |
                 the feature associated with the parameter)."
          
          OBJECT      atmSigSupportClgPtySubAddr
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required. This parameter is       |
                 required for ATM systems that support only a value of    |
                 'disabled(2)' (i.e., the ATM systems does not support    |
                 the feature associated with the parameter)."
          
          OBJECT      atmSigSupportCldPtySubAddr
          MIN-ACCESS  read-only
          
          
          
          
          
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          DESCRIPTION
                   "Write access is not required. This parameter is       |
                 required for ATM systems that support only a value of    |
                 'disabled(2)' (i.e., the ATM systems does not support    |
                 the feature associated with the parameter)."
          
          OBJECT      atmSigSupportHiLyrInfo
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required. This parameter is       |
                 required for ATM systems that support only a value of    |
                 'disabled(2)' (i.e., the ATM systems does not support    |
                 the feature associated with the parameter)."
          
          OBJECT      atmSigSupportLoLyrInfo
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required. This parameter is       |
                 required for ATM systems that support only a value of    |
                 'disabled(2)' (i.e., the ATM systems does not support    |
                 the feature associated with the parameter)."
          
          OBJECT      atmSigSupportRepeatInd
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required. This parameter is       |
                 required for ATM systems that support only a value of    |
                 'disabled(2)' (i.e., the ATM systems does not support    |
                 the feature associated with the parameter)."
          
          OBJECT      atmSigSupportAALInfo
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required. This parameter is       |
                 required for ATM systems that support only a value of    |
                 'disabled(2)' (i.e., the ATM systems does not support    |
                 the feature associated with the parameter)."
          
          OBJECT      atmSigSupportPrefCarrier
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSvcVpCrossConnectAdminStatus
          MIN-ACCESS  read-only
          
          
          
          
          
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          DESCRIPTION
                   "Write access is not required."                        |
          
          OBJECT      atmSvcVcCrossConnectAdminStatus
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."                        |
          
          
          -- The ATM Host Group
          
          GROUP      atmHOSTGroup
          DESCRIPTION
                   "This group is mandatory for a Host that implements
                 ATM interfaces."
          
          OBJECT      atmVclAddrBindType                                  |
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmVclAddrBindRowStatus
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required, and only one of the
                 six enumerated values for the RowStatus textual
                 convention need be supported, specifically: active(1)."
          
          
          -- The ATM Host SVC Group
          
          GROUP      atmHOSTSigGroup
          DESCRIPTION
                   "This group is mandatory for a Host that implements
                 ATM SVCs.  The MIN-ACCESS of each Descriptor in this
                 group should be read-create for PVCs and read-only for
                 SVCs."
          
          OBJECT      atmVclGenReceiveSigDescrIndex                       |
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmVclGenTransmitSigDescrIndex                      |
          MIN-ACCESS  read-only
          
          
          
          
          
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          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamAalType
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamAalMode
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamAalSscsType
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamBhliType
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamBhliInfo
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamBbcClass
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamBbcTraffic
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamBbcTiming
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamBbcClipping
          MIN-ACCESS  read-only
          
          
          
          
          
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          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamBbcConnConf
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamBlliLayer2
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamBlliLayer3
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamBlliPktSize
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamBlliSnapId
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamBlliOuiPid
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."
          
          OBJECT      atmSigDescrParamRowStatus
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required, and only one of the
                 six enumerated values for the RowStatus textual
                 convention need be supported, specifically: active(1)."
          
          
          -- The ATM Loopback Test Group
          
          GROUP      atmLoopbackGroup
          DESCRIPTION
          
          
          
          
          
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                   "This group is mandatory for those interfaces which
                 implement ATM loopback tests."
          
          OBJECT      atmLoopbackLocID
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required. This object is          |
                 required for ATM systems supporting the                  |
                 atmLoopbackVpLocationID and atmLoopbackVcLocationID      |
                 tests."                                                  |
          
          OBJECT      atmLoopbackSrcID
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required."                        |
          
          OBJECT      atmVplGenSegmentEndPoint
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required.  This object is
                 mandatory for systems that are supporting ATM loopback
                 tests."
          
          OBJECT      atmVclGenSegmentEndPoint
          MIN-ACCESS  read-only
          DESCRIPTION
                   "Write access is not required.  This object is
                 mandatory for systems that are supporting ATM loopback
                 tests."
          
          
          
                      ::= { atm2MIBCompliances 1 }
          
          -- **********************************************
          
          -- Units of Conformance
          
          
          atmSwitchServcHostGroup     OBJECT-GROUP
          
                 OBJECTS {
                      atmVclGenConnType,                                  |
                      atmVclGenCastType,                                  |
                      atmVplGenCastType,                                  |
          
          
          
          
          
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                      atmVclStatCellIns,
                      atmVclStatCellOuts,
                      atmVplStatCellIns,
                      atmVplStatCellOuts,
                      atmVplLogicalPortDef,
                      atmVplLogicalPortIndex}
                 STATUS    current
                 DESCRIPTION
                   "A collection of objects providing information
                    for a Switch/Service/Host that implements
                    ATM interfaces."
                 ::= { atm2MIBGroups 1 }
          
          
          atmSwitchServcHostSVCGroup     OBJECT-GROUP
          
                 OBJECTS {
                      atmSigEntityRole,
                      atmSigSuite,
                      atmSigType,
                      atmSigSSCOPConEvents,
                      atmSigSSCOPErrdPdus,
                      atmSigSetupAttempts,
                      atmSigUnavailRoutes,
                      atmSigUnavailResrcs,
                      atmSigCldPrtyProblems,
                      atmSigMsgErrors,
                      atmSigTimerExpireds,
                      atmSigRestarts,
                      atmSigInEstabls,
                      atmSigOutEstabls
                 }
                 STATUS    current
                 DESCRIPTION
                   "A collection of objects providing information
                    for a Switch/Service/Host that implements
                    ATM SVCs."
                 ::= { atm2MIBGroups 2 }
          
          
          atmSwitchServcGroup     OBJECT-GROUP
          
                 OBJECTS {
                      atmIfAdminAddrRowStatus}
                 STATUS    current
          
          
          
          
          
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                 DESCRIPTION
                   "A collection of objects providing information
                    for a Switch/Service that implements ATM interfaces."
                 ::= { atm2MIBGroups 3 }
          
          
          atmSwitchServcSVCGroup     OBJECT-GROUP
          
                 OBJECTS {
                      atmSigSupportClgPtyNumDel,
                      atmSigSupportClgPtySubAddr,
                      atmSigSupportCldPtySubAddr,
                      atmSigSupportHiLyrInfo,
                      atmSigSupportLoLyrInfo,
                      atmSigSupportRepeatInd,
                      atmSigSupportAALInfo,
                      atmSigSupportPrefCarrier,
                      atmSvcVpCrossConnectAdminStatus,
                      atmSvcVpCrossConnectOperStatus,
                      atmSvcVpCrossConnectLastChange,
                      atmSvcVcCrossConnectAdminStatus,
                      atmSvcVcCrossConnectOperStatus,
                      atmSvcVcCrossConnectLastChange}
                 STATUS    current
                 DESCRIPTION
                   "A collection of objects providing information
                    for a Switch/Service that implements ATM SVCs."
                 ::= { atm2MIBGroups 4 }
          
          
          atmHOSTGroup     OBJECT-GROUP
          
                 OBJECTS {
                      atmVclAddrBindType,                                 -
                      atmVclAddrBindRowStatus,
                      atmAddrVclAddrType}                                 |
                 STATUS    current
                 DESCRIPTION
                   "A collection of objects providing information
                    for a Host that implements ATM interfaces."
                 ::= { atm2MIBGroups 5 }
          
          
          atmHOSTSigGroup     OBJECT-GROUP
          
          
          
          
          
          
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                 OBJECTS {
                      atmVclGenReceiveSigDescrIndex,                      |
                      atmVclGenTransmitSigDescrIndex,                     |
                      atmSigDescrParamAalType,
                      atmSigDescrParamAalMode,
                      atmSigDescrParamAalSscsType,
                      atmSigDescrParamBhliType,
                      atmSigDescrParamBhliInfo,
                      atmSigDescrParamBbcClass,
                      atmSigDescrParamBbcTraffic,
                      atmSigDescrParamBbcTiming,
                      atmSigDescrParamBbcClipping,
                      atmSigDescrParamBbcConnConf,
                      atmSigDescrParamBlliLayer2,
                      atmSigDescrParamBlliLayer3,
                      atmSigDescrParamBlliPktSize,
                      atmSigDescrParamBlliSnapId,
                      atmSigDescrParamBlliOuiPid,
                      atmSigDescrParamRowStatus}
                 STATUS    current
                 DESCRIPTION
                   "A collection of objects providing information
                    for a Host that implements ATM interfaces
                    supporting Switched Virtual Connections (SVCs)."
                 ::= { atm2MIBGroups 6 }
          
          
          atmLoopbackGroup     OBJECT-GROUP
          
                 OBJECTS {
                      atmLoopbackLocID,
                      atmLoopbackSrcID,
                      atmVplGenSegmentEndPoint,
                      atmVclGenSegmentEndPoint
                 }
                 STATUS    current
                 DESCRIPTION
                          "A collection of objects providing information
                        for Loopback Tests."
                ::= { atm2MIBGroups 7 }
          
          
          
          END
          
          
          
          
          
          
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          9.  Acknowledgments
          
          This document is a product of the AToMMIB Working Group.
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          10.  References
          
          [1]  Ahmed, M., Tesink, K., "Definitions of Managed Objects
               for ATM Management Version 8.0 using SMIv2", RFC 1695,
               Bell Communications Research, August 1994.
          
          [2]  Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
               "Structure of Management Information for version 2 of the
               Simple Network Management Protocol (SNMPv2)", RFC 1442,
               SNMP Research,Inc., Hughes LAN Systems, Dover Beach
               Consulting, Inc., Carnegie Mellon University, April 1993.
          
          [3]  McCloghrie, K., and M. Rose, Editors, "Management
               Information Base for Network Management of TCP/IP-based
               internets: MIB-II", STD 17, RFC 1213, Hughes LAN Systems,
               Performance Systems International, March 1991.
          
          [4]  Galvin, J., and K. McCloghrie, "Administrative Model for
               version 2 of the Simple Network Management Protocol
               (SNMPv2)", RFC 1445, Trusted Information Systems, Hughes
               LAN Systems, April 1993.
          
          [5]  Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
               "Protocol Operations for version 2 of the Simple Network
               Management Protocol (SNMPv2)", RFC 1448, SNMP
               Research,Inc., Hughes LAN Systems, Dover Beach
               Consulting, Inc., Carnegie Mellon University, April 1993.
          
          [6]  McCloghrie, K. and F. Kastenholz, "Evolution of the
               Interfaces Group of MIB-II", RFC 1573, Hughes LAN
               Systems, FTP Software, January 1994.
          
          [7]  Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
               "Textual Conventions for SNMPv2", RFC1443, SNMP
               Research,Inc., Hughes LAN Systems, Dover Beach
               Consulting, Inc., Carnegie Mellon University, April 1993.
          
          [8]  Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
               "Conformance Statements for SNMPv2", RFC1444, SNMP
               Research,Inc., Hughes LAN Systems, Dover Beach
               Consulting, Inc., Carnegie Mellon University, April 1993.
          
          [9]  ATM Forum, "ATM User-Network Interface, Version 3.0 (UNI
               3.0) Specification, Part I", 1994.
          
          
          
          
          
          
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          [10] ATM Forum, "ATM User-Network Interface, Version 3.1 (UNI
               3.1) Specification, Part I", November 1994.
          
          [11] ITU-T Recommendation Q.2931, "Broadband Integrated
               Service Digital Network (B-ISDN) Digital Service
               Signalling System No.2 (DSS2) User-Network Interface
               (UNI) Layer 3 Specification for Basic Call/Connection
               Control", September 1994.
          
          [12] ATM Forum 94-0471R4, "P-NNI Draft Specification, P-NNI
               SWG", November 1994.
          
          [13] ITU-T Draft Recommendation Q.2110, "Broadband Integrated
               Service Digital Network (B-ISDN) - ATM Adaptation Layer -
               Service Specific Connection Oriented Protocol (SSCOP)
               Specification", 1994.
          
          [14] Newton, T., "Baseline Text For LAN Emulation Client
               Management", ATM Forum Contribution 94-0737R1, Digital
               Equipment Corporation, January 1995.
          
          [15] Brown, T., Tesink, K., "Definitions of Managed Objects
               for SMDS Interfaces using SMIv2", RFC 1694, Bell
               Communications Research, August 1994.
          
          [16] ATM Forum, "ATM User-Network Interface, Version 4.0 (UNI
               4.0) Specification, Part I", 1995.
          
          [17] ITU-T Draft Recommendation Q.2961, "Broadband Integrated
               Service Digital Network (B-ISDN) Digital Service
               Signalling System No.2 (DSS2) Support of Additional
               Traffic Parameters", May 1995.
          
          [18] ITU-T Draft Recommendation Q.2971, "Broadband Integrated
               Service Digital Network (B-ISDN) Digital Service
               Signalling System No.2 (DSS2) User Network Interface
               Layer 3 Specification for Point-to-multipoint
               Call/connection Control", May 1995.
          
          [19] ATM Forum, "Interim Inter-switch Signaling Protocol
               (IISP)Specification, Version 1.0", af-pnni-0026.000,
               December 1994.
          
          [20] ATM Forum B-ICI Recommendation, - Text to be provided
          
          
          
          
          
          
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          [21] ITU-T Recommendation I.610, "Broadband Integrated Service
               Digital Network (B-ISDN) Operation and Maintenance
               Principles and Functions", July 1995.
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
          
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          11.  Security Considerations
          
          Security issues are not discussed in this memo.
          
          
          12.  Authors' Addresses
          
                            Faye Ly
                            BayNetworks Communications, Inc.
                            4401 Great America Pkwy
                            Santa Clara, CA 95052
                            Phone: (408) 764-1702                         |
                            EMail: faye@Baynetworks.COM
          
                            Michael Noto
                            Bell Communications Research
                            Room 1E-348
                            331 Newman Springs Road
                            P.O. Box 7020
                            Red Bank, NJ  07701-7020
                            Phone: (908) 758-5104
                            EMail: noto@cc.bellcore.com
          
                            Andrew Smith
                            BayNetworks Communications, Inc.
                            4401 Great America Pkwy
                            Santa Clara, CA 95052
                            Phone: (408) 764-1574
                            EMail: asmith@Baynetworks.COM
          
                            Kaj Tesink
                            Bell Communications Research
                            Room 1A-427
                            331 Newman Springs Road
                            P.O. Box 7020
                            Red Bank, NJ  07701-7020
                            Phone: (908) 758-5254
                            EMail: kaj@cc.bellcore.com
          
          
          
          
          
          
          
          
          
          
          
          
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          Table of Contents
          
          
          1 Status of this Memo ...................................    1
          2 Introduction ..........................................    2
          3 The SNMPv2 Network Management Framework ...............    2
          4 Object Definitions ....................................    3
          5 Overview ..............................................    3
          5.1 Background ..........................................    3
          5.2 Supported Functions .................................    4
          5.2.1 ATM Switch/Service/Host Support ...................    5
          5.2.1.1 ATM Switch/Service/Host Group ...................    5
          5.2.1.1.1 ATM VCL Statistics Table ......................    5
          5.2.1.1.2 ATM VPL Statistics Table ......................    5
          5.2.1.1.3 ATM Logical Port Interface ....................    5
          5.2.1.1.3.1 ATM Logical Port Interface Table ............    6
          5.2.1.2 ATM Switch/Service/Host SVC Group ...............    8
          5.2.1.2.1 ATM Interface Signalling Configuration ........    8
          5.2.1.2.2 SSCOP .........................................    8
          5.2.1.2.3 Unsupported Service Failures ..................    8
          5.2.1.2.4 ATM Signalling Layer Protocol Errors ..........    9
          5.2.1.2.5 UNI Signalling Sub-layer Statistics ...........    9
          5.2.1.2.6 Indexing of the ATM Signalling Table ..........    9
          5.2.2 ATM Switch/Service Support ........................   13
          5.2.2.1 ATM Switch/Service Group ........................   13
          5.2.2.1.1 ATM Interface Administrative  Address  Table
               ....................................................   13
          5.2.2.2 ATM Switch/Service SVC Group ....................   14
          5.2.2.2.1 ATM UNI SVC Information Element Support .......   14
          5.2.3 ATM Host Support ..................................   14
          5.2.3.1 ATM Host Group ..................................   14
          5.2.3.1.1 VCL Extension Table ...........................   14
          5.2.3.1.2 ATM VPI/VCI to Address Mapping Table ..........   15
          5.2.3.1.3 ATM Address to VPI/VCI Mapping Table ..........   15
          5.2.3.2 ATM Host SVC Group ..............................   15
          5.2.3.2.1 Signalling Descriptor Parameter Table .........   15
          5.2.4 ATM Testing Support ...............................   16
          5.2.4.1 ATM Loopback Testing Group ......................   16
          6 Valid Address Sets / Default Address ..................   20
          7 Configuration of VPLs, VCLs, and Cross-Connects .......   20
          8 Definitions ...........................................   21
          9 Acknowledgments .......................................   93
          10 References ...........................................   94
          11 Security Considerations ..............................   97
          12 Authors' Addresses ...................................   97
          
          
          
          
          
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