Definitions of Managed Objects for HPR using SMIv2
draft-ietf-snanau-hprmib-01
The information below is for an old version of the document that is already published as an RFC.
| Document | Type |
This is an older version of an Internet-Draft that was ultimately published as RFC 2238.
|
|
|---|---|---|---|
| Authors | Bob Clouston , Dr. Robert C. Moore | ||
| Last updated | 2013-03-02 (Latest revision 1997-04-28) | ||
| RFC stream | Internet Engineering Task Force (IETF) | ||
| Intended RFC status | Proposed Standard | ||
| Formats | |||
| Additional resources | Mailing list discussion | ||
| Stream | WG state | (None) | |
| Document shepherd | (None) | ||
| IESG | IESG state | Became RFC 2238 (Proposed Standard) | |
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| Send notices to | (None) |
draft-ietf-snanau-hprmib-01
Definitions of Managed Objects
for HPR
March 31, 1997
Bob Clouston (editor)
Cisco Systems
clouston@cisco.com
Bob Moore (editor)
IBM Corporation
remoore@ralvm6.vnet.ibm.com
<draft-ietf-snanau-hprmib-01.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 draft documents valid for a maximum of six months.
Internet-Drafts may be updated, replaced, or obsoleted by other
documents at any time. It is not appropriate to use Internet-Drafts as
reference material or to cite them other than as a working draft or work
in progress.
To learn the current status of any Internet-Draft, please check the
1id-abstracts.txt listing contained in the Internet-Drafts Shadow
Directories on ds.internic.net, nic.nordu.net, ftp.isi.edu, or
munnari.oz.au.
2. Introduction
This memo defines a portion of the Management Information Base (MIB) for
use with network management protocols in the Internet community. In
particular, it defines objects for monitoring and controlling network
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devices with HPR (High Performance Routing) capabilities. This memo
identifies managed objects for the HPR protocol.
This memo does not specify a standard for the Internet community.
3. The SNMP Network Management Framework
The SNMP Network Management Framework consists of several components.
For the purpose of this specification, the applicable components of the
Framework are the SMI and related documents [1, 2, 3], which define the
mechanisms used for describing and naming objects for the purpose of
management.
The Framework permits new objects to be defined for the purpose of
experimentation and evaluation.
4. Overview
This document identifies objects for monitoring the configuration and
active characteristics of devices with HPR capabilities. HPR is an
enhancement to the Advanced Peer-to-Peer Network (APPN) architecture
that provides fast data routing and improved session reliability. APPN
is one of the protocols that can use the HPR transport mechanism. See
the SNANAU APPN MIB [4] for management of APPN and APPN use of the HPR
transport.
The HPR terms and overall architecture [5] are available at
http://www.networking.ibm.com/app/aiwdoc/aiwsrc.htm.
Automatic Network Routing (ANR) is a fast low-level routing technique.
Each node assigns a unique (within that node) ANR label for each out-
bound link as it is activated. The label size is defined by the ANR
node, and nodes only need to know how to interpret their own labels.
The ANR string is a group of ANR labels encoded in a header in front of
the message being sent. At each hop the node strips off its own ANR
label and forwards the message onto the link with that label. The last
label in the string is the Network Connection Endpoint (NCE), which
identifies the component within the destination node that is to receive
the message.
Rapid Transport Protocol (RTP) is an end-to-end full duplex transport
connection (pipe). It provides for high-speed transport of data using
ANR. RTP is connection-oriented, and delivers data in correct order
reliably. Error recovery is done efficiently with selective
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retransmission of data. An RTP path can be switched without disrupting
the sessions using it. An RTP path switch may be done automatically if
a link in the path fails and another RTP path is available, or on demand
to attempt to restore the optimal path.
RTP performs flow/congestion control with the Adaptive Rate-Based (ARB)
algorithm, described in [5]. ARB is done only at the endpoints of the
RTP pipe, so intermediate hops are not involved. ARB regulates the flow
of data over an RTP connection by adaptively changing the sender's rate
based on feedback on the receiver's rate. It is designed to prevent
congestion rather than react to it.
In this document, we describe HPR managed objects.
Highlights of the management functions supported by the HPR MIB module
include the following:
o Identifying network connection endpoints (NCEs).
o Identifying how incoming packets are routed based on ANR labels.
o Monitoring the RTP connections between nodes. Tower.
o Ability to trigger an RTP path switch. The MIB only supports a
path switch with no specified path. Some implementations may have
a product-specific option to specify a new path. The
hprOperatorPathSwitchSupport object identifies this support.
o Historical information about RTP path switch attempts
This MIB module does not support:
o Configuration of HPR nodes.
o Protocol-specific uses of HPR (such as APPN)
o Traps. The APPN MIB contains a trap for Alert conditions that may
affect HPR resources. The value for the affectedObject object
contained in the alertTrap is determined by the implementation. It
may contain a VariablePointer from the HPR MIB. The APPN/HPR
Alerts are defined in [6].
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4.1. HPR MIB Structure
Although HPR is an extension to APPN, the HPR MIB relies very little
upon the APPN MIB. The appnNodeCounterDisconTime object in the APPN MIB
is used to detect discontinuities in HPR MIB counters. The
hprNodeCpName object in this MIB has the same value as the
appnNodeCpName object in the APPN MIB.
The HPR MIB module contains the following collections of objects:
o hprGlobal - general HPR objects.
o hprAnrRouting - objects related to the ANR routing table.
o hprTransportUser - objects related to users of the HPR transport.
o hprRtp - objects related to the HPR Transport Tower.
These are described below in more detail.
4.1.1. hprGlobal group
The hprGlobal group consists of general objects such as the APPN CP
(control point) name of the HPR node and the level of support for
operator-requested path switches.
4.1.2. hprAnrRouting group
The hprAnrRouting group consists objects to monitor and control the
counting of ANR packets received and the following table:
The hprAnrRoutingTable correlates incoming ANR labels to the outbound
transmission group (TG) or local NCE to which incoming packet will be
forwarded. An entry defines the label type as identifying a local NCE
or a TG, identifies the NCE or TG, and counts the number of packets
received with the entry's ANR label.
4.1.3. hprTransportUser group
The hprTransportUser group consists of the following table:
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The hprNceTable identifies network connection endpoints and their
function types. The function type can be any combination of a CP,
logical unit (LU), boundary function, and route setup.
4.1.4. hprRtp group
The hprRtp group consists of the following objects and tables:
1) hprRtpGlobe
These objects contain information about the number of RTP connection
setups, and control of RTP counters.
2) hprRtpTable
This table contains one entry for each RTP connection. The information
includes local and remote NCE IDs and TCIDs (transport connection
identifiers), timers, send rates, and statistics. A path switch can be
triggered by the hprRptPathSwitchTrigger object if the agent node
supports it; however, a new path cannot be specified.
3) hprRtpStatusTable
This table contains statistics and historical information for RTP path
switches attempts, including old and new ANR strings and Route Selection
Control Vectors (RSCVs), why the path switch was initiated, and the
result (successful or reason for failure).
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5. Definitions
HPR-MIB DEFINITIONS ::= BEGIN
IMPORTS
DisplayString, DateAndTime, TimeStamp, TEXTUAL-CONVENTION
FROM SNMPv2-TC
Counter32, Gauge32, Unsigned32, TimeTicks, BITS,
OBJECT-TYPE, MODULE-IDENTITY
FROM SNMPv2-SMI
MODULE-COMPLIANCE, OBJECT-GROUP
FROM SNMPv2-CONF
snanauMIB
FROM SNA-NAU-MIB
SnaControlPointName
FROM APPN-MIB;
hprMIB MODULE-IDENTITY
LAST-UPDATED "970331000000Z"
ORGANIZATION "AIW APPN / HPR MIB SIG"
CONTACT-INFO
"
Bob Clouston
Cisco Systems
7025 Kit Creek Road
P.O. Box 14987
Research Triangle Park, NC 27709, USA
Tel: 1 919 472 2333
E-mail: clouston@cisco.com
Bob Moore
IBM Corporation
800 Park Offices Drive
RHJA/664
P.O. Box 12195
Research Triangle Park, NC 27709, USA
Tel: 1 919 254 4436
E-mail: remoore@ralvm6.vnet.ibm.com
"
DESCRIPTION
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"This is the MIB module for objects used to
manage network devices with HPR capabilities."
::= { snanauMIB 6 }
-- snanauMIB ::= { mib-2 34 }
-- *********************************************************************
-- Textual Conventions
-- *********************************************************************
-- SnaControlPointName is imported from the APPN MIB
HprNceTypes ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A bit string identifying the set of functions provided by a
network connection endpoint (NCE)."
SYNTAX BITS { controlPoint(0),
logicalUnit(1),
boundaryFunction(2),
routeSetup(3) }
HprRtpCounter ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"An object providing statistics for an RTP connection. A
Management Station can detect discontinuities in this counter
by monitoring the correspondingly indexed
hprRtpCounterDisconTime object."
SYNTAX Counter32
-- *********************************************************************
hprObjects OBJECT IDENTIFIER ::= { hprMIB 1 }
-- *********************************************************************
-- *********************************************************************
hprGlobal OBJECT IDENTIFIER ::= { hprObjects 1 }
-- **********************************************************************
-- The hprGlobal group applies to both intermediate and end nodes.
-- **********************************************************************
hprNodeCpName OBJECT-TYPE
SYNTAX SnaControlPointName
MAX-ACCESS read-only
STATUS current
DESCRIPTION
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"Administratively assigned network name for the APPN node where
this HPR implementation resides. If this object has the same
value as the appnNodeCpName object in the APPN MIB, then the
two objects are referring to the same APPN node."
::= { hprGlobal 1 }
hprOperatorPathSwitchSupport OBJECT-TYPE
SYNTAX INTEGER {
notSupported(1),
switchTriggerSupported(2),
switchToPathSupported(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object indicates an implementation's level of support for
an operator-requested path switch.
notSupported(1) - the agent does not support
operator-requested path switches
switchTriggerSupported(2) - the agent supports a 'switch
path now' command from an
operator, but not a command to
switch to a specified path
switchToPathSupported(3) - the agent supports both a
'switch path now' command and a
command to switch to a specified
path. Note that the latter
command is not available via this
MIB; a system that supports it
must do so via other means, such
as a local operator interface."
::= { hprGlobal 2 }
-- **********************************************************************
hprAnrRouting OBJECT IDENTIFIER ::= { hprObjects 2 }
-- **********************************************************************
hprAnrsAssigned OBJECT-TYPE
SYNTAX Counter32
UNITS "ANR labels"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
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"The count of ANR labels assigned by this node since it was
last re-initialized. A Management Station can detect
discontinuities in this counter by monitoring the
appnNodeCounterDisconTime object in the APPN MIB."
::= { hprAnrRouting 1 }
hprAnrCounterState OBJECT-TYPE
SYNTAX INTEGER {
notActive(1),
active(2)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object is used for a network management station to turn
on/off the counting of ANR packets in the hprAnrRoutingTable.
The initial value of this object is an implementation choice.
notActive(1) - the counter hprAnrPacketsReceived
returns no meaningful value
active(2) - the counter hprAnrPacketsReceived is
being incremented and is returning
meaningful values"
::= { hprAnrRouting 2 }
hprAnrCounterStateTime OBJECT-TYPE
SYNTAX DateAndTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time when the hprAnrCounterState object last changed its
value. The initial value returned by this object is the time
at which the APPN node instrumented with this MIB was last
brought up."
::= { hprAnrRouting 3 }
hprAnrRoutingTable OBJECT-TYPE
SYNTAX SEQUENCE OF HprAnrRoutingEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The ANR Routing table provides a means of correlating an
incoming ANR label (i.e., one assigned by this node) with the
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TG over which a packet containing the label will be forwarded.
When the ANR label identifies a local NCE, the hprAnrOutTgDest
and hprAnrOutTgNum objects have no meaning. The table also
contains an object to count the number of packets received with
a given ANR label."
::= { hprAnrRouting 4 }
hprAnrRoutingEntry OBJECT-TYPE
SYNTAX HprAnrRoutingEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The ANR label is used to index this table."
INDEX { hprAnrLabel }
::= { hprAnrRoutingTable 1 }
HprAnrRoutingEntry ::= SEQUENCE {
hprAnrLabel OCTET STRING,
hprAnrType INTEGER,
hprAnrOutTgDest DisplayString,
hprAnrOutTgNum INTEGER,
hprAnrPacketsReceived Counter32,
hprAnrCounterDisconTime TimeStamp
}
hprAnrLabel OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (1..8))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The first ANR label in an incoming packet."
::= { hprAnrRoutingEntry 1 }
hprAnrType OBJECT-TYPE
SYNTAX INTEGER {
nce(1),
tg(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"An object indicating whether an ANR label assigned by this
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node identifies a local NCE or a TG on which outgoing packets
are forwarded.
nce(1) - the ANR label identifies a local NCE. In this
case the hprAnrOutTgDest and hprAnrOutTgNum
objects have no meaning.
tg(2) - the ANR label identifies a TG."
::= { hprAnrRoutingEntry 2 }
hprAnrOutTgDest OBJECT-TYPE
SYNTAX DisplayString (SIZE (0 | 3..17))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Destination node for the TG over which packets with this ANR
label are forwarded. This is the fully qualified name of an
APPN network node or end node, formatted according to the
SnaControlPointName textual convention. If the ANR label
identifies a local NCE, then this object returns a zero-length
string.
This object corresponds to the appnLocalTgDest object in the
APPN MIB."
::= { hprAnrRoutingEntry 3 }
hprAnrOutTgNum OBJECT-TYPE
SYNTAX INTEGER (0..255)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of the TG over which packets with this ANR label are
forwarded. If the ANR label identifies a local NCE, then this
object returns the value 0, since 0 is not a valid TG number
for a TG that supports HPR.
This object corresponds to the appnLocalTgNum object in the
APPN MIB."
::= { hprAnrRoutingEntry 4 }
hprAnrPacketsReceived OBJECT-TYPE
SYNTAX Counter32
UNITS "ANR packets"
MAX-ACCESS read-only
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STATUS current
DESCRIPTION
"The count of packets received with this ANR label as their
first label.
A Management Station can detect discontinuities in this counter
by monitoring the hprAnrCounterDisconTime object in the same
row."
::= { hprAnrRoutingEntry 5 }
hprAnrCounterDisconTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of the sysUpTime object when the
hprAnrPacketsReceived counter for this ANR label last
experienced a discontinuity. This will be the more recent of
two times: the time at which the ANR label was associated with
either an outgoing TG or a local NCE, or the time at which the
ANR counters were last turned on or off."
::= { hprAnrRoutingEntry 6 }
-- **********************************************************************
hprTransportUser OBJECT IDENTIFIER ::= { hprObjects 3 }
-- **********************************************************************
-- Transport Service User (TU) Table: (RTP Connection Users)
--
-- There will be several users of the HPR transport and each HPR node
-- shall maintain a table of these users.
-- **********************************************************************
hprNceTable OBJECT-TYPE
SYNTAX SEQUENCE OF HprNceEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Network Connection Endpoint (NCE) table."
::= { hprTransportUser 1 }
hprNceEntry OBJECT-TYPE
SYNTAX HprNceEntry
MAX-ACCESS not-accessible
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STATUS current
DESCRIPTION
"The NCE ID is used to index this table."
INDEX { hprNceId }
::= { hprNceTable 1 }
HprNceEntry ::= SEQUENCE {
hprNceId OCTET STRING,
hprNceType HprNceTypes,
hprNceDefault HprNceTypes,
hprNceInstanceId OCTET STRING
}
hprNceId OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (1..8))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Network Connection Endpoint (NCE) id. NCEs identify
Control Points (Cp), Logical Units (Lu), HPR Boundary Functions
(Bf) and Route Setup (Rs) Functions. A value for this object
can be retrieved from any of several *NceId objects in the APPN
MIB; in each case this value identifies a row in this table
containing information related to that in the APPN MIB."
::= { hprNceEntry 1 }
hprNceType OBJECT-TYPE
SYNTAX HprNceTypes
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A bit string identifying the function types provided by this
Network Connection Endpoint (NCE)."
::= { hprNceEntry 2 }
hprNceDefault OBJECT-TYPE
SYNTAX HprNceTypes
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A bit string identifying the function types for which this
Network Connection Endpoint (NCE) is the default NCE. While
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default NCEs are not explicitly defined in the architecture,
some implementations provide them; for such implementations, it
is useful to make this information available to a Management
Station."
::= { hprNceEntry 3 }
hprNceInstanceId OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (4))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The NCE instance identifier (NCEII) identifying the current
instance of this NCE."
::= { hprNceEntry 4 }
-- **********************************************************************
hprRtp OBJECT IDENTIFIER ::= { hprObjects 4 }
-- **********************************************************************
-- **********************************************************************
--
-- The RTP group is implemented by all managed nodes supporting the
-- HPR Transport Tower. The group contains several scalars (simple
-- objects) and a table.
-- **********************************************************************
-- **********************************************************************
hprRtpGlobe OBJECT IDENTIFIER ::= { hprRtp 1}
-- **********************************************************************
hprRtpGlobeConnSetups OBJECT-TYPE
SYNTAX Counter32
UNITS "RTP connection setups"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of RTP connection setups in which this node has
participated, as either sender or receiver, since it was last
re-initialized. Retries of a setup attempt do not cause the
counter to be incremented.
A Management Station can detect discontinuities in this counter
by monitoring the appnNodeCounterDisconTime object in the APPN
MIB."
::= { hprRtpGlobe 1 }
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hprRtpGlobeCtrState OBJECT-TYPE
SYNTAX INTEGER {
notActive(1),
active(2)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object allows a network management station to turn the
counters in the hprRtpTable on and off. The initial value of
this object is an implementation choice.
notActive(1) - the counters in the hprRtpTable are
returning no meaningful values
active(2) - the counters in the hprRtpTable are
being incremented and are returning
meaningful values"
::= { hprRtpGlobe 2 }
hprRtpGlobeCtrStateTime OBJECT-TYPE
SYNTAX DateAndTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time when the value of the hprRtpGlobeCtrState object last
changed."
::= { hprRtpGlobe 3 }
-- **********************************************************************
-- The RTP Connection Table
-- There may be many RTP connections on a node supporting the functions
-- specified in the RTP option set. Each node implementing this option
-- set shall maintain a table of these RTP connections.
-- **********************************************************************
hprRtpTable OBJECT-TYPE
SYNTAX SEQUENCE OF HprRtpEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The RTP Connection table"
::= { hprRtp 2 }
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hprRtpEntry OBJECT-TYPE
SYNTAX HprRtpEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The local NCE ID and local TCID are used to index this table."
INDEX
{ hprRtpLocNceId,
hprRtpLocTcid }
::= { hprRtpTable 1 }
HprRtpEntry ::= SEQUENCE {
hprRtpLocNceId OCTET STRING, -- local nce id
hprRtpLocTcid OCTET STRING, -- local tcid
hprRtpRemCpName SnaControlPointName,-- remote cp name
hprRtpRemNceId OCTET STRING, -- remote nce id
hprRtpRemTcid OCTET STRING, -- remote tcid
hprRtpPathSwitchTrigger INTEGER, -- trigger (read-write)
hprRtpRscv OCTET STRING, -- rscv
hprRtpTopic DisplayString, -- topic (cos)
hprRtpState INTEGER, -- state
hprRtpUpTime TimeTicks, -- up time
hprRtpLivenessTimer Unsigned32, -- liveness timer
hprRtpShortReqTimer Unsigned32, -- short request timer
hprRtpPathSwTimer Unsigned32, -- path switch timer
hprRtpLivenessTimeouts HprRtpCounter, -- liveness timeouts
hprRtpShortReqTimeouts HprRtpCounter, -- short req timeouts
hprRtpMaxSendRate Gauge32, -- maximum send rate
hprRtpMinSendRate Gauge32, -- minimum send rate
hprRtpCurSendRate Gauge32, -- current send rate
hprRtpSmRdTripDelay Gauge32, -- smooth rnd trip delay
hprRtpSendPackets HprRtpCounter, -- packets sent
hprRtpRecvPackets HprRtpCounter, -- packets received
hprRtpSendBytes HprRtpCounter, -- bytes sent
hprRtpRecvBytes HprRtpCounter, -- bytes received
hprRtpRetrPackets HprRtpCounter, -- pkts re-xmitted
hprRtpPacketsDiscarded HprRtpCounter, -- pkts discarded
hprRtpDetectGaps HprRtpCounter, -- gaps detected
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hprRtpRateReqSends HprRtpCounter, -- rate req send
hprRtpOkErrPathSws HprRtpCounter, -- ok err path sws
hprRtpBadErrPathSws HprRtpCounter, -- bad err path sws
hprRtpOkOpPathSws HprRtpCounter, -- ok op path sws
hprRtpBadOpPathSws HprRtpCounter, -- bad op path sws
hprRtpCounterDisconTime TimeStamp -- discontinuity ind
}
hprRtpLocNceId OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (1..8))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The local Network Connection Endpoint (NCE) ID of this RTP
connection. NCEs identify CPs, LUs, Boundary Functions (BFs),
and Route Setup (RS) components. A value for this object can
be retrieved from any of several *NceId objects in the APPN
MIB; in each case this value identifies a row in this table
containing information related to that in the APPN MIB."
::= { hprRtpEntry 1 }
hprRtpLocTcid OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (8))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The local TCID of this RTP connection. A value for this
object can be retrieved from any of several *Tcid objects in
the APPN MIB; in each case this value identifies a row in this
table containing information related to that in the APPN MIB."
::= { hprRtpEntry 2 }
hprRtpRemCpName OBJECT-TYPE
SYNTAX SnaControlPointName
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Administratively assigned network name for the remote node of
this RTP connection."
::= { hprRtpEntry 3 }
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hprRtpRemNceId OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (1..8))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The remote Network Connection Endpoint (NCE) of this RTP
connection. NCEs identify CPs, LUs, Boundary Functions (BFs),
and Route Setup (RS) components."
::= { hprRtpEntry 4 }
hprRtpRemTcid OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (8))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The remote TCID of this RTP connection."
::= { hprRtpEntry 5 }
hprRtpPathSwitchTrigger OBJECT-TYPE
SYNTAX INTEGER {
ready(1),
switchPathNow(2)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Object by which a Management Station can trigger an operator-
requested path switch, by setting the value to
switchPathNow(2). Setting this object to switchPathNow(2)
triggers a path switch even if its previous value was already
switchPathNow(2).
The value ready(1) is returned on GET operations until a SET
has been processed; after that the value received on the most
recent SET is returned.
This MIB module provides no support for an operator-requested
switch to a specified path."
::= { hprRtpEntry 6 }
hprRtpRscv OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (0..255))
MAX-ACCESS read-only
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STATUS current
DESCRIPTION
"The forward Route Selection Control Vector for this RTP
connection. The format of this vector is described in SNA
Formats.
The value returned in this object during a path switch is
implementation-dependent: it may be the old path, the new
path, a zero-length string, or some other valid RSCV string."
::= { hprRtpEntry 7 }
hprRtpTopic OBJECT-TYPE
SYNTAX DisplayString (SIZE(8))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The topic for this RTP connection. This is used to indicate
the Class of Service."
::= { hprRtpEntry 8 }
hprRtpState OBJECT-TYPE
SYNTAX INTEGER {
rtpListening(1),
rtpCalling(2),
rtpConnected(3),
rtpPathSwitching(4),
rtpDisconnecting(5),
other(99)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The state of the RTP connection, from the perspective of the
local RTP protocol machine:
rtpListening - connection open; waiting for other end
to call in
rtpCalling - connection opened, attempting to call
out, have not yet received any data
from other end
rtpConnected - connection is active; responded to a
call-in or received other end's TCID
from a call-out attempt
rtpPathSwitching - the path switch timer is running;
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attempting to find a new path for this
connection.
rtpDisconnecting - no sessions are using this connection;
in process of bringing it down
other - the connection is not in any of the
states listed above."
::= { hprRtpEntry 9 }
hprRtpUpTime OBJECT-TYPE
SYNTAX TimeTicks
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The length of time the RTP connection has been up, measured in
1/100ths of a second."
::= { hprRtpEntry 10 }
hprRtpLivenessTimer OBJECT-TYPE
SYNTAX Unsigned32
UNITS "1/100ths of a second"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of the liveness (ALIVE) timer of this RTP
connection, in units of 1/100th of a second. When this timer
expires and no packet has arrived from the partner since it was
last set, packets with Status Request indicators will be sent
to see if the RTP connection is still alive."
::= { hprRtpEntry 11 }
hprRtpShortReqTimer OBJECT-TYPE
SYNTAX Unsigned32
UNITS "1/100ths of a second"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of the RTP SHORT_REQ timer, in units of 1/100 of a
second. This timer represents the maximum time that a sender
waits for a reply from a receiver."
::= { hprRtpEntry 12 }
hprRtpPathSwTimer OBJECT-TYPE
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SYNTAX Unsigned32
UNITS "1/100ths of a second"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The length of time that RTP should attempt a path switch for a
connection, in units of 1/100th of a second."
::= { hprRtpEntry 13 }
hprRtpLivenessTimeouts OBJECT-TYPE
SYNTAX HprRtpCounter
UNITS "liveness timeouts"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of liveness timeouts for this RTP connection."
::= { hprRtpEntry 14 }
hprRtpShortReqTimeouts OBJECT-TYPE
SYNTAX HprRtpCounter
UNITS "short request timeouts"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of short request timeouts for this RTP connection."
::= { hprRtpEntry 15 }
hprRtpMaxSendRate OBJECT-TYPE
SYNTAX Gauge32
UNITS "bytes per second"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The high-water mark for this RTP connection's send rate, in
units of bytes per second. This is the high-water mark for the
entire life of the connection, not just the high-water mark for
the connection's current path.
For more details on this and other parameters related to HPR,
see the High Performance Routing Architecture Reference."
::= { hprRtpEntry 16 }
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hprRtpMinSendRate OBJECT-TYPE
SYNTAX Gauge32
UNITS "bytes per second"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The low-water mark for this RTP connection's send rate, in
units of bytes per second. This is the low-water mark for the
entire life of the connection, not just the low-water mark for
the connection's current path.
For more details on this and other parameters related to HPR,
see the High Performance Routing Architecture Reference."
::= { hprRtpEntry 17 }
hprRtpCurSendRate OBJECT-TYPE
SYNTAX Gauge32
UNITS "bytes per second"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current send rate for this RTP connection, in units of
bytes per second.
For more details on this and other parameters related to HPR,
see the High Performance Routing Architecture Reference."
::= { hprRtpEntry 18 }
hprRtpSmRdTripDelay OBJECT-TYPE
SYNTAX Gauge32
UNITS "1/1000ths of a second"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The smoothed round trip delay for this RTP connection, in
units of 1/1000th of a second (ms).
For more details on this and other parameters related to HPR,
see the High Performance Routing Architecture Reference."
::= { hprRtpEntry 19 }
hprRtpSendPackets OBJECT-TYPE
SYNTAX HprRtpCounter
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UNITS "RTP packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of packets successfully sent on this RTP
connection."
::= { hprRtpEntry 20 }
hprRtpRecvPackets OBJECT-TYPE
SYNTAX HprRtpCounter
UNITS "RTP packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of packets received on this RTP connection. The
counter is incremented only once if duplicate copies of a
packet are received."
::= { hprRtpEntry 21 }
hprRtpSendBytes OBJECT-TYPE
SYNTAX HprRtpCounter
UNITS "bytes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of bytes sent on this RTP connection. Both RTP
Transport Header (THDR) bytes and data bytes are included in
this count."
::= { hprRtpEntry 22 }
hprRtpRecvBytes OBJECT-TYPE
SYNTAX HprRtpCounter
UNITS "bytes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of bytes received on this RTP connection. Both RTP
Transport Header (THDR) bytes and data bytes are included in
this count."
::= { hprRtpEntry 23 }
hprRtpRetrPackets OBJECT-TYPE
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SYNTAX HprRtpCounter
UNITS "RTP packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of packets retransmitted on this RTP connection."
::= { hprRtpEntry 24 }
hprRtpPacketsDiscarded OBJECT-TYPE
SYNTAX HprRtpCounter
UNITS "RTP packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of packets received on this RTP connection and then
discarded. A packet may be discarded because it is determined
to be a duplicate, or for other reasons."
::= { hprRtpEntry 25 }
hprRtpDetectGaps OBJECT-TYPE
SYNTAX HprRtpCounter
UNITS "gaps"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of gaps detected on this RTP connection."
::= { hprRtpEntry 26 }
hprRtpRateReqSends OBJECT-TYPE
SYNTAX HprRtpCounter
UNITS "rate requests"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of Rate Requests sent on this RTP connection."
::= { hprRtpEntry 27 }
hprRtpOkErrPathSws OBJECT-TYPE
SYNTAX HprRtpCounter
UNITS "path switch attempts"
MAX-ACCESS read-only
STATUS current
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DESCRIPTION
"The count of successful path switch attempts for this RTP
connection due to errors."
::= { hprRtpEntry 28 }
hprRtpBadErrPathSws OBJECT-TYPE
SYNTAX HprRtpCounter
UNITS "path switch attempts"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of unsuccessful path switches for this RTP
connection due to errors."
::= { hprRtpEntry 29 }
hprRtpOkOpPathSws OBJECT-TYPE
SYNTAX HprRtpCounter
UNITS "path switches"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of successful path switches for this RTP connection
due to operator requests."
::= { hprRtpEntry 30 }
hprRtpBadOpPathSws OBJECT-TYPE
SYNTAX HprRtpCounter
UNITS "path switches"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The count of unsuccessful path switches for this RTP
connection due to operator requests. This counter is not
incremented by an implementation that does not support
operator-requested path switches, even if a Management Station
requests such a path switch by setting the
hprRtpPathSwitchTrigger object."
::= { hprRtpEntry 31 }
hprRtpCounterDisconTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
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STATUS current
DESCRIPTION
"The value of the sysUpTime object when the counters for this
RTP connection last experienced a discontinuity. This will be
the more recent of two times: the time at which the connection
was established or the time at which the HPR counters were last
turned on or off."
::= { hprRtpEntry 32 }
-- **********************************************************************
-- The RTP Connection Status Table
-- This table contains statistics and historical information related to
-- both successful and unsuccessful RTP path switches. This information
-- can be important for both trend analysis and problem determination.
--
-- Note the terminology here: when RTP is triggered to find a new path
-- for a connection, this initiates a 'path switch,' which will end up
-- being either successful or unsuccessful. During this path switch,
-- RTP will make one or more 'path switch attempts,' which are attempts
-- to find a new path for the connection and switch the connection to
-- it. This 'new' path may be the same path that the connection was
-- using before the path switch.
--
-- It is an implementation option how many entries to keep in this
-- table, and how long to retain any individual entry.
-- **********************************************************************
hprRtpStatusTable OBJECT-TYPE
SYNTAX SEQUENCE OF HprRtpStatusEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"RTP Connection Status Table: This table contains historical
information on RTP connections. An entry is created in this
table when a path switch is completed, either successfully or
unsuccessfully."
::= { hprRtp 3 }
hprRtpStatusEntry OBJECT-TYPE
SYNTAX HprRtpStatusEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table is indexed by local NCE ID, local TCID, and an
integer hprRtpStatusIndex. Thus the primary grouping of table
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rows is by RTP connection, with the multiple entries for a
given RTP connection ordered by time."
INDEX
{ hprRtpStatusLocNceId,
hprRtpStatusLocTcid,
hprRtpStatusIndex }
::= { hprRtpStatusTable 1 }
HprRtpStatusEntry ::= SEQUENCE {
hprRtpStatusLocNceId OCTET STRING, -- local nce id
hprRtpStatusLocTcid OCTET STRING, -- local tcid
hprRtpStatusIndex Unsigned32, -- index
hprRtpStatusStartTime DateAndTime, -- time stamp
hprRtpStatusEndTime DateAndTime, -- time stamp
hprRtpStatusRemNceId OCTET STRING, -- remote nce id
hprRtpStatusRemTcid OCTET STRING, -- remote tcid
hprRtpStatusRemCpName SnaControlPointName,-- remote cp name
hprRtpStatusNewRscv OCTET STRING, -- new rscv
hprRtpStatusOldRscv OCTET STRING, -- old rscv
hprRtpStatusCause INTEGER, -- cause
hprRtpStatusLastAttemptResult INTEGER -- result of last
}
hprRtpStatusLocNceId OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (1..8))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The local Network Connection Endpoint (NCE) of this RTP
connection. NCEs identify CPs, LUs, Boundary Functions (BFs),
and Route Setup (RS) components."
::= { hprRtpStatusEntry 1 }
hprRtpStatusLocTcid OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (8))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The local TCID of this RTP connection."
::= { hprRtpStatusEntry 2 }
hprRtpStatusIndex OBJECT-TYPE
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SYNTAX Unsigned32
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Table index. This value begins at one and is incremented
when a new entry is added to the table. It is an implementation
choice whether to run a single counter for all entries in the
table, or to run a separate counter for the entries for each
RTP connection. In the unlikely event of a wrap, it is
assumed that Management Stations will have the ability to
order table entries correctly."
::= { hprRtpStatusEntry 3 }
hprRtpStatusStartTime OBJECT-TYPE
SYNTAX DateAndTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time when the path switch began."
::= { hprRtpStatusEntry 4 }
hprRtpStatusEndTime OBJECT-TYPE
SYNTAX DateAndTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time when the path switch was ended, either successfully
or unsuccessfully."
::= { hprRtpStatusEntry 5 }
hprRtpStatusRemCpName OBJECT-TYPE
SYNTAX SnaControlPointName
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Administratively assigned network name for the remote node of
this RTP connection."
::= { hprRtpStatusEntry 6 }
hprRtpStatusRemNceId OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (1..8))
MAX-ACCESS read-only
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STATUS current
DESCRIPTION
"The remote Network Connection Endpoint (NCE) of this RTP
connection. NCEs identify CPs, LUs, Boundary Functions (BFs),
and Route Setup (RS) components."
::= { hprRtpStatusEntry 7 }
hprRtpStatusRemTcid OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (8))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The remote TCID of this RTP connection."
::= { hprRtpStatusEntry 8 }
hprRtpStatusNewRscv OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (0..255))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The new Route Selection Control Vector for this RTP
connection. A zero-length string indicates that no value is
available, perhaps because the implementation does not save
RSCVs."
::= { hprRtpStatusEntry 9 }
hprRtpStatusOldRscv OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (0..255))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The old Route Selection Control Vector for this RTP
connection. A zero-length string indicates that no value is
available, perhaps because the implementation does not save
RSCVs."
::= { hprRtpStatusEntry 10 }
hprRtpStatusCause OBJECT-TYPE
SYNTAX INTEGER {
other(1),
rtpConnFail(2),
locLinkFail(3),
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remLinkFail(4),
operRequest(5)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The reason for the path switch:
other(1) - Reason other than those listed below,
rtpConnFail(2) - RTP connection failure detected,
locLinkFail(3) - Local link failure,
remLinkFail(4) - Remote link failure (learned from TDUs),
operRequest(5) - Operator requested path switch. "
::= { hprRtpStatusEntry 11 }
hprRtpStatusLastAttemptResult OBJECT-TYPE
SYNTAX INTEGER { successful(1),
initiatorMoving(2),
directorySearchFailed(3),
rscvCalculationFailed(4),
negativeRouteSetupReply(5),
backoutRouteSetupReply(6),
timeoutDuringFirstAttempt(7),
otherUnsuccessful(8)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The result of the last completed path switch attempt. If the
path switch is aborted in the middle of a path switch attempt
because the path switch timer expires, the result of the
previous path switch attempt is reported.
The values are defined as follows:
successful(1) - The final path switch attempt
was successful.
initiatorMoving(2) - The final path switch attempt
failed because the initiator
is mobile, and there was no
active link out of this node.
directorySearchFailed(3) - The final path switch attempt
failed because a directory
search for the destination
node's CP name failed.
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rscvCalculationFailed(4) - The final path switch attempt
failed because an RSCV to the
node containing the remote
RTP endpoint could not be
calculated.
negativeRouteSetupReply(5) - The final path switch attempt
failed because route setup
failed for the new path.
backoutRouteSetupReply(6) - The final path switch attempt
failed because the remote RTP
endpoint refused to continue
the RTP connection.
timeoutDuringFirstAttempt(7) - The path switch timer expired
during the first path switch
attempt.
otherUnsuccessful(8) - The final path switch attempt
failed for a reason other
than those listed above."
::= { hprRtpStatusEntry 12 }
-- ***************************************************************
-- Conformance information
-- ***************************************************************
hprConformance OBJECT IDENTIFIER ::= { hprMIB 2 }
hprCompliances OBJECT IDENTIFIER ::= { hprConformance 1 }
hprGroups OBJECT IDENTIFIER ::= { hprConformance 2 }
-- Compliance statements
hprCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for the SNMPv2 entities that
implement the HPR MIB."
MODULE -- this module
-- Unconditionally mandatory groups
MANDATORY-GROUPS {
hprGlobalConfGroup,
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hprAnrRoutingConfGroup,
hprTransportUserConfGroup
}
-- Conditionally mandatory groups
GROUP hprRtpConfGroup
DESCRIPTION
"The hprRtpConfGroup is mandatory for HPR implementations
supporting the HPR transport tower."
::= { hprCompliances 1 }
-- Units of conformance
hprGlobalConfGroup OBJECT-GROUP
OBJECTS {
hprNodeCpName,
hprOperatorPathSwitchSupport
}
STATUS current
DESCRIPTION
"A collection of objects providing the instrumentation of HPR
general information and capabilities."
::= { hprGroups 1 }
hprAnrRoutingConfGroup OBJECT-GROUP
OBJECTS {
hprAnrsAssigned,
hprAnrCounterState,
hprAnrCounterStateTime,
hprAnrType,
hprAnrOutTgDest,
hprAnrOutTgNum,
hprAnrPacketsReceived,
hprAnrCounterDisconTime
}
STATUS current
DESCRIPTION
"A collection of objects providing instrumentation for the
node's ANR routing."
::= { hprGroups 2 }
hprTransportUserConfGroup OBJECT-GROUP
OBJECTS {
hprNceType,
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hprNceDefault,
hprNceInstanceId
}
STATUS current
DESCRIPTION
"A collection of objects providing information on the users of
the HPR transport known to the node."
::= { hprGroups 3 }
hprRtpConfGroup OBJECT-GROUP
OBJECTS {
hprRtpGlobeConnSetups,
hprRtpGlobeCtrState,
hprRtpGlobeCtrStateTime,
hprRtpRemCpName,
hprRtpRemNceId,
hprRtpRemTcid,
hprRtpPathSwitchTrigger,
hprRtpRscv,
hprRtpTopic,
hprRtpState,
hprRtpUpTime,
hprRtpLivenessTimer,
hprRtpShortReqTimer,
hprRtpPathSwTimer,
hprRtpLivenessTimeouts,
hprRtpShortReqTimeouts,
hprRtpMaxSendRate,
hprRtpMinSendRate,
hprRtpCurSendRate,
hprRtpSmRdTripDelay,
hprRtpSendPackets,
hprRtpRecvPackets,
hprRtpSendBytes,
hprRtpRecvBytes,
hprRtpRetrPackets,
hprRtpPacketsDiscarded,
hprRtpDetectGaps,
hprRtpRateReqSends,
hprRtpOkErrPathSws,
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hprRtpBadErrPathSws,
hprRtpOkOpPathSws,
hprRtpBadOpPathSws,
hprRtpCounterDisconTime,
hprRtpStatusStartTime,
hprRtpStatusEndTime,
hprRtpStatusRemNceId,
hprRtpStatusRemTcid,
hprRtpStatusRemCpName,
hprRtpStatusNewRscv,
hprRtpStatusOldRscv,
hprRtpStatusCause,
hprRtpStatusLastAttemptResult
}
STATUS current
DESCRIPTION
"A collection of objects providing the instrumentation for RTP
connection end points."
::= { hprGroups 4 }
-- end of conformance statement
END
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6. Acknowledgments
This MIB module is the product of the IETF SNA NAU MIB WG and the AIW
APPN/HPR MIBs SIG. Thanks to Ray Bird, IBM Corporation; Jim Cobban,
Nortel; and Laura Petrie, IBM Corporation, for their contributions and
review.
7. 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] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and S.
Waldbusser, "Textual Conventions for Version 2 of the Simple
Network Management Protocol (SNMPv2)", RFC 1903, January 1996.
[3] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and S.
Waldbusser, "Conformance Statements for Version 2 of the Simple
Network Management Protocol (SNMPv2)", RFC 1904, January 1996.
[4] Clouston, B., and B. Moore, "Definition of Managed Objects for
APPN", Cisco Systems, IBM Corporation, November 1996.
[5] IBM, APPN High Performance Routing Architecture Reference, SV40-
1018-00.
[6] IBM, SNA/MS Formats, GC31-8302-00
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8. Security Considerations
In most cases, MIBs are not themselves security risks; if SNMP security
is operating as intended, the use of a MIB to view information about a
system, or to change some parameter at the system, is a tool, not a
threat.
None of the read-only objects in the HPR MIB reports a password, user
data, or anything else that is particularly sensitive. Some enterprises
view their network configuration itself, as well as information about
network usage and performance, as corporate assets; such enterprises may
wish to restrict SNMP access to most of the objects in the MIB.
One read-write object in the MIB can affect network operations:
o hprRtpPathSwitchTrigger: Setting this object to 'switchPathNow'
triggers an immediate path switch attempt. An HPR path switch does
not itself disrupt the SNA sessions using the RTP connection
undergoing the path switch. However, frequent path switches for
many RTP connections can have an adverse impact on overall network
performance.
It is recommended that SNMP access to this object be restricted.
Other read-write objects control the gathering of network
management data; controlling access to these objects is less
critical.
9. Authors' Addresses
Bob Clouston
Cisco Systems
7025 Kit Creek Road
P.O. Box 14987
Research Triangle Park, NC 27709, USA
Tel: 1 919 472 2333
E-mail: clouston@cisco.com
Bob Moore
IBM Corporation
800 Park Offices Drive
CNMA/664
P.O. Box 12195
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Research Triangle Park, NC 27709, USA
Tel: 1 919 254 4436
E-mail: remoore@ralvm6.vnet.ibm.com
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10. Table of Contents
1. Status of this Memo .................................... 1
2. Introduction ........................................... 1
3. The SNMP Network Management Framework .................. 2
4. Overview ............................................... 2
4.1 HPR MIB structure ..................................... 4
5. Definitions ............................................ 6
6. Acknowledgments ........................................ 35
7. References ............................................. 35
8. Security Considerations ................................ 36
9. Author's Addresses ..................................... 36
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