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.

Table of Contents

  1.     Status of this Memo  ....................................  1
  2.     Introduction  ...........................................  1
  3.     The SNMP Network Management Framework  ..................  2
  4.     Overview  ...............................................  2
  4.1      DLUR MIB structure ....................................  3
  5.     Definitions  ............................................  5
  6.     Acknowledgments  ........................................ 18
  7.     References  ............................................. 19
  8.     Security Considerations  ................................ 19
  9.     Authors' Addresses  ..................................... 20
  10.    Full Copyright Statement ................................ 21

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







Clouston & Moore            Standards Track                     [Page 1]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


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 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:







Clouston & Moore            Standards Track                     [Page 2]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


  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].

4.1.  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.




Clouston & Moore            Standards Track                     [Page 3]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


4.1.1.  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.

4.1.2.  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.

4.1.3.  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.




Clouston & Moore            Standards Track                     [Page 4]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


5.  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



Clouston & Moore            Standards Track                     [Page 5]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


               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



Clouston & Moore            Standards Track                     [Page 6]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


         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



Clouston & Moore            Standards Track                     [Page 7]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


         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



Clouston & Moore            Standards Track                     [Page 8]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


         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.



Clouston & Moore            Standards Track                     [Page 9]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


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



Clouston & Moore            Standards Track                    [Page 10]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


     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 {



Clouston & Moore            Standards Track                    [Page 11]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


                    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 {



Clouston & Moore            Standards Track                    [Page 12]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


                     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



Clouston & Moore            Standards Track                    [Page 13]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


         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,



Clouston & Moore            Standards Track                    [Page 14]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


             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.



Clouston & Moore            Standards Track                    [Page 15]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


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

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



Clouston & Moore            Standards Track                    [Page 16]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


     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



Clouston & Moore            Standards Track                    [Page 17]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


         "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

6.  Acknowledgments

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




Clouston & Moore            Standards Track                    [Page 18]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


7.  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.

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 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.












Clouston & Moore            Standards Track                    [Page 19]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


9.  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]






























Clouston & Moore            Standards Track                    [Page 20]

RFC 2232         Managed Objects for DLUR using SMIv2      November 1997


10.  Full Copyright Statement

  Copyright (C) The Internet Society (1997).  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.
























Clouston & Moore            Standards Track                    [Page 21]