RFC2232

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Network Working Group B. Clouston, Editor Request for Comments: 2232 Cisco Systems Category: Standards Track B. Moore, Editor

                                                     IBM Corporation
                                                       November 1997
                 Definitions of Managed Objects
                      for DLUR using SMIv2

Status of this Memo

This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (1997). All Rights Reserved.

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 devices with DLUR (Dependent LU Requester) capabilities. This memo identifies managed objects for the DLUR protocol.

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.

Overview

This document identifies objects for monitoring the configuration and active characteristics of devices with DLUR capabilities. Dependent LU requester/server (DLUR/S) is an extension to the Advanced Peer- to-Peer Networking (APPN) architecture that provides dependent LU services in APPN networks. See the SNANAU APPN MIB [4] for management of APPN networks.

The base APPN architecture only provided for transport of data between independent logical units (LUs). However, customers have an enormous investment in applications based on dependent LU types. DLUR/S provides for support of dependent LU sessions in an APPN network.

A dependent LU server (DLUS) is an APPN node that provides System Services Control Point (SSCP) services over an APPN network to remote secondary dependent LUs by using SSCP-PU (physical unit) and SSCP-LU sessions whose flows are encapsulated on LU 6.2 session flows between the DLUS node and the appropriate dependent LU requester (DLUR) node. The secondary dependent LUs may be local to the DLUR node, or in adjacent type 2.0 or 2.1 nodes.

The LU 6.2 control sessions between a DLUS node and a DLUR node are referred to as a CPSVRMGR pipe. CPSVRMGR refers to the mode used for the sessions.

In this document, we describe DLUR managed objects.

The DLUR terms and overall architecture are described in [5].

Highlights of the management functions supported by the DLUR MIB module include the following:

o Identifying the node's DLUR capabilities

o Displaying the physical units (PUs) this node is supporting

o Identification of Dependent LU Servers

o Displaying the state of control sessions to Dependent LU

    Servers.

This MIB module does not support:

o Management of dependent LU servers

o Configuration of DLUR nodes.

o Changing the state of control session to the DLUS

o Displaying the dependent LUs this node is supporting

o Traps. The APPN MIB contains a trap for Alert conditions that

    may affect DLUR resources.  The value for the affectedObject
    object contained in the alertTrap is determined by the
    implementation.  It may contain a VariablePointer from the DLUR
    MIB.  The APPN/DLUR Alerts are defined in [6].

DLUR MIB Structure

Although DLUR is an extension to APPN, the DLUR MIB relies very little upon the APPN MIB. The dlurNodeCpName object in this MIB has the same value as the appnNodeCpName object in the APPN MIB. If the dlurPuLsName object in the MIB has the same value as the appnLsName object in the APPN MIB, then the two objects are referring to the same link station.

The DLUR MIB module contains the following collections of objects:

o dlurNodeInfo--objects representing the capabilities and

    architecture options supported by the DLUR implementation, as
    well as default primary and backup DLUSs.

o dlurPuInfo--objects describing the PUs that this APPN node is

    supporting with DLUR.

o dlurDlusInfo--objects describing the control sessions with

    DLUSs.

These are described below in more detail.

dlurNodeInfo group

The dlurNodeInfo group consists of the following objects and table:

1) dlurNodeCapabilities group

These objects represent the capabilities and options of the DLUR implementation, such as the release level of the implementation

2) dlurDefaultDefBackupDlusTable

This table identifies the list of defined backup DLUSs for all PUs served by this DLUR, if there is no specific DLUS backup list for the PU. The list is in descending order of preference as a backup DLUS.

dlurPuInfo group

The dlurPuInfo group consists of the following tables:

1) dlurPuTable

This table has an entry for each PU this node is supporting via DLUR, including the locally known name, the SSCP supplied name (if known), and the PU status.

2) dlurPuDefBackupDlusTable

This table contains the backup DLUS list defined on a PU basis. The table has an entry for each specifically defined backup DLUS on each PU. The first index to the entry is the PU name, which organizes the table by PU name. The second index is a ranking which further sorts the table in descending order of preference as a backup DLUS for the PU.

If a PU name is not found in this table, the dlurDefaultDefBackupDlusNameTable is used as a backup list for that PU.

dlurDlusInfo group

This group consists of the following table:

1) dlurDlusTable

This table contains information about the control sessions (CPSVRMGR pipes) with the DLUS, including the control point (CP) name of the DLUS and the status of the control session.

Definitions

APPN-DLUR-MIB DEFINITIONS ::= BEGIN

IMPORTS

    DisplayString, TruthValue
            FROM SNMPv2-TC
    OBJECT-TYPE, MODULE-IDENTITY, Unsigned32
            FROM SNMPv2-SMI
    MODULE-COMPLIANCE, OBJECT-GROUP
            FROM SNMPv2-CONF
    snanauMIB
            FROM SNA-NAU-MIB
    SnaControlPointName
            FROM APPN-MIB;

dlurMIB MODULE-IDENTITY

    LAST-UPDATED  "9705101500Z"
    ORGANIZATION  "IETF SNA NAU MIB WG / AIW APPN/HPR MIBs 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: [email protected]
                    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: [email protected]
            "
  DESCRIPTION
            "This is the MIB module for objects used to manage
            network devices with DLUR capabilities.  This MIB
            contains information that is useful for managing an APPN
            product that implements a DLUR (Dependent Logical Unit
            Requester).  The DLUR product has a client/server
            relationship with an APPN product that implements a DLUS
            (Dependent Logical Unit Server)."
= { snanauMIB 5 }

-- snanauMIB ::= { mib-2 34 }

-- ********************************************************************* -- Textual Convention -- ********************************************************************* -- SnaControlPointName is imported from the APPN MIB

-- *********************************************************************

 dlurObjects OBJECT IDENTIFIER ::= { dlurMIB 1 }

-- *********************************************************************

dlurNodeInfo OBJECT IDENTIFIER ::= { dlurObjects 1 } -- ********************************************************************* -- DLUR Capabilities of the node -- -- This group represents the capabilities and options of the DLUR -- implementation. -- ********************************************************************* dlurNodeCapabilities OBJECT IDENTIFIER ::= { dlurNodeInfo 1 }

dlurNodeCpName OBJECT-TYPE

  SYNTAX SnaControlPointName
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "Administratively assigned network name for the APPN node where
      this DLUR 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."
  ::= { dlurNodeCapabilities 1 }

dlurReleaseLevel OBJECT-TYPE

  SYNTAX DisplayString (SIZE (2))
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "The DLUR release level of this implementation.  This is the
      value that is encoded in the DLUR/DLUS Capabilites (CV 51).
      To insure consistent display, this one-byte value is encoded
      here as two displayable characters that are equivalent to a
      hexadecimal display.  For example, if the one-byte value as
      encoded in CV51 is X'01', this object will contain the
      displayable string '01'."
  ::= { dlurNodeCapabilities 2 }

dlurAnsSupport OBJECT-TYPE

  SYNTAX INTEGER {
                 continueOrStop(1),
                 stopOnly(2)
                 }
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "Automatic Network Shutdown (ANS) capability of this node.
          -  'continueOrStop' indicates that the DLUR implementation
             supports either ANS value (continue or stop) as
             specified by the DLUS on ACTPU for each PU.
          -  'stopOnly' indicates that the DLUR implementation only
             supports the ANS value of stop.
       ANS = continue means that the DLUR node will keep LU-LU
       sessions active even if SSCP-PU and SSCP-LU control sessions
       are interrupted.
       ANS = stop means that LU-LU sessions will be interrupted when
       the SSCP-PU and SSCP-LU sessions are interrupted."
  ::= { dlurNodeCapabilities 3 }

dlurMultiSubnetSupport OBJECT-TYPE

  SYNTAX TruthValue
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "Indication of whether this DLUR implementation can support
      CPSVRMGR sessions that cross NetId boundaries."
  ::= { dlurNodeCapabilities 4 }

dlurDefaultDefPrimDlusName OBJECT-TYPE

  SYNTAX SnaControlPointName
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "The SNA name of the defined default primary DLUS for all of
      the PUs served by this DLUR.  This can be overridden for a
      particular PU by a defined primary DLUS for that PU,
      represented by the dlurPuDefPrimDlusName object."
  ::= { dlurNodeCapabilities 5 }

dlurNetworkNameForwardingSupport OBJECT-TYPE

  SYNTAX TruthValue
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "Indication of whether this DLUR implementation supports
      forwarding of Network Name control vectors on ACTPUs and
      ACTLUs to DLUR-served PUs and their associated LUs.
      This object corresponds to byte 9. bit 3 of cv51."
  ::= { dlurNodeCapabilities 6 }

dlurNondisDlusDlurSessDeactSup OBJECT-TYPE

  SYNTAX TruthValue
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "Indication of whether this DLUR implementation supports
      nondisruptive deactivation of its DLUR-DLUS sessions.
      Upon receiving from a DLUS an UNBIND for the CPSVRMGR pipe
      with sense data X'08A0 000B', a DLUR that supports this
      option immediately begins attempting to activate a CPSVRMGR
      pipe with a DLUS other than the one that sent the UNBIND.
      This object corresponds to byte 9. bit 4 of cv51."
  ::= { dlurNodeCapabilities 7 }

-- ********************************************************************* -- DLUR default defined backup DLUS table -- *********************************************************************

dlurDefaultDefBackupDlusTable OBJECT-TYPE

  SYNTAX SEQUENCE OF DlurDefaultDefBackupDlusEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "This table contains an ordered list of defined backup DLUSs
      for all of the PUs served by this DLUR.  These can be
      overridden for a particular PU by a list of defined backup
      DLUSs for that PU, represented by the
      dlurPuDefBackupDlusNameTable.  Entries in this table are
      ordered from most preferred default backup DLUS to least
      preferred."
  ::= { dlurNodeInfo 2 }

dlurDefaultDefBackupDlusEntry OBJECT-TYPE

  SYNTAX DlurDefaultDefBackupDlusEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "This table is indexed by an integer-valued index, which
      orders the entries from most preferred default backup DLUS
      to least preferred."
  INDEX { dlurDefaultDefBackupDlusIndex }
  ::= { dlurDefaultDefBackupDlusTable 1 }

DlurDefaultDefBackupDlusEntry ::= SEQUENCE {

  dlurDefaultDefBackupDlusIndex      Unsigned32,
  dlurDefaultDefBackupDlusName       SnaControlPointName
                 }

dlurDefaultDefBackupDlusIndex OBJECT-TYPE

  SYNTAX Unsigned32 (1..4294967295)
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "Index for this table.  The index values start at 1,
      which identifies the most preferred default backup DLUS."
  ::= { dlurDefaultDefBackupDlusEntry 1 }

dlurDefaultDefBackupDlusName OBJECT-TYPE

  SYNTAX SnaControlPointName
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "Fully qualified name of a default backup DLUS for PUs served
      by this DLUR."
  ::= { dlurDefaultDefBackupDlusEntry 2 }

-- ********************************************************************* -- PU Information -- -- The following table carries information about the PUs that this APPN -- node is supporting via DLUR.

-- ********************************************************************* dlurPuInfo OBJECT IDENTIFIER ::= { dlurObjects 2 }

dlurPuTable OBJECT-TYPE

  SYNTAX SEQUENCE OF DlurPuEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "Information about the PUs supported by this DLUR."
  ::= { dlurPuInfo 1 }

dlurPuEntry OBJECT-TYPE

  SYNTAX DlurPuEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "Entry in a table of PU information, indexed by PU name."
  INDEX { dlurPuName  }
  ::= { dlurPuTable 1 }

DlurPuEntry ::= SEQUENCE {

  dlurPuName                  DisplayString,
  dlurPuSscpSuppliedName      DisplayString,
  dlurPuStatus                INTEGER,
  dlurPuAnsSupport            INTEGER,
  dlurPuLocation              INTEGER,
  dlurPuLsName                DisplayString,
  dlurPuDlusSessnStatus       INTEGER,
  dlurPuActiveDlusName        DisplayString,
  dlurPuDefPrimDlusName       DisplayString
                 }

dlurPuName OBJECT-TYPE

  SYNTAX DisplayString (SIZE (1..17))
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "Locally administered name of the PU."
  ::= { dlurPuEntry 1 }

dlurPuSscpSuppliedName OBJECT-TYPE

  SYNTAX DisplayString (SIZE (0..17))
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "The SNA name of the PU.  This value is supplied to a PU by the
      SSCP that activated it.  If a value has not been supplied, a
      zero-length string is returned."
  ::= { dlurPuEntry 2 }

dlurPuStatus OBJECT-TYPE

  SYNTAX INTEGER {
                  reset(1),
                  pendReqActpuRsp(2),
                  pendActpu(3),
                  pendActpuRsp(4),
                  active(5),
                  pendLinkact(6),
                  pendDactpuRsp(7),
                  pendInop(8),
                  pendInopActpu(9)
                 }
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "Status of the DLUR-supported PU.  The following values are
      defined:
         reset(1)           -  reset
         pendReqActpuRsp(2) -  pending a response from the DLUS
                               to a Request ACTPU
         pendActpu(3)       -  pending an ACTPU from the DLUS
         pendActpuRsp(4)    -  pending an ACTPU response from the PU
         active(5)          -  active
         pendLinkact(6)     -  pending activation of the link to a
                               downstream PU
         pendDactpuRsp(7)   -  pending a DACTPU response from the PU
         pendInop(8)        -  the CPSVRMGR pipe became inoperative
                               while the DLUR was pending an ACTPU
                               response from the PU
         pendInopActpu(9)   -  when the DLUR was in the pendInop
                               state, a CPSVRMGR pipe became active
                               and a new ACTPU was received over it,
                               before a response to the previous
                               ACTPU was received from the PU."
  ::= { dlurPuEntry 3 }

dlurPuAnsSupport OBJECT-TYPE

  SYNTAX INTEGER {
                 continue(1),
                 stop(2)
                 }
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "The Automatic Network Shutdown (ANS) support configured for
      this PU.  This value (as configured by the network
      administrator) is sent by DLUS with ACTPU for each PU.
          -  'continue' means that the DLUR node will attempt to keep
             LU-LU sessions active even if SSCP-PU and SSCP-LU
             control sessions are interrupted.
          -  'stop' means that LU-LU sessions will be interrupted
             when the SSCP-PU and SSCP-LU sessions are interrupted."
  ::= { dlurPuEntry 4 }

dlurPuLocation OBJECT-TYPE

  SYNTAX INTEGER {
                  internal(1),
                  downstream(2) }
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "Location of the DLUR-support PU:
          internal(1)   - internal to the APPN node itself (no link)
          downstream(2) - downstream of the APPN node (connected via
                          a link)."
  ::= { dlurPuEntry 5 }

dlurPuLsName OBJECT-TYPE

  SYNTAX DisplayString (SIZE (0..10))
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "Administratively assigned name of the link station through
      which a downstream PU is connected to this DLUR.  A zero-length
      string is returned for internal PUs.  If this object has the
      same value as the appnLsName object in the APPN MIB, then the
      two are identifying the same link station."
  ::= { dlurPuEntry 6 }

dlurPuDlusSessnStatus OBJECT-TYPE

  SYNTAX INTEGER {
                  reset(1),
                  pendingActive(2),
                  active(3),
                  pendingInactive(4)
                 }
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "Status of the control session to the DLUS identified in
      dlurPuActiveDlusName.  This is a combination of the separate
      states for the contention-winner and contention-loser sessions:
      reset(1)           - none of the cases below
      pendingActive(2)   - either contention-winner session or
                           contention-loser session is pending active
      active(3)          - contention-winner and contention-loser
                           sessions are both active
      pendingInactive(4) - either contention-winner session or
                           contention-loser session is pending
                           inactive - this test is made AFTER the
                           'pendingActive' test.
      The following matrix provides a different representation of
      how the values of this object are related to the individual
      states of the contention-winner and contention-loser sessions:
           Conwinner
           | pA | pI | A | X = !(pA | pI | A)
      C ++++++++++++++++++++++++++++++++++
      o pA | 2  |  2 | 2 | 2
      n ++++++++++++++++++++++++++++++++++
      l pI | 2  |  4 | 4 | 4
      o ++++++++++++++++++++++++++++++++++
      s A  | 2  |  4 | 3 | 1
      e ++++++++++++++++++++++++++++++++++
      r X  | 2  |  4 | 1 | 1
        ++++++++++++++++++++++++++++++++++
      "
  ::= { dlurPuEntry 7 }

dlurPuActiveDlusName OBJECT-TYPE

  SYNTAX DisplayString (SIZE (0..17))
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "The SNA name of the active DLUS for this PU.  If its length
      is not zero, this name follows the SnaControlPointName textual
      convention.  A zero-length string indicates that the PU does
      not currently have an active DLUS."
  ::= { dlurPuEntry 8 }

dlurPuDefPrimDlusName OBJECT-TYPE

  SYNTAX DisplayString (SIZE (0..17))
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "The SNA name of the defined primary DLUS for this PU, if one
      has been defined.  If present, this name follows the
      SnaControlPointName textual convention.  A zero-length string
      indicates that no primary DLUS has been defined for this PU, in
      which case the global default represented by the
      dlurDefaultDefPrimDlusName object is used."
  ::= { dlurPuEntry 9 }

-- ***************************************** -- Defined backup DLUS table for a PU -- *****************************************

dlurPuDefBackupDlusTable OBJECT-TYPE

  SYNTAX SEQUENCE OF DlurPuDefBackupDlusEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "This table contains an ordered list of defined backup DLUSs
      for those PUs served by this DLUR that have their own defined
      backup DLUSs.  PUs that have no entries in this table use the
      global default backup DLUSs for the DLUR, represented by the
      dlurDefaultDefBackupDlusNameTable.  Entries in this table are
      ordered from most preferred backup DLUS to least preferred for
      each PU."
  ::= { dlurPuInfo 2 }

dlurPuDefBackupDlusEntry OBJECT-TYPE

  SYNTAX DlurPuDefBackupDlusEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "This table is indexed by PU name and by an integer-valued
      index, which orders the entries from most preferred backup DLUS
      for the PU to least preferred."
  INDEX { dlurPuDefBackupDlusPuName,
          dlurPuDefBackupDlusIndex }
  ::= { dlurPuDefBackupDlusTable 1 }

DlurPuDefBackupDlusEntry ::= SEQUENCE {

  dlurPuDefBackupDlusPuName          DisplayString,
  dlurPuDefBackupDlusIndex           Unsigned32,
  dlurPuDefBackupDlusName            SnaControlPointName
                 }

dlurPuDefBackupDlusPuName OBJECT-TYPE

  SYNTAX DisplayString (SIZE (1..17))
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "Locally administered name of the PU.  If this object has the
      same value as the dlurPuName object, then the two are
      identifying the same PU."
  ::= { dlurPuDefBackupDlusEntry 1 }

dlurPuDefBackupDlusIndex OBJECT-TYPE

  SYNTAX Unsigned32 (1..4294967295)
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "Secondary index for this table.  The index values start at 1,
      which identifies the most preferred backup DLUS for the PU."
  ::= { dlurPuDefBackupDlusEntry 2 }

dlurPuDefBackupDlusName OBJECT-TYPE

  SYNTAX SnaControlPointName
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "Fully qualified name of a backup DLUS for this PU."
  ::= { dlurPuDefBackupDlusEntry 3 }

-- ********************************************************************* -- DLUS Control Sessions (CPSVRMGR Pipes) -- -- This table contains information about DLUS control sessions, also -- known as CPSVRMGR pipes. Although DLUR uses a pair of CPSVRMGR -- sessions for communication, for the purpose of status, information -- about these two sessions is combined to yield a single status for the -- requester/server connection.

-- *********************************************************************

dlurDlusInfo OBJECT IDENTIFIER ::= { dlurObjects 3 }

dlurDlusTable OBJECT-TYPE

  SYNTAX SEQUENCE OF DlurDlusEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
       "Information about DLUS control sessions."
  ::= { dlurDlusInfo 1}

dlurDlusEntry OBJECT-TYPE

  SYNTAX DlurDlusEntry
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
       "This entry is indexed by the name of the DLUS."
  INDEX { dlurDlusName }
  ::= { dlurDlusTable 1 }

DlurDlusEntry ::= SEQUENCE {

  dlurDlusName          SnaControlPointName,
  dlurDlusSessnStatus   INTEGER
                 }

dlurDlusName OBJECT-TYPE

  SYNTAX SnaControlPointName
  MAX-ACCESS not-accessible
  STATUS current
  DESCRIPTION
      "The SNA name of a DLUS with which this DLUR currently has a
      CPSVRMGR pipe established."
  ::= { dlurDlusEntry 1 }

dlurDlusSessnStatus OBJECT-TYPE

  SYNTAX INTEGER {
                  reset(1),
                  pendingActive(2),
                  active(3),
                  pendingInactive(4)
                 }
  MAX-ACCESS read-only
  STATUS current
  DESCRIPTION
      "Status of the CPSVRMGR pipe between the DLUR and this DLUS.
      This is a combination of the separate states for the
      contention-winner and contention-loser sessions:
      reset(1)           - none of the cases below
      pendingActive(2)   - either contention-winner session or
                           contention-loser session is pending active
      active(3)          - contention-winner and contention-loser
                           sessions are both active
      pendingInactive(4) - either contention-winner session or
                           contention-loser session is pending
                           inactive - this test is made AFTER the
                           'pendingActive' test.
      The following matrix provides a different representation of
      how the values of this object are related to the individual
      states of the contention-winner and contention-loser sessions:
           Conwinner
           | pA | pI | A | X = !(pA | pI | A)
      C ++++++++++++++++++++++++++++++++++
      o pA | 2  |  2 | 2 | 2
      n ++++++++++++++++++++++++++++++++++
      l pI | 2  |  4 | 4 | 4
      o ++++++++++++++++++++++++++++++++++
      s A  | 2  |  4 | 3 | 1
      e ++++++++++++++++++++++++++++++++++
      r X  | 2  |  4 | 1 | 1
        ++++++++++++++++++++++++++++++++++
      "
  ::= { dlurDlusEntry 2 }

-- *************************************************************** -- Conformance information -- ***************************************************************

dlurConformance OBJECT IDENTIFIER ::= { dlurMIB 2 }

dlurCompliances OBJECT IDENTIFIER ::= { dlurConformance 1 } dlurGroups OBJECT IDENTIFIER ::= { dlurConformance 2 }

-- Compliance statements

dlurCompliance MODULE-COMPLIANCE

  STATUS current
  DESCRIPTION
      "The compliance statement for the SNMPv2 entities which
      implement the DLUR MIB."
  MODULE -- this module

-- Unconditionally mandatory groups

  MANDATORY-GROUPS  { dlurConfGroup }
  ::= { dlurCompliances 1 }

-- Units of conformance dlurConfGroup OBJECT-GROUP

  OBJECTS {
           dlurNodeCpName,
           dlurReleaseLevel,
           dlurAnsSupport,
           dlurMultiSubnetSupport,
           dlurNetworkNameForwardingSupport,
           dlurNondisDlusDlurSessDeactSup,
           dlurDefaultDefPrimDlusName,
           dlurDefaultDefBackupDlusName,
           dlurPuSscpSuppliedName,
           dlurPuStatus,
           dlurPuAnsSupport,
           dlurPuLocation,
           dlurPuLsName,
           dlurPuDlusSessnStatus,
           dlurPuActiveDlusName,
           dlurPuDefPrimDlusName,
           dlurPuDefBackupDlusName,
           dlurDlusSessnStatus
          }
  STATUS current
  DESCRIPTION
      "A collection of objects providing information on an
      implementation of APPN DLUR."
  ::= { dlurGroups 1 }

-- end of conformance statement

END

Acknowledgments

This MIB module is the product of the IETF SNA NAU MIB WG and the AIW APPN/HPR MIBs SIG.

References

[1] 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] 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] 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", RFC 2155, June 1997.

[5] IBM, Systems Network Architecture Advanced Peer-to-Peer

    Networking Dependent LU Requester Architecture Reference,
    Version 1.2, SV40-1010-01, December 1995.

[6] IBM, SNA/MS Formats, GC31-8302-00.

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 DLUR 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.

There are no read-write objects in the DLUR MIB.

Authors' Addresses

Bob Clouston Cisco Systems 7025 Kit Creek Road P.O. Box 14987 Research Triangle Park, NC 27709, USA

Phone: +1 919 472 2333 EMail: [email protected]

Bob Moore IBM Corporation 800 Park Offices Drive CNMA/664 P.O. Box 12195 Research Triangle Park, NC 27709, USA

Phone: +1 919 254 4436 EMail: [email protected]

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