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Versions: 00 01 02 03 04 05 06 rfc2955                                  
Internet Draft      FR/ATM Service Interworking MIB        February 1999


                     Definitions of Managed Objects
                   for Monitoring and Controlling the
           Frame Relay/ATM PVC Service Interworking Function

                           February 20, 1999


                   draft-ieft-frnetmib-atmiwf-01.txt

                            Kenneth Rehbehn
                            Visual Networks
                      krehbehn@visualnetworks.com

                             Orly Nicklass
                     RAD Data Communications, Ltd.
                            Orly_n@rad.co.il

                            George Mouradian
                               AT&T Labs
                              gvm@att.com




                          Status of this Memo

   This document is an Internet-Draft and is in full conformance with
   all provisions of Section 10 of RFC2026.  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 draft documents 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 ``work in progress.''

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/ietf/1id-abstracts.txt

   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html.




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Abstract

   This memo defines a Management Information Base (MIB) for monitoring
   and controlling a service interworking function (IWF) for Permanent
   Virtual Connections (PVC) between Frame Relay and Asynchronous
   Transfer Mode (ATM) technologies.

Copyright Notice

   Copyright (C) The Internet Society (1999). All Rights Reserved.




































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   Table of Contents


   1 The SNMPv2 Network Management Framework ......................    4
   2 Object Definitions ...........................................    5
   3 Overview .....................................................    6
   3.1 Frame Relay/ATM Service Interworking .......................    6
   4 Object Definitions ...........................................    7
   4.1 The FR/ATM PVC Service IWF Connection Group ................    9
   4.2 The FR/ATM PVC Service IWF Connection Descriptor Group .....   15
   5 Frame Relay/ATM PVC Service Interworking TRAP ................   21
   6 Conformance Information ......................................   22
   6.1 Compliance Statement For Equipment .........................   22
   6.2 Compliance Statement For Service (CNM Interface) ...........   24
   6.3 Units of Conformance .......................................   26
   6.3.1 Basic FR/ATM IWF PVC Connection Group ....................   26
   6.3.2 FR/ATM IWF PVC Connection Descriptor Group ...............   26
   6.3.3 Notification Group .......................................   27
   7 Acknowledgments ..............................................   28
   8 References ...................................................   29
   9 Security Considerations ......................................   30
   10 Authors' Addresses ..........................................   30
   11 Copyright Section ...........................................   31























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1.  The SNMPv2 Network Management Framework


   The SNMP Network Management Framework presently consists of three
   major components.  They are:

   o    the SMI, described in RFC 1902 [1] - the mechanisms used for
        describing and naming objects for the purpose of management.

   o    the MIB-II, STD 17, RFC 1213 [2] - the core set of managed
        objects for the Internet suite of protocols.

   o    the protocol, RFC 1157 [3] and/or RFC 1905 [4], - the protocol
        for accessing managed objects.

   The Framework permits new objects to be defined for the
   purpose of experimentation and evaluation.





























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2.  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 refer to the
   object type.



































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3.  Overview

   This document defines a Management Information Base (MIB) for
   monitoring and controlling a service interworking function (IWF) for
   Permanent Virtual Connections (PVC) between Frame Relay and
   Asynchronous Transfer Mode (ATM) technologies.  The agreements on
   which this MIB is based were reached jointly by the Frame Relay Forum
   and the ATM Forum and are documented in the Frame Relay Forum
   Document FRF.8 [9].

   In the future, the MIB defined in this document may be used or
   extended for service interworking using Switched Virtual Connections.


3.1.  Frame Relay/ATM Service Interworking

   Service interworking applies when a Frame Relay service user
   interworks with an ATM service user, the ATM service user performs no
   frame relaying service-specific functions, and the frame relay
   service user performs no ATM service-specific functions.  The
   optional translation of particular higher layer protocols to satisfy
   the requirements of end-systems may also be implemented.

   Consult FRF.8 [9] for more details.






















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4.  Object Definitions

 FR-ATM-PVC-SERVICE-INTERWORKING-MIB DEFINITIONS ::= BEGIN

 IMPORTS
               MODULE-IDENTITY, OBJECT-TYPE,
               NOTIFICATION-TYPE,
               transmission, Integer32, BITS, Counter32      FROM SNMPv2-SMI

               TEXTUAL-CONVENTION, RowStatus,
               TimeStamp                                     FROM SNMPv2-TC

               MODULE-COMPLIANCE, OBJECT-GROUP,
               NOTIFICATION-GROUP                            FROM SNMPv2-CONF

               AtmVpIdentifier, AtmVcIdentifier              FROM ATM-TC-MIB

               InterfaceIndex                                FROM IF-MIB;

          frAtmIwfMIB MODULE-IDENTITY
              LAST-UPDATED "9902200000Z"
              ORGANIZATION "IETF Frame Relay Service MIB (frnetmib) Working Group"
              CONTACT-INFO
                "Kenneth Rehbehn
                 Postal: Visual Networks
                         2092 Gaither Road
                         Rockville, MD USA  20850
                 Tel:    +1 301 296 2325
                 Fax:    +1 301 296 2302
                 E-mail: krehbehn@visualnetworks.com

                 Orly Nicklass
                 Postal: RAD Data Communications Ltd.
                         12 Hanechoshet St.
                         Tel Aviv 69710
                         Israel
                 Tel:    +972 (3) 6459588
                 Fax:    +972 (3) 6472675
                 E-mail: orly@radmail.rad.co.il

                 George Mouradian
                 Postal: AT&T Labs, Room 1G-325
                         101 Crawfords Corner Road
                         Holmdel, NJ 07733-3030
                 Tel:    +1 908 949 7671
                 Email:  gvm@att.com"


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              DESCRIPTION
                      "The MIB module for monitoring and controlling the
                      Frame Relay/ATM PVC Service Interworking
                      Function."
              ::= { transmission xxx }

          --
          -- Object Identifiers
          --
             frAtmIwfMIBObjects      OBJECT IDENTIFIER ::= { frAtmIwfMIB 1 }

             frAtmIwfTraps           OBJECT IDENTIFIER ::= { frAtmIwfMIB 2 }
             frAtmIwfTrapsPrefix     OBJECT IDENTIFIER ::= { frAtmIwfTraps 0 }

             frAtmIwfConformance     OBJECT IDENTIFIER ::= { frAtmIwfMIB 3 }
             frAtmIwfGroups          OBJECT IDENTIFIER ::= { frAtmIwfConformance 1 }
             frAtmIwfCompliances     OBJECT IDENTIFIER ::= { frAtmIwfConformance 2 }

          --
          -- Textual Conventions
          --

             Dlci  ::= TEXTUAL-CONVENTION
                 STATUS      current
                 DESCRIPTION
                     "This data type is a DLCI for a PVC segment end-point."
                 SYNTAX      Integer32


















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          --
          --  The FR/ATM PVC Service IWF Group
          --
          --      The Frame Relay/ATM PVC Service Interworking Function
          --      Connection Table contains all connections utilizing
          --      the interworking function.
          --

          frAtmIwfConnIndexNext OBJECT-TYPE
               SYNTAX         Integer32 (0..2147483647)
               MAX-ACCESS     read-only
               STATUS         current
               DESCRIPTION
                      "This object contains an appropriate value to be
                      used for frAtmIwfConnIndex  when creating entries
                      in the frAtmIwfConnectionTable. The value 0
                      indicates that no unassigned entries are
                      available. To obtain the frAtmIwfConnIndexNext
                      value for a new entry, the manager issues a
                      management protocol retrieval operation to obtain
                      the current value of this object.  After each
                      retrieval, the agent should modify the value to
                      the next unassigned index."
               ::= { frAtmIwfMIBObjects 1 }

          frAtmIwfConnectionTable OBJECT-TYPE
              SYNTAX      SEQUENCE OF FrAtmIwfConnectionEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                      "A table in which each row represents a Frame
                      Relay/ATM interworking connection."
              ::= { frAtmIwfMIBObjects 2 }

          frAtmIwfConnectionEntry OBJECT-TYPE
              SYNTAX      FrAtmIwfConnectionEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                      "The FrAtmIwfConnectionEntry provides an entry for
                      an interworking connection between a Frame Relay
                      PVC and one or more ATM PVCs.  A single Frame
                      Relay PVC connected to a single ATM PVC is refered
                      to as a `point-to-point' connection and is
                      represented by a single row in the FR/ATM IWF


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                      Connection Table.  The case of a single Frame
                      Relay PVC connected to multiple ATM PVCs is
                      refered to as a `point-to-multipoint' connection
                      and is represented by multiple rows in the FR/ATM
                      IWF Connection Table.

                      The object frAtmIwfConnIndex uniquely identifies
                      each point-to-point or point-to-multipoint
                      connection.  The manager obtains the
                      frAtmIwfConnIndex value for by reading the
                      frAtmIwfConnIndexNext object.

                      After a frAtmIwfConnIndex is assigned for the
                      connection, the manager creates one or more rows
                      in the Cross Connect Table; one for each cross-
                      connection between the frame relay PVC and an ATM
                      PVC. In the case of `point-to-multipoint'
                      connections, all rows are indexed by the same
                      frAtmIwfConnIndex value and MUST refer to the same
                      frame relay PVC.  An entry can be created only
                      when the Frame Relay PVC and at least one ATM PVC
                      exist.

                      A row can be established by one-step set-request
                      with all required parameter values and
                      frAtmIwfConnRowStatus set to createAndGo(4). The
                      Agent should perform all error checking as needed.
                      A pair of cross-connected PVCs, as identified by a
                      particular value of the indexes, is released by
                      setting frAtmIwfConnRowStatus to destroy(6). The
                      Agent may release all associated resources. The
                      manager may remove the related PVCs thereafter."
              INDEX   { frAtmIwfConnIndex,
                        frAtmIwfConnAtmPort,
                        frAtmIwfConnVpi,
                        frAtmIwfConnVci,
                        frAtmIwfConnFrPort,
                        frAtmIwfConnDlci
                      }
              ::= { frAtmIwfConnectionTable 1 }

          FrAtmIwfConnectionEntry ::=
              SEQUENCE {
                  frAtmIwfConnIndex                      Integer32,
                  frAtmIwfConnAtmPort                    InterfaceIndex,


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                  frAtmIwfConnVpi                        AtmVpIdentifier,
                  frAtmIwfConnVci                        AtmVcIdentifier,
                  frAtmIwfConnFrPort                     InterfaceIndex,
                  frAtmIwfConnDlci                       Dlci,
                  frAtmIwfConnRowStatus                  RowStatus,
                  frAtmIwfConnAdminStatus                INTEGER,
                  frAtmIwfConnAtm2FrOperStatus           INTEGER,
                  frAtmIwfConnAtm2FrLastChange           TimeStamp,
                  frAtmIwfConnFr2AtmOperStatus           INTEGER,
                  frAtmIwfConnFr2AtmLastChange           TimeStamp,
                  frAtmIwfConnUnrecognizedPayloadHeaders Counter32,
                  frAtmIwfConnectionDescriptor           Integer32
          }

          frAtmIwfConnIndex  OBJECT-TYPE
              SYNTAX      Integer32
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                      "A unique index to identify this interworking
                      connection."
              ::= { frAtmIwfConnectionEntry 1 }

          frAtmIwfConnAtmPort OBJECT-TYPE
              SYNTAX      InterfaceIndex
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                      "The index in the ifTable that identifies the ATM
                      port for this interworking connection."
              ::= { frAtmIwfConnectionEntry 2 }

          frAtmIwfConnVpi OBJECT-TYPE
              SYNTAX      AtmVpIdentifier
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                      "The VPI of the ATM PVC end point for this
                       interworking connection."
              ::= { frAtmIwfConnectionEntry 3 }

          frAtmIwfConnVci OBJECT-TYPE
              SYNTAX      AtmVcIdentifier
              MAX-ACCESS  not-accessible
              STATUS      current


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              DESCRIPTION
                      "The VCI of the ATM PVC end point for this
                      interworking
                       connection."
              ::= { frAtmIwfConnectionEntry 4 }

          frAtmIwfConnFrPort OBJECT-TYPE
              SYNTAX      InterfaceIndex
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                      "The index in the ifTable that identifies the
                      Frame Relay port for this interworking
                      connection."
              ::= { frAtmIwfConnectionEntry 5 }

          frAtmIwfConnDlci OBJECT-TYPE
              SYNTAX      Dlci
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                      "The DLCI that identifies the Frame Relay PVC end
                      point for this interworking connection."
              ::= { frAtmIwfConnectionEntry 6 }

          frAtmIwfConnRowStatus OBJECT-TYPE
              SYNTAX      RowStatus
              MAX-ACCESS  read-create
              STATUS      current
              DESCRIPTION
                      "The status of this table row. This entry is used
                      to create, change or delete a cross-connect. This
                      object can not be set to active(6) unless the
                      frAtmIwfConnAdminStatus exist in this row. To turn
                      on a cross-connect, the frAtmIwfConnAdminStatus is
                      set to up(1)."
              ::= { frAtmIwfConnectionEntry 7 }

          frAtmIwfConnAdminStatus OBJECT-TYPE
              SYNTAX      INTEGER { up(1), down(2) }
              MAX-ACCESS  read-create
              STATUS      current
              DESCRIPTION
                      "The desired operational state for this
                      interworking connection."


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              ::= { frAtmIwfConnectionEntry 8 }

          frAtmIwfConnAtm2FrOperStatus     OBJECT-TYPE
              SYNTAX      INTEGER { up(1), down(2) }
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                      "The current operational state of this
                      interworking connection in the direction from ATM
                      to FR end."
              ::= { frAtmIwfConnectionEntry 9 }

          frAtmIwfConnAtm2FrLastChange  OBJECT-TYPE
              SYNTAX      TimeStamp
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                      "The value of sysUpTime at the time this
                      interworking connection entered its current
                      operational state in the ATM to FR direction.  If
                      the current state was entered prior to the last
                      re-initialization of the local network management
                      subsystem, then this object contains a zero
                      value."
              ::= { frAtmIwfConnectionEntry 10 }

          frAtmIwfConnFr2AtmOperStatus     OBJECT-TYPE
              SYNTAX      INTEGER { up(1), down(2) }
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                      "The current operational state of this
                      interworking connection in the direction from FR
                      to ATM end."
              ::= { frAtmIwfConnectionEntry 11 }

          frAtmIwfConnFr2AtmLastChange  OBJECT-TYPE
              SYNTAX      TimeStamp
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                      "The value of sysUpTime at the time this
                      interworking connection entered its current
                      operational state in the FR to ATM direction.  If
                      the current state was entered prior to the last


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                      re-initialization of the local network management
                      subsystem, then this object contains a zero
                      value."
              ::= { frAtmIwfConnectionEntry 12 }

          frAtmIwfConnUnrecognizedPayloadHeaders OBJECT-TYPE
              SYNTAX      Counter32
              UNITS       "Frames"
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                      "This attribute counts the number of frames
                      discarded by the IWF because, while operating in
                      Translation Mode, the IWF is unable to decode the
                      incoming frame payload header according to the
                      mapping rules. (i.e., payload header not
                      recognized by the IWF).

                      When operating in Transparent Mode, the IWF must
                      return noSuchInstance."
              REFERENCE
                       "FRF.8 [9], Section 5.3.1"
              ::= { frAtmIwfConnectionEntry 13 }

          frAtmIwfConnectionDescriptor  OBJECT-TYPE
              SYNTAX      Integer32
              MAX-ACCESS  read-only
              STATUS      current
              DESCRIPTION
                      "The value represents a pointer to the relevant
                      descriptor in the IWF descriptor table."
              ::= { frAtmIwfConnectionEntry 14 }














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          --
          -- The FR/ATM PVC Service IWF Connection Descriptor Group
          --
          --     The Frame Relay/ATM PVC Service Interworking Function
          --     Connection Descriptor table.  A descriptor provides the
          --     attributes for a type of interworked connection.
          --

          frAtmIwfConnectionDescriptorIndexNext OBJECT-TYPE
               SYNTAX      Integer32 (0..2147483647)
               MAX-ACCESS  read-only
               STATUS      current
               DESCRIPTION
                      "This object contains an appropriate value to be
                      used for frAtmIwfConnectionDescriptorIndex  when
                      creating entries in the
                      frAtmIwfConnectionDescriptorTable. The value 0
                      indicates that no unassigned entries are
                      available. To obtain the
                      frAtmIwfConnectionDescriptorIndexNext value for a
                      new entry, the manager issues a management
                      protocol retrieval operation to obtain the current
                      value of this object.  After each retrieval, the
                      agent should modify the value to the next
                      unassigned index."
               ::= { frAtmIwfMIBObjects 3 }

          frAtmIwfConnectionDescriptorTable OBJECT-TYPE
              SYNTAX      SEQUENCE OF FrAtmIwfConnectionDescriptorEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                      "A table in which each row represents a descriptor
                      for one type of Frame Relay/ATM interworking
                      connection.  A descriptor may be assigned to zero
                      or more FR/ATM PVC service IWF connections."
              ::= { frAtmIwfMIBObjects 4 }

          frAtmIwfConnectionDescriptorEntry OBJECT-TYPE
              SYNTAX      FrAtmIwfConnectionDescriptorEntry
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                      "An entry for a descriptor in an interworking
                      connection between a Frame Relay PVC and an ATM


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                      PVC."
              INDEX   { frAtmIwfConnectionDescriptorIndex  }
              ::= { frAtmIwfConnectionDescriptorTable 1 }

          FrAtmIwfConnectionDescriptorEntry ::=
              SEQUENCE {
                  frAtmIwfConnectionDescriptorIndex      Integer32,
                  frAtmIwfConnDeToClpMappingMode         INTEGER,
                  frAtmIwfConnClpToDeMappingMode         INTEGER,
                  frAtmIwfConnCongestionMappingMode      INTEGER,
                  frAtmIwfConnEncapsulationMappingMode   INTEGER,
                  frAtmIwfConnEncapsulationMappings      BITS,
                  frAtmIwfConnFragAndReassEnabled        INTEGER,
                  frAtmIwfConnArpTranslationEnabled      INTEGER
          }

          frAtmIwfConnectionDescriptorIndex OBJECT-TYPE
              SYNTAX      Integer32
              MAX-ACCESS  not-accessible
              STATUS      current
              DESCRIPTION
                      "A unique value to identify a descriptor in the
                      table "
              ::= { frAtmIwfConnectionDescriptorEntry 1 }

          frAtmIwfConnDeToClpMappingMode OBJECT-TYPE
              SYNTAX      INTEGER {
                             mode1(1),
                             mode2Const0(2),
                             mode2Const1(3)
                          }
              MAX-ACCESS  read-write
              STATUS      current
              DESCRIPTION
                      "This object describes which mode of translation
                      is in use for loss priority mapping in the Frame
                      Relay to ATM direction.

                      mode1           = the DE field in the Q.922 core frame
                                        shall be mapped to the ATM CLP filed
                                        of every cell generated by the
                                        segmentation process of the AAL5
                                        PDU  containing the information of
                                        that frame.


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                      mode2Contst0    = the ATM CLP filed of every cell
                                        generated by the segmentation process
                                        of the AAL5 PDU  containing the
                                        information of that frame shall be
                                        set to constant 0.

                      mode2Contst1    = the ATM CLP filed of every cell
                                        generated by the segmentation process
                                        of the AAL5 PDU  containing the
                                        information of that frame shall be set
                                        to constant 1."
              REFERENCE
                       "FRF.8 [9], Section 4.2.1"
              DEFVAL { mode1 }
              ::= { frAtmIwfConnectionDescriptorEntry 2 }

          frAtmIwfConnClpToDeMappingMode OBJECT-TYPE
              SYNTAX      INTEGER {
                            mode1(1),
                            mode2Const0(2),
                            mode2Const1(3)
                          }
              MAX-ACCESS  read-write
              STATUS      current
              DESCRIPTION
                      "This object describes which mode of translation
                      is in use for loss priority mapping in the ATM to
                      Frame Relay direction.

                      mode1       = if one or more cells in a frame has its CLP
                                    field set, the DE field of the Q.922 core
                                    frame should be set.

                      mode2Const0 = the DE field of the Q.922 core frame should
                                    be set to constant 0.

                      mode2Const1 = the DE field of the Q.922 core frame should
                                    be set to constant 1."

              REFERENCE
                       "FRF.8 [9], Section 4.2.2"
              DEFVAL { mode1 }
              ::= { frAtmIwfConnectionDescriptorEntry 3 }

          frAtmIwfConnCongestionMappingMode OBJECT-TYPE


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              SYNTAX      INTEGER {
                             mode1(1),
                             mode2(2)
                          }
              MAX-ACCESS  read-write
              STATUS      current
              DESCRIPTION
                      "This object describes which mode of translation
                      is in use for forward congestion indication
                      mapping in the Frame Relay to ATM direction.

                      mode1 = The FECN field in the Q.922 core frame shall be
                              mapped to the ATM EFCI field of every cell
                              generated by the segmentation process of the
                              AAL5 PDU containing the information of that
                              frame.

                      mode2 = The FECN field in the Q.922 core frame shall not
                              be mapped to the ATM EFCI field of cells
                              generated by the segmentation process of the AAL5
                              PDU containing the information of that frame.
                              The EFCI field is always set to 'congestion not
                              experienced'.

                      In both of the modes above, if there is congestion
                      in the forward direction in the ATM layer within
                      the IWF, then the IWF can set the EFCI field to
                      'congestion experienced'."
              REFERENCE
                          "FRF.8 [9], Section 4.3.1.1"
              DEFVAL      { mode1 }
              ::= { frAtmIwfConnectionDescriptorEntry 4 }

          frAtmIwfConnEncapsulationMappingMode OBJECT-TYPE
              SYNTAX      INTEGER {
                             transparentMode(1),
                             translationMode(2)
                          }
              MAX-ACCESS  read-write
              STATUS      current
              DESCRIPTION
                      "This object indicates whether the mapping of
                      upper layer protocol encapsulation is enabled on
                      this interworking connection.


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                      transparentMode = Forward the encapsulations unaltered.

                      translationMode = Perform mapping between the two
                                        encapsulations due to the
                                        incompatibilities of the two methods."

              REFERENCE
                          "FRF.8 [9], Section 5.3"
              DEFVAL      { transparentMode }
              ::= { frAtmIwfConnectionDescriptorEntry 5 }

          frAtmIwfConnEncapsulationMappings OBJECT-TYPE
              SYNTAX      BITS {
                     none (0),          -- Transparent mode operation
                     bridgedPdus(1),    -- PID: 0x00-01,-07,-02 or -08
                     bridged802dot6(2), -- PID: 0x00-0B
                     bPdus(3),          -- PID: 0x00-0E or -0F
                     routedIp(4),       -- NLPID: OxCC
                     routedOsi(5),      -- NLPID: Ox81, 0x82 or 0x83
                     otherRouted(6),    --
                     x25Iso8202(7),     --
                     q933q2931(8) }
              MAX-ACCESS  read-write
              STATUS      current
              DESCRIPTION
                      "If upper layer protocol encapsulation mapping is
                      enabled on this interworking connection, then this
                      attribute enumerates which of the encapsulation
                      mappings are supported."
              REFERENCE
                          "FRF.8 [9], Section 5.3.1"
              DEFVAL      { { none } }
              ::= { frAtmIwfConnectionDescriptorEntry 6 }

          frAtmIwfConnFragAndReassEnabled OBJECT-TYPE
              SYNTAX      INTEGER { enabled(1),  notEnabled(2)}
              MAX-ACCESS  read-write
              STATUS      current
              DESCRIPTION
                      "The attribute indicates whether fragmentation and
                      reassembly is enabled for this connection."
              REFERENCE
                          "FRF.8 [9], Section 5.3.1.4"
              DEFVAL      { notEnabled }
              ::= { frAtmIwfConnectionDescriptorEntry 7 }


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          frAtmIwfConnArpTranslationEnabled OBJECT-TYPE
              SYNTAX      INTEGER { enabled(1),  notEnabled(2)}
              MAX-ACCESS  read-write
              STATUS      current
              DESCRIPTION
                      "The attribute indicates whether ARP translation
                      is enabled for this connection."
              REFERENCE
                          "FRF.8 [9], Section 5.4"
              DEFVAL      { notEnabled }
              ::= { frAtmIwfConnectionDescriptorEntry 8 }



































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          --
          -- Frame Relay/ATM PVC Service Interworking TRAP
          --

          frAtmIwfConnStatusChange NOTIFICATION-TYPE
              OBJECTS {   frAtmIwfConnIndex,
                          frAtmIwfConnAtmPort,
                          frAtmIwfConnVpi,
                          frAtmIwfConnVci,
                          frAtmIwfConnFrPort,
                          frAtmIwfConnDlci,
                          frAtmIwfConnAdminStatus,
                          frAtmIwfConnAtm2FrOperStatus,
                          frAtmIwfConnFr2AtmOperStatus
                       }
              STATUS      current
              DESCRIPTION
                      "An indication that the status of this
                      interworking connection has changed."
              ::= { frAtmIwfTrapsPrefix 1 }


























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          --
          -- Conformance Information
          --

          --
          -- Compliance Statement For Equipment
          --

          frAtmIwfEquipmentCompliance MODULE-COMPLIANCE
              STATUS      current
              DESCRIPTION
                      "The compliance statement for equipment that
                      implements the FR/ATM Interworking MIB."

              MODULE -- this module
                  MANDATORY-GROUPS { frAtmIwfBasicGroup,
                                     frAtmIwfConnectionDescriptorGroup,
                                     frAtmIwfNotificationsGroup }

                  OBJECT      frAtmIwfConnDeToClpMappingMode
                  SYNTAX      INTEGER { mode1(1) }
                  DESCRIPTION
                      "Only support for Mode 1 is required."

                  OBJECT      frAtmIwfConnClpToDeMappingMode
                  SYNTAX      INTEGER { mode1(1) }
                  DESCRIPTION
                      "Only support for Mode 1 is required."

                  OBJECT      frAtmIwfConnCongestionMappingMode
                  SYNTAX      INTEGER { mode1(1) }
                  DESCRIPTION
                      "Only support for Mode 1 is required."

                  OBJECT      frAtmIwfConnEncapsulationMappingMode
                  SYNTAX      INTEGER { transparentMode(1) }
                  DESCRIPTION
                      "Support for Translation Mode is not required."

                  OBJECT      frAtmIwfConnEncapsulationMappings
                  SYNTAX      BITS { none(0) }
                  DESCRIPTION
                      "The IWF may provide one, some or none of the
                      encapsulation translations defined in section
                      5.3.1 of FRF.8 [9]."


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                  OBJECT      frAtmIwfConnFragAndReassEnabled
                  SYNTAX      INTEGER { notEnabled(2) }
                  DESCRIPTION
                      "Only support for Mode 1 is required."

                  OBJECT      frAtmIwfConnArpTranslationEnabled
                  SYNTAX      INTEGER { notEnabled(2) }
                  DESCRIPTION
                      "Support for ARP Translation is not required."

              ::= { frAtmIwfCompliances 1 }


































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          --
          -- Compliance Statement For Service (CNM Interface)
          --

          frAtmIwfServiceCompliance MODULE-COMPLIANCE
              STATUS  current
              DESCRIPTION
                      "The compliance statement for a CNM interface that
                      implements the FR/ATM Interworking MIB."

              MODULE  -- this module
                  MANDATORY-GROUPS { frAtmIwfBasicGroup,
                                     frAtmIwfConnectionDescriptorGroup,
                                     frAtmIwfNotificationsGroup }

                  --
                  -- Exceptions for each object type implemented for a
                  -- CNM view of the FR/ATM Interworking MIB
                  --
                  OBJECT      frAtmIwfConnAdminStatus
                  MIN-ACCESS  read-only
                  DESCRIPTION
                      "Write access is not required."

                  OBJECT      frAtmIwfConnDeToClpMappingMode
                  SYNTAX      INTEGER { mode1(1) }
                  MIN-ACCESS  read-only
                  DESCRIPTION
                      "Support for Mode 1 is required.  Other modes are
                      optional.  Write access is not required."

                  OBJECT      frAtmIwfConnClpToDeMappingMode
                  SYNTAX      INTEGER { mode1(1) }
                  MIN-ACCESS  read-only
                  DESCRIPTION
                      "Support for Mode 1 is required.  Other modes are
                      optional.  Write access is not required."

                  OBJECT      frAtmIwfConnCongestionMappingMode
                  SYNTAX      INTEGER { mode1(1) }
                  MIN-ACCESS  read-only
                  DESCRIPTION
                      "Support for Mode 1 is required.  Other modes are
                      optional.  Write access is not required."



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                  OBJECT      frAtmIwfConnEncapsulationMappingMode
                  SYNTAX      INTEGER { transparentMode(1) }
                  MIN-ACCESS  read-only
                  DESCRIPTION
                      "Support for Transparent Mode is required.
                      Translation Mode is optional.  Write access is not
                      required."

                  OBJECT      frAtmIwfConnEncapsulationMappings
                  SYNTAX      BITS { none(0) }
                  MIN-ACCESS  read-only
                  DESCRIPTION
                      "The IWF may provide one, some or none of the
                      encapsulation translations defined in section
                      5.3.1 of FRF.8 [9]. Write access is not required."

                  OBJECT      frAtmIwfConnFragAndReassEnabled
                  SYNTAX      INTEGER { notEnabled(2) }
                  MIN-ACCESS  read-only
                  DESCRIPTION
                      "Support for Fragmentation and Reassembly is not
                      required.  Write access is not required."

                  OBJECT      frAtmIwfConnArpTranslationEnabled
                  SYNTAX      INTEGER { notEnabled(2) }
                  MIN-ACCESS  read-only
                  DESCRIPTION
                      "Support for ARP Translation is not required.
                      Write access is not required."

                  OBJECT      frAtmIwfConnRowStatus
                  MIN-ACCESS  read-only
                  DESCRIPTION
                      "Write access is not required."

              ::= { frAtmIwfCompliances 2 }










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          --
          -- Units of Conformance
          --

          --
          -- Basic FR/ATM IWF PVC Connection Group
          --
          frAtmIwfBasicGroup    OBJECT-GROUP
              OBJECTS { frAtmIwfConnIndexNext,
                        frAtmIwfConnAdminStatus,
                        frAtmIwfConnAtm2FrOperStatus,
                        frAtmIwfConnAtm2FrLastChange,
                        frAtmIwfConnFr2AtmOperStatus,
                        frAtmIwfConnFr2AtmLastChange,
                        frAtmIwfConnUnrecognizedPayloadHeaders,
                        frAtmIwfConnectionDescriptor,
                        frAtmIwfConnRowStatus }
              STATUS  current
              DESCRIPTION
                      "The collection of basic objects for configuration
                      and control of FR/ATM interworking connections."
              ::= { frAtmIwfGroups 1 }

          --
          -- FR/ATM IWF PVC Connection Descriptor Group
          --

          frAtmIwfConnectionDescriptorGroup    OBJECT-GROUP
              OBJECTS {
                  frAtmIwfConnectionDescriptorIndexNext,
                  frAtmIwfConnDeToClpMappingMode,
                  frAtmIwfConnClpToDeMappingMode,
                  frAtmIwfConnCongestionMappingMode,
                  frAtmIwfConnEncapsulationMappingMode,
                  frAtmIwfConnEncapsulationMappings,
                  frAtmIwfConnUnrecognizedPayloadHeaders,
                  frAtmIwfConnFragAndReassEnabled,
                  frAtmIwfConnArpTranslationEnabled
                  }
              STATUS  current
              DESCRIPTION
                      "The collection of basic objects for specification
                      of FR/ATM interworking connection descriptors."
              ::= { frAtmIwfGroups 2 }


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          --
          -- Notfication Group
          --

          frAtmIwfNotificationsGroup NOTIFICATION-GROUP
              NOTIFICATIONS { frAtmIwfConnStatusChange }
              STATUS  current
              DESCRIPTION
                      "The notification for FR/ATM interworking status
                      change."
              ::= { frAtmIwfGroups 3 }
          END


































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7.  Acknowledgments

   This document was produced by the Frame Relay Service MIB Working
   Group.










































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8.  References

   [1]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and
        S. Waldbusser, "Structure of Management Information for version 2
        of the Simple Network Management Protocol (SNMPv2)", RFC 1902,
        January 1996.

   [2]  McCloghrie, K., and M. Rose, Editors, "Management Information Base
        for Network Management of TCP/IP-based internets: MIB-II", STD 17,
        RFC 1213, March 1991.

   [3]  Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple Network
        Management Protocol", RFC 1157, May 1990.

   [4]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and
        S. Waldbusser, "Protocol Operations for version 2 of the Simple
        Network Management Protocol (SNMPv2)", RFC 1905, January 1996.

   [5]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and
        S. Waldbusser, "Transport Mappings for version 2 of the Simple
        Network Management Protocol (SNMPv2)", RFC 1906, January 1996.

   [6]  SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and
        S. Waldbusser, "Management Information Base for version 2 of the
        Simple Network Management Protocol (SNMPv2)", RFC 1907, January
        1996.

   [7]  Information processing systems - Open Systems Interconnection,
        "Specification of Abstract Syntax Notation One (ASN.1)",
        International Organization for Standardization, International
        Standard 8824, December 1987.

   [8]  Information processing systems - Open Systems Interconnection,
        "Specification of Basic Encoding Rules for Abstract Syntax Notation
        One (ASN.1)", International Organization for Standardization,
        International Standard 8825, December 1987.

   [9]  Frame Relay/ATM PVC Service Interworking Implementation Agreement,
         Frame Relay Forum, Document Number FRF.8, April 14, 1995.

   [10] Network Working Group, Noto, Spiegel, and Tesink, "Definitions
        of Textual Conventions and OBJECT-IDENTITIES for ATM Management",
        RFC 2514, February 1999.



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9.  Security Considerations

This MIB adds no security issues that are not raised by SNMP itself. As
a Network Management Protocol, SNMP is capable of changing the
configuration of a system, of denial of service attacks through
requiring the agent to respond to its messages, and displaying values of
system counters and configuration settings in the clear where an
adversary might read them. This, however, is not in itself a threat:
this is the function of the protocol, but could be misused. Such misuse
can be avoided or minimized through SNMP Security.


10.  Authors' Addresses

   Kenneth Rehbehn
   Visual Networks
   2092 Gaither Road
   Rockville, MD, USA 20850

   Phone: +1 301 296-2325

   EMail: krehbehn@visualnetworks.com



   Orly Nicklass
   RAD Data Communications, Ltd.
   12 Hanechoshet St.
   Tel Aviv 69710
   Israel

   Phone: +972 (3) 6459588

   E-mail: orly@radmail.rad.co.il



   George Mouradian
   AT&T Labs,  Room 1G-325
   101 Crawfords Corner Road
   Holmdel, NJ  USA  07733

   Phone: +1 908 949 7671

   EMail: gvm@att.com


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11.  Copyright Section

Copyright (C) The Internet Society (1999). All Rights
Reserved.

This document and translations of it may be copied and
furnished to others, and derivative works that comment on or
otherwise explain it or assist in its implementation may be
prepared, copied, published and distributed, in whole or in
part, without restriction of any kind, provided that the above
copyright notice and this paragraph are included on all such
copies and derivative works.  However, this document itself may
not be modified in any way, such as by removing the copyright
notice or references to the Internet Society or other Internet
organizations, except as needed for the  purpose of developing
Internet standards in which case the procedures for copyrights
defined in the Internet Standards process must be followed, or
as required to translate it into languages other than English.

The limited permissions granted above are perpetual and will
not be revoked by the Internet Society or its successors or
assigns.

This document and the information contained herein is provided
on an "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET
ENGINEERING TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE
OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY
IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE.
















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