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Network Working Group                                          M. GreeneRequest for Comments: 2677                                    ContractorCategory: Standards Track                                   J. Cucchiara                                                     IronBridge Networks                                                              J. Luciani                                                            Bay Networks                                                             August 1999Definitions of Managed Objects forthe NBMA Next Hop Resolution Protocol (NHRP)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 (1999).  All Rights Reserved.Abstract   This memo defines a portion of the Management Information Base (MIB)   for use with network management protocols in the Internet community.   In particular, it describes managed objects for the Next Hop   Resolution Protocol (NHRP) as defined inRFC 2332.Table of Contents1 Introduction .................................................22 The SNMP Management Framework ................................23 Structure of the MIB .........................................33.1 The NHRP General Group .....................................33.1.1 The NHRP Cache Table .....................................43.1.2 The NHRP Purge Request Table .............................43.2 The NHRP Client Group ......................................43.2.1 The NHRP Client Table ....................................43.2.2 The NHRP Client Registration Table .......................53.2.3 The NHRP Client NHS Table ................................53.2.4 The NHRP Client Statistics Table .........................53.3 The NHRP Server Group ......................................53.3.1 The NHRP Server Table ....................................53.3.2 The NHRP Server Cache Table ..............................53.3.3 The NHRP Server NHC Table ................................6Greene, et al.              Standards Track                     [Page 1]

RFC 2677                        NHRP MIB                     August 19993.3.4 The NHRP Server Statistics Table .........................64 NBMA Next Hop Resolution Protocol MIB Definitions ............65 IANA Considerations ..........................................626 Security .....................................................627 Intellectual Property ........................................638 Acknowledgments ..............................................639 References ...................................................6410 Authors' Addresses ..........................................6611 Full Copyright Statement ....................................671.  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 describes managed objects for the Next Hop   Resolution Protocol (NHRP) as defined inRFC 2332 [17].   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this   document are to be interpreted as described inRFC 2119 [21].2.  The SNMP Management Framework   The SNMP Management Framework presently consists of five major   components:    o   An overall architecture, described inRFC 2571 [1].    o   Mechanisms for describing and naming objects and events for the        purpose of management. The first version of this Structure of        Management Information (SMI) is called SMIv1 and described in        STD 16,RFC 1155 [2], STD 16,RFC 1212 [3] andRFC 1215 [4]. The        second version, called SMIv2, is described in STD 58,RFC 2578        [5], STD 58,RFC 2579 [6] and STD 58,RFC 2580 [7].    o   Message protocols for transferring management information. The        first version of the SNMP message protocol is called SNMPv1 and        described in STD 15,RFC 1157 [8]. A second version of the SNMP        message protocol, which is not an Internet standards track        protocol, is called SNMPv2c and described inRFC 1901 [9] andRFC1906 [10].  The third version of the message protocol is called        SNMPv3 and described inRFC 1906 [10],RFC 2572 [11] andRFC 2574        [12].Greene, et al.              Standards Track                     [Page 2]

RFC 2677                        NHRP MIB                     August 1999    o   Protocol operations for accessing management information. The        first set of protocol operations and associated PDU formats is        described in STD 15,RFC 1157 [8]. A second set of protocol        operations and associated PDU formats is described inRFC 1905        [13].    o   A set of fundamental applications described inRFC 2573 [14] and        the view-based access control mechanism described inRFC 2575        [15].   A more detailed introduction to the current SNMP Management Framework   can be found inRFC 2570 [16].   Managed objects are accessed via a virtual information store, termed   the Management Information Base or MIB.  Objects in the MIB are   defined using the mechanisms defined in the SMI.   This memo specifies a MIB module that is compliant to the SMIv2. A   MIB conforming to the SMIv1 can be produced through the appropriate   translations. The resulting translated MIB must be semantically   equivalent, except where objects or events are omitted because no   translation is possible (use of Counter64). Some machine readable   information in SMIv2 will be converted into textual descriptions in   SMIv1 during the translation process. However, this loss of machine   readable information is not considered to change the semantics of the   MIB.3.  Structure of the MIB   The NHRP MIB contains three groups: the General Group, the Client   Group, and the Server Group.3.1.  The NHRP General Group   The General Group contains objects that apply to both clients and   servers -- in particular the nhrpNextIndex scalar object,  the NHRP   Cache Table and the NHRP Purge Request Table.   The nhrpNextIndex scalar object is used to provide unique indices for   the nhprClientIndex in the nhrpClientTable and the nhrpServerIndex in   the nhrpServerTable.  If used consistently, this object may prevent   conflicts when multiple managers attempt to create rows   simultaneously in the same table.Greene, et al.              Standards Track                     [Page 3]

RFC 2677                        NHRP MIB                     August 19993.1.1.  The NHRP Cache Table   The NHRP Cache Table represents the internetwork layer address to   NBMA address cache that is maintained by both NHRP clients and NHRP   servers.   The NHRP Cache Table contains an ifIndex as part of the Index Clause.   This ifIndex represents the use of a generic ifIndex, such that the   value of this ifIndex SHOULD reflect a specific NBMA subnetwork   related interface as determined by an implementation.  For example,   assuming that the NBMA subnetwork is ATM, then it is up to the   implementors of this MIB to determine their own ATM interface   layering (assuming compliance with the IF-MIB,RFC 2233 [18] and the   ATM-MIB,RFC 2515 [19]).  In other words, assuming that the NBMA   subnetwork is ATM, the ifIndex in the NHRP Cache Table would   represent the ifIndex containing or consisting of the VC (or   shortcut) denoted by this Table entry.   The indexing scheme for the NHRP Cache Table is very similar to the   MPC Ingress Cache Table and the MPS Ingress Cache Table in the   Multiprotocol Over ATM (MPOA) MIB [23].  This MIB and the MPOA MIB   were designed to be complementary and non-overlapping.  The MPOA MIB   should also support this MIB.  The MPOA MIB was designed prior to   this MIB, and was designed by the LANE/MPOA Working Group in the ATM   FORUM.   The indexing scheme of the NHRP Cache Table (and the NHRP   Server Cache Table) reflect the indexing scheme of the MPC Ingress   Cache Table and the MPS Ingress Cache Table.  Although, other   indexing schemes could have been used for the NHRP Cache Table, a   consistent indexing scheme between these tables was thought to be   more advantageous from an implementation standpoint.3.1.2.  The NHRP Purge Request Table   The NHRP Purge Request Table is a way to track Purge Request   Information.3.2.  The NHRP Client Group   The Client Group contains objects that only apply to NHRP clients   (NHCs).3.2.1.  The NHRP Client Table   The NHRP Client Table contains entries for NHRP Next Hop Clients   (NHCs) associated with this agent.  Each row in the table represents   a single NHC.  The RequestID used in Registration requests needs to   be saved to non-volatile storage.  Depending upon the implementation,Greene, et al.              Standards Track                     [Page 4]

RFC 2677                        NHRP MIB                     August 1999   this may or may not impact how the StorageType is used.  For a   complete description of how the Registration RequestID is used, see   Section 5.2.3 of [17].3.2.2.  The NHRP Client Registration Table   The NHRP Client Registration Table contains information on   registration requests which need to be maintained by the Clients.   Each entry in this table represents a single registration request.   Note:  since the NHRP specification does not mandate a refresh   algorithm, this table omits refresh information, however, this table   does contain information for all the registration requests which need   to be maintained by the NHRP Clients.3.2.3.  The NHRP Client NHS Table   The NHRP Client NHS Table contains the NBMA subnetwork addresses of   servers configured for use by the client.  By default, the agent will   add an entry to this table which corresponds to the client's default   router.3.2.4.  The NHRP Client Statistics Table   The NHRP Client Statistics Table contains NHRP statistics maintained   by a client.  These statistics include counters on requests and   replies, as well as counters for errors which are encountered by the   Clients.3.3.  The NHRP Server Group   The Server Group contains objects that only apply to NHRP servers   (NHSes).3.3.1.  The NHRP Server Table   The NHRP Server Table contains entries for each server associated   with this agent.3.3.2.  The NHRP Server Cache Table   The NHRP Server Cache Table contains additional objects that a server   keeps for each entry in its cache. This table extends the NHRP Cache   Table defined in the General Group.Greene, et al.              Standards Track                     [Page 5]

RFC 2677                        NHRP MIB                     August 19993.3.3.  The NHRP Server NHC Table   This table contains information about all the Clients known to the   Servers.3.3.4.  The NHRP Server Statistics Table   The NHRP Server Statistics Table contains NHRP statistics maintained   by a server.  These statistics include counters on requests and   replies, as well as counters for errors which are encountered by the   Servers.4.  NBMA Next Hop Resolution Protocol MIB Definitions   NHRP-MIB DEFINITIONS ::= BEGIN   IMPORTS       OBJECT-TYPE, MODULE-IDENTITY, mib-2, Integer32,       Counter32, Unsigned32           FROM SNMPv2-SMI       MODULE-COMPLIANCE, OBJECT-GROUP           FROM SNMPv2-CONF       TEXTUAL-CONVENTION, TruthValue, RowStatus, StorageType,       TimeStamp           FROM SNMPv2-TC       ifIndex           FROM IF-MIB       AddressFamilyNumbers           FROM IANA-ADDRESS-FAMILY-NUMBERS-MIB       ;   nhrpMIB MODULE-IDENTITY       LAST-UPDATED "9908260000Z"  -- August 26, 1999       ORGANIZATION "Internetworking Over NBMA (ion) Working Group"       CONTACT-INFO           "Maria Greene (maria@xedia.com)            Contractor            Joan Cucchiara (joan@ironbridgenetworks.com)            IronBridge Networks            James V. Luciani (luciani@baynetworks.com)            Bay Networks"Greene, et al.              Standards Track                     [Page 6]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "This MIB contains managed object definitions for the Next           Hop Resolution Procol, NHRP, as defined inRFC 2332 [17]."       -- revision history       REVISION     "9908260000Z"  -- August 26, 1999       DESCRIPTION  "Initial version, published asRFC 2677."       ::= { mib-2 71 }   --****************************************************************    -- NHRP Textual Conventions    --****************************************************************    NhrpGenAddr ::= TEXTUAL-CONVENTION        STATUS      current        DESCRIPTION            "The value of an internetwork layer or NBMA address."        SYNTAX      OCTET STRING (SIZE (0..64))    nhrpObjects OBJECT IDENTIFIER ::= { nhrpMIB 1 }    --****************************************************************    -- NHRP General (Client and Server) Objects    --****************************************************************    nhrpGeneralObjects OBJECT IDENTIFIER ::= { nhrpObjects 1 }    --    --  The following scalar is to be used to    --  provided indices for the    --  nhrpClientTable, and/or the nhrpServerTable.    --    nhrpNextIndex   OBJECT-TYPE        SYNTAX      Unsigned32        MAX-ACCESS  read-only        STATUS      current        DESCRIPTION            "This scalar is used for creating rows in the            nhrpClientTable and the nhrpServerTable.            The value of this variable is a currently unused value            for nhrpClientIndex and nhrpServerIndex.Greene, et al.              Standards Track                     [Page 7]

RFC 2677                        NHRP MIB                     August 1999            The value returned when reading this variable must be            unique for the NHC's and NHS's indices associated with            this row. Subsequent attempts to read this variable            must return different values.            NOTE:  this object exists in the General Group because            it is to be used in establishing rows in the            nhrpClientTable and the nhrpServerTable.  In other words,            the value retrieved from this object could become the            value of nhrpClientIndex and nhprServerIndex.            In the situation of an agent re-initialization the value            of this object must be saved in non-volatile storage.            This variable will return the special value 0 if no new            rows can be created."        ::= { nhrpGeneralObjects 1 }        --        -- The NHRP Cache Table        --        nhrpCacheTable OBJECT-TYPE            SYNTAX      SEQUENCE OF NhrpCacheEntry            MAX-ACCESS  not-accessible            STATUS      current       DESCRIPTION           "This table contains mappings between internetwork layer           addresses and NBMA subnetwork layer addresses."       ::= { nhrpGeneralObjects 2 }   nhrpCacheEntry OBJECT-TYPE       SYNTAX      NhrpCacheEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "A cached mapping between an internetwork layer address           and an NBMA address. Entries can be created by the           network administrator using the nhrpCacheRowStatus           column, or they may be added dynamically based on           protocol operation (including NHRP, SCSP, and others,           such as ATMARP).           When created based by NHRP protocol operations           this entry is largely based on contents contained in           the Client Information Entry (CIE).Greene, et al.              Standards Track                     [Page 8]

RFC 2677                        NHRP MIB                     August 1999           Zero or more Client Information Entries (CIEs) may be           included in the NHRP Packet. For a complete description           of the CIE, refer toSection 5.2.0.1 of           RFC 2332 [17]."       INDEX       {                       nhrpCacheInternetworkAddrType,                       nhrpCacheInternetworkAddr,                       ifIndex,                       nhrpCacheIndex                   }       ::= { nhrpCacheTable 1 }   NhrpCacheEntry ::= SEQUENCE {       nhrpCacheInternetworkAddrType    AddressFamilyNumbers,       nhrpCacheInternetworkAddr        NhrpGenAddr,       nhrpCacheIndex                   Unsigned32,       nhrpCachePrefixLength            Integer32,       nhrpCacheNextHopInternetworkAddr NhrpGenAddr,       nhrpCacheNbmaAddrType            AddressFamilyNumbers,       nhrpCacheNbmaAddr                NhrpGenAddr,       nhrpCacheNbmaSubaddr             NhrpGenAddr,       nhrpCacheType                    INTEGER,       nhrpCacheState                   INTEGER,       nhrpCacheHoldingTimeValid        TruthValue,       nhrpCacheHoldingTime             Unsigned32,       nhrpCacheNegotiatedMtu           Integer32,       nhrpCachePreference              Integer32,       nhrpCacheStorageType             StorageType,       nhrpCacheRowStatus               RowStatus   }   nhrpCacheInternetworkAddrType OBJECT-TYPE       SYNTAX      AddressFamilyNumbers       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "The internetwork layer address type of this Next Hop           Resolution Cache entry. The value of this object indicates           how to interpret the values of nhrpCacheInternetworkAddr           and nhrpCacheNextHopInternetworkAddr."       ::= { nhrpCacheEntry 1 }   nhrpCacheInternetworkAddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  not-accessible       STATUS      currentGreene, et al.              Standards Track                     [Page 9]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "The value of the internetwork address of the           destination."       ::= { nhrpCacheEntry 2 }   nhrpCacheIndex OBJECT-TYPE       SYNTAX      Unsigned32 (1..4294967295)       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "An identifier for this entry that has local           significance within the scope of the General           Group.  This identifier is used here to           uniquely identify this row, and also used           in the 'nhrpPurgeTable' for the value of           the 'nhrpPurgeCacheIdentifier'."       ::= { nhrpCacheEntry 3 }   nhrpCachePrefixLength OBJECT-TYPE       SYNTAX      Integer32 (0..255)       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of bits that define the internetwork layer           prefix associated with the nhrpCacheInternetworkAddr."       ::= { nhrpCacheEntry 4 }   nhrpCacheNextHopInternetworkAddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The value of the internetwork address of the next hop."       ::= { nhrpCacheEntry 5 }   nhrpCacheNbmaAddrType OBJECT-TYPE       SYNTAX      AddressFamilyNumbers       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The NBMA address type. The value of this           object indicates how to interpret           the values of nhrpCacheNbmaAddr and           nhrpCacheNbmaSubaddr."       ::= { nhrpCacheEntry 6 }Greene, et al.              Standards Track                    [Page 10]

RFC 2677                        NHRP MIB                     August 1999   nhrpCacheNbmaAddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The value of the NBMA subnetwork address of the next           hop."       ::= { nhrpCacheEntry 7 }   nhrpCacheNbmaSubaddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The value of the NBMA subaddress of the next hop. If           there is no subaddress concept for the NBMA address           family, this value will be a zero-length OCTET STRING."       ::= { nhrpCacheEntry 8 }   nhrpCacheType OBJECT-TYPE       SYNTAX      INTEGER {                       other(1),                       register(2),                       resolveAuthoritative(3),                       resoveNonauthoritative(4),                       transit(5),                       administrativelyAdded(6),                       atmarp(7),                       scsp(8)                   }       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "An indication of how this cache entry           was created. The values are:           'other(1)'                   The entry was added by some                                        other means.           'register(2)'                In a server, added based on a                                        client registration.           'resolveAuthoritative(3)'    In a client, added based on                                        receiving an Authoritative                                        NHRP Resolution Reply.Greene, et al.              Standards Track                    [Page 11]

RFC 2677                        NHRP MIB                     August 1999           'resolveNonauthoritative(4)' In a client, added based on                                        receiving a Nonauthoritative                                        NHRP Resolution Reply.           'transit(5)'                 In a transit server, added by                                        examining a forwarded NHRP                                        packet.           'administrativelyAdded(6)'   In a client or server,                                        manually added by the                                        administrator. The                                        StorageType of this entry is                                        reflected in                                        'nhrpCacheStorageType'.           'atmarp(7)'                  The entry was added due to an                                        ATMARP.           'scsp(8)'                    The entry was added due to                                        SCSP.           When the entry is under creation using the           nhrpCacheRowStatus column, the only value that can be           specified by the administrator is 'administrativelyAdded'.           Attempting to set any other value will cause an           'inconsistentValue' error.           The value cannot be modified once the entry is active."       ::= { nhrpCacheEntry 9 }   nhrpCacheState OBJECT-TYPE       SYNTAX      INTEGER {                       incomplete(1),                       ackReply(2),                       nakReply(3)                   }       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "An indication of the state of this entry. The values are:               'incomplete(1)' The client has sent a NHRP Resolution                               Request but has not yet received the                               NHRP Resolution Reply.Greene, et al.              Standards Track                    [Page 12]

RFC 2677                        NHRP MIB                     August 1999               'ackReply(2)'   For a client or server, this is a                               cached valid mapping.               'nakReply(3)'   For a client or server, this is a                               cached NAK mapping."       ::= { nhrpCacheEntry 10 }   nhrpCacheHoldingTimeValid OBJECT-TYPE       SYNTAX      TruthValue       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "True(1) is returned if the value of           'nhrpCacheType' is not           'administrativelyAdded'.  Since the           value of 'nhrpCacheType' was not           configured by a user, the value of           'nhrpCacheHoldingTime' is           considered valid.  In other words, the value of           'nhrpCacheHoldingTime' represents           the Holding Time for the cache Entry.           If 'nhrpCacheType has been configured by a           user, (i.e. the value of 'nhrpCacheType' is           'administrativelyAdded') then false(2) will be returned.           This indicates that the value of           'nhrpCacheHoldingTime' is undefined because this row           could possibly be backed up in nonvolatile storage."       ::= { nhrpCacheEntry 11 }   nhrpCacheHoldingTime OBJECT-TYPE       SYNTAX      Unsigned32(0..65535)       UNITS       "seconds"       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "If the value of 'nhrpCacheHoldingTimeValid is           true(1) then this object represents the number           of seconds that the cache entry will remain in this           table.  When this value reaches 0 (zero) the row should           be deleted.           If the value of 'nhrpCacheHoldingTimeValid is           false(2) then this object is undefined."       ::= { nhrpCacheEntry 12 }Greene, et al.              Standards Track                    [Page 13]

RFC 2677                        NHRP MIB                     August 1999   nhrpCacheNegotiatedMtu OBJECT-TYPE       SYNTAX      Integer32 (0..65535)       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The maximum transmission unit (MTU) that was negotiated           or registered for this entity. In other words, this is the           actual MTU being used."       ::= { nhrpCacheEntry 13 }   nhrpCachePreference OBJECT-TYPE       SYNTAX      Integer32 (0..255)       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "An object which reflects the Preference value of the           Client Information Entry (CIE).           Zero or more Client Information Entries (CIEs) may be           included in the NHRP Packet.  One of the fields in the           CIE is the Preference.  For a complete description of           the CIE, refer toSection 5.2.0.1 of  RFC 2332 [17]."       REFERENCE           "Section 5.2.0.1 Mandatory Part Format,RFC 2332 [17]."       ::= { nhrpCacheEntry 14 }   nhrpCacheStorageType OBJECT-TYPE       SYNTAX      StorageType       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "This value only has meaning when the 'nhrpCacheType'           has the value of 'administrativelyAdded'.           When the row is created due to being           'administrativelyAdded', this object reflects whether           this row is kept in volatile storage           and lost upon reboot or if this row is backed up by           non-volatile or permanent storage.           If the value of 'nhrpCacheType' has a value which           is not 'administrativelyAdded, then the value of this           object is 'other(1)'."       DEFVAL      { nonVolatile }       ::= { nhrpCacheEntry 15 }Greene, et al.              Standards Track                    [Page 14]

RFC 2677                        NHRP MIB                     August 1999   nhrpCacheRowStatus OBJECT-TYPE       SYNTAX      RowStatus       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "An object that allows entries in this table to be           created and deleted using the RowStatus convention."       ::= { nhrpCacheEntry 16 }   --   -- The NHRP Purge Request Table   --   nhrpPurgeReqTable OBJECT-TYPE       SYNTAX      SEQUENCE OF NhrpPurgeReqEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "This table will track Purge Request Information."       ::= { nhrpGeneralObjects 3 }   nhrpPurgeReqEntry OBJECT-TYPE       SYNTAX      NhrpPurgeReqEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "Information regarding a Purge Request."       INDEX       {   nhrpPurgeIndex  }       ::= { nhrpPurgeReqTable 1 }   NhrpPurgeReqEntry ::= SEQUENCE {       nhrpPurgeIndex                        Unsigned32,       nhrpPurgeCacheIdentifier              Unsigned32,       nhrpPurgePrefixLength                 Integer32,       nhrpPurgeRequestID                    Unsigned32,       nhrpPurgeReplyExpected                TruthValue,       nhrpPurgeRowStatus                    RowStatus   }   nhrpPurgeIndex  OBJECT-TYPE       SYNTAX      Unsigned32 (1..4294967295)       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "An index for this entry that has local significance           within the scope of this table."       ::= { nhrpPurgeReqEntry 1 }Greene, et al.              Standards Track                    [Page 15]

RFC 2677                        NHRP MIB                     August 1999   nhrpPurgeCacheIdentifier OBJECT-TYPE       SYNTAX      Unsigned32 (1..4294967295)       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "This object identifies which row in           'nhrpCacheTable' is being purged.  This object           should have the same value as the 'nhrpCacheIndex'           in the 'nhrpCacheTable'."       ::= { nhrpPurgeReqEntry 2 }   nhrpPurgePrefixLength OBJECT-TYPE       SYNTAX      Integer32 (0..255)       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "In the case of NHRP Purge Requests, this specifies the           equivalence class of addresses which match the first           'Prefix Length' bit positions of the Client Protocol           Address specified in the Client Information Entry (CIE)."       ::= { nhrpPurgeReqEntry 3 }   nhrpPurgeRequestID OBJECT-TYPE       SYNTAX      Unsigned32       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The Request ID used in the purge request."       ::= { nhrpPurgeReqEntry 4 }   nhrpPurgeReplyExpected OBJECT-TYPE       SYNTAX      TruthValue       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "An indication of whether this Purge Request has the           'N' Bit cleared (off)."       ::= { nhrpPurgeReqEntry 5 }   nhrpPurgeRowStatus OBJECT-TYPE       SYNTAX      RowStatus       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "An object that allows entries in this table to be           created and deleted using the RowStatus convention."       ::= { nhrpPurgeReqEntry 6 }Greene, et al.              Standards Track                    [Page 16]

RFC 2677                        NHRP MIB                     August 1999   --****************************************************************   -- NHRP Client Objects   --****************************************************************   nhrpClientObjects OBJECT IDENTIFIER ::= { nhrpObjects 2 }   --   -- The NHRP Client Table   --   nhrpClientTable OBJECT-TYPE       SYNTAX      SEQUENCE OF NhrpClientEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "Information about NHRP clients (NHCs) managed by this           agent."       ::= { nhrpClientObjects 1 }   nhrpClientEntry OBJECT-TYPE       SYNTAX      NhrpClientEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "Information about a single NHC."       INDEX       { nhrpClientIndex }       ::= { nhrpClientTable 1 }   NhrpClientEntry ::= SEQUENCE {       nhrpClientIndex                      Unsigned32,       nhrpClientInternetworkAddrType       AddressFamilyNumbers,       nhrpClientInternetworkAddr           NhrpGenAddr,       nhrpClientNbmaAddrType               AddressFamilyNumbers,       nhrpClientNbmaAddr                   NhrpGenAddr,       nhrpClientNbmaSubaddr                NhrpGenAddr,       nhrpClientInitialRequestTimeout      Integer32,       nhrpClientRegistrationRequestRetries Integer32,       nhrpClientResolutionRequestRetries   Integer32,       nhrpClientPurgeRequestRetries        Integer32,       nhrpClientDefaultMtu                 Unsigned32,       nhrpClientHoldTime                   Unsigned32,       nhrpClientRequestID                  Unsigned32,       nhrpClientStorageType                StorageType,       nhrpClientRowStatus                  RowStatus   }Greene, et al.              Standards Track                    [Page 17]

RFC 2677                        NHRP MIB                     August 1999   nhrpClientIndex OBJECT-TYPE       SYNTAX      Unsigned32 (1..4294967295)       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "An identifier for the NHRP client that is unique within           the scope of this agent.  The 'nhrpNextIndex' value           should be consulted (read), prior to creating a row in           this table, and the value returned from reading           'nhrpNextIndex' should be used as this object's value."       ::= { nhrpClientEntry 1 }   nhrpClientInternetworkAddrType OBJECT-TYPE       SYNTAX      AddressFamilyNumbers       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The type of the internetwork layer address of this           client. This object indicates how the value of           nhrpClientInternetworkAddr is to be interpreted."       ::= { nhrpClientEntry 2 }   nhrpClientInternetworkAddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The value of the internetwork layer address of this           client."       ::= { nhrpClientEntry 3 }   nhrpClientNbmaAddrType OBJECT-TYPE       SYNTAX      AddressFamilyNumbers       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The type of the NBMA subnetwork address of this client.           This object indicates how the values of           nhrpClientNbmaAddr and nhrpClientNbmaSubaddr are to be           interpreted."       ::= { nhrpClientEntry 4 }   nhrpClientNbmaAddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      currentGreene, et al.              Standards Track                    [Page 18]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "The NBMA subnetwork address of this client."       ::= { nhrpClientEntry 5 }   nhrpClientNbmaSubaddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The NBMA subaddress of this client. For NBMA address           families without a subaddress concept, this will be a           zero-length OCTET STRING."       ::= { nhrpClientEntry 6 }   nhrpClientInitialRequestTimeout OBJECT-TYPE       SYNTAX      Integer32 (1..900)       UNITS       "seconds"       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The number of seconds that the client will wait before           timing out an NHRP initial request.  This object only has           meaning for the initial timeout period."       DEFVAL      { 10 }       ::= { nhrpClientEntry 7 }   nhrpClientRegistrationRequestRetries OBJECT-TYPE       SYNTAX      Integer32 (0..65535)       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The number of times the client will retry the           registration request before failure. A value of           0 means don't retry. A value of 65535 means           retry forever."       DEFVAL      { 3 }       ::= { nhrpClientEntry 8 }   nhrpClientResolutionRequestRetries OBJECT-TYPE       SYNTAX      Integer32 (0..65535)       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The number of times the client will retry the resolution           request before failure. A value of 0 means don't retry.           A value of 65535 means retry forever."       DEFVAL      { 3 }       ::= { nhrpClientEntry 9 }Greene, et al.              Standards Track                    [Page 19]

RFC 2677                        NHRP MIB                     August 1999   nhrpClientPurgeRequestRetries OBJECT-TYPE       SYNTAX      Integer32 (0..65535)       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The number of times the client will retry a purge request           before failure. A value of 0 means don't retry. A value of           65535 means retry forever."       DEFVAL      { 3 }       ::= { nhrpClientEntry 10 }   nhrpClientDefaultMtu OBJECT-TYPE       SYNTAX      Unsigned32 (0..65535)       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The default maximum transmission unit (MTU) of the           LIS/LAG which this client should use. This object           will be initialized by the agent to the default MTU           of the LIS/LAG (which is 9180) unless a different MTU           value is specified during creation of this Client."       REFERENCE           "RFC 2225 [25], Classical IP and ARP over ATM,Section 7,           DEFAULT VALUE FOR IP MTU OVER ATM AAL5."       DEFVAL      { 9180 }       ::= { nhrpClientEntry 11 }   nhrpClientHoldTime OBJECT-TYPE       SYNTAX      Unsigned32(0..65535)       UNITS       "seconds"       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The hold time the client will register."       DEFVAL      { 900 }       ::= { nhrpClientEntry 12 }   nhrpClientRequestID OBJECT-TYPE       SYNTAX      Unsigned32       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The Request ID used to register this client with its           server. According toSection 5.2.3 of the NHRP           Specification,RFC 2332 [17], the Request ID must           be kept in non-volatile storage, so that if an NHC           crashes and  re-initializes, it will use a differentGreene, et al.              Standards Track                    [Page 20]

RFC 2677                        NHRP MIB                     August 1999           Request ID during the registration process           when reregistering with the same NHS."       REFERENCE           "Section 5.2.3 NHRP Registration Request,RFC 2332 [17]."       ::= { nhrpClientEntry 13 }   nhrpClientStorageType OBJECT-TYPE       SYNTAX      StorageType       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "This object defines whether this row is kept in           volatile storage and lost upon a Client crash or           reboot situation, or if this row is backed up by           nonvolatile or permanent storage."       DEFVAL      { nonVolatile }       ::= { nhrpClientEntry 14 }   nhrpClientRowStatus OBJECT-TYPE       SYNTAX      RowStatus       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "An object that allows entries in this table to be           created and deleted using the RowStatus convention."       ::= { nhrpClientEntry 15 }   --   -- The NHRP Client Registration Table   --   nhrpClientRegistrationTable OBJECT-TYPE       SYNTAX      SEQUENCE OF NhrpClientRegistrationEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "A table of Registration Request Information that           needs to be maintained by the NHCs (clients)."       REFERENCE           "Section 5.2.3 NHRP Registration Request,RFC 2332 [17]."       ::= { nhrpClientObjects 2 }   nhrpClientRegistrationEntry OBJECT-TYPE       SYNTAX      NhrpClientRegistrationEntry       MAX-ACCESS  not-accessible       STATUS      currentGreene, et al.              Standards Track                    [Page 21]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "An NHC needs to maintain registration request information           between the NHC and the NHS.  An entry in this table           represents information for a single registration request."       INDEX       { nhrpClientIndex,                     nhrpClientRegIndex                   }       ::= { nhrpClientRegistrationTable 1 }   NhrpClientRegistrationEntry ::= SEQUENCE {       nhrpClientRegIndex          Unsigned32,       nhrpClientRegUniqueness     INTEGER,       nhrpClientRegState          INTEGER,       nhrpClientRegRowStatus      RowStatus   }   nhrpClientRegIndex OBJECT-TYPE       SYNTAX      Unsigned32 (1..4294967295)       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "An identifier for this entry such that it           identifies a specific Registration Request from           the NHC represented by the nhrpClientIndex."       ::= { nhrpClientRegistrationEntry 1 }   nhrpClientRegUniqueness OBJECT-TYPE       SYNTAX      INTEGER {                       requestUnique(1),                       requestNotUnique(2)                   }       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The Uniqueness indicator for this Registration Request.           If this object has the value of requestUnique(1), then           the Uniqueness bit is set in the the NHRP Registration           Request represented by this row.  The value cannot           be changed once the row is created."       ::= { nhrpClientRegistrationEntry 2 }   nhrpClientRegState  OBJECT-TYPE       SYNTAX      INTEGER {                       other(1),                       registering(2),                       ackRegisterReply(3),                       nakRegisterReply(4)Greene, et al.              Standards Track                    [Page 22]

RFC 2677                        NHRP MIB                     August 1999                   }       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The registration state of this client. The values are:               'other(1)'             The state of the registration                                      request is not one of                                      'registering',                                      'ackRegisterReply' or                                      'nakRegisterReply'.               'registering(2)'        A registration request has                                       been issued and a registration                                       reply is expected.               'ackRegisterReply(3)'   A positive registration reply                                       has been received.               'nakRegisterReply(4)'   The client has received a                                       negative registration                                       reply (NAK)."       ::= { nhrpClientRegistrationEntry 3 }   nhrpClientRegRowStatus OBJECT-TYPE       SYNTAX      RowStatus       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "An object that allows entries in this table to be           created and deleted using the RowStatus convention."       ::= { nhrpClientRegistrationEntry 4 }   --   -- The NHRP Client->Server Table   --   nhrpClientNhsTable OBJECT-TYPE       SYNTAX      SEQUENCE OF NhrpClientNhsEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "A table of NHSes that are available for use by this NHC           (client). By default, the agent will add an entry to this           table that corresponds to the client's default router."       ::= { nhrpClientObjects 3 }Greene, et al.              Standards Track                    [Page 23]

RFC 2677                        NHRP MIB                     August 1999   nhrpClientNhsEntry OBJECT-TYPE       SYNTAX      NhrpClientNhsEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "An NHS that may be used by an NHC."       INDEX       { nhrpClientIndex, nhrpClientNhsIndex }       ::= { nhrpClientNhsTable 1 }   NhrpClientNhsEntry ::= SEQUENCE {       nhrpClientNhsIndex                  Unsigned32,       nhrpClientNhsInternetworkAddrType   AddressFamilyNumbers,       nhrpClientNhsInternetworkAddr       NhrpGenAddr,       nhrpClientNhsNbmaAddrType           AddressFamilyNumbers,       nhrpClientNhsNbmaAddr               NhrpGenAddr,       nhrpClientNhsNbmaSubaddr            NhrpGenAddr,       nhrpClientNhsInUse                  TruthValue,       nhrpClientNhsRowStatus              RowStatus   }   nhrpClientNhsIndex OBJECT-TYPE       SYNTAX      Unsigned32 (1..4294967295)       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "An identifier for an NHS available to an NHC."       ::= { nhrpClientNhsEntry 1 }   nhrpClientNhsInternetworkAddrType OBJECT-TYPE       SYNTAX      AddressFamilyNumbers       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The type of the internetwork layer address of the           NHRP server represented in this entry. This object           indicates how the value of           nhrpClientNhsInternetworkAddr is to be interpreted."       ::= { nhrpClientNhsEntry 2 }   nhrpClientNhsInternetworkAddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The value of the destination internetwork layer           address of the NHRP server represented by thisGreene, et al.              Standards Track                    [Page 24]

RFC 2677                        NHRP MIB                     August 1999           entry.  If this value is not known, this will be           a zero-length OCTET STRING."       ::= { nhrpClientNhsEntry 3 }   nhrpClientNhsNbmaAddrType OBJECT-TYPE       SYNTAX      AddressFamilyNumbers       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The type of the NBMA subnetwork address of the NHRP           Server represented by this entry. This object indicates           how the values of nhrpClientNhsNbmaAddr and           nhrpClientNhsNbmaSubaddr are to be interpreted."       ::= { nhrpClientNhsEntry 4 }   nhrpClientNhsNbmaAddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The NBMA subnetwork address of the NHS. The type of           the address is indicated by the corresponding value of           nhrpClientNhsNbmaAddrType."       ::= { nhrpClientNhsEntry 5 }   nhrpClientNhsNbmaSubaddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The NBMA subaddress of the NHS. For NMBA address           families that do not have the concept of subaddress,                this will be a zero-length OCTET STRING."       ::= { nhrpClientNhsEntry 6 }   nhrpClientNhsInUse OBJECT-TYPE       SYNTAX      TruthValue       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "An indication of whether this NHS is in use by the NHC."       ::= { nhrpClientNhsEntry 7 }   nhrpClientNhsRowStatus OBJECT-TYPE       SYNTAX      RowStatus       MAX-ACCESS  read-create       STATUS      currentGreene, et al.              Standards Track                    [Page 25]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "An object that allows entries in this table to be           created and deleted using the RowStatus convention."       ::= { nhrpClientNhsEntry 8 }   --   -- The NHRP Client StatisticsTable   --   nhrpClientStatTable OBJECT-TYPE       SYNTAX      SEQUENCE OF NhrpClientStatEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "This table contains statistics collected by NHRP           clients."       ::= { nhrpClientObjects 4 }   nhrpClientStatEntry OBJECT-TYPE       SYNTAX      NhrpClientStatEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "Statistics collected by a NHRP client."       INDEX       { nhrpClientIndex }       ::= { nhrpClientStatTable 1 }   NhrpClientStatEntry ::= SEQUENCE {       nhrpClientStatTxResolveReq                    Counter32,       nhrpClientStatRxResolveReplyAck               Counter32,       nhrpClientStatRxResolveReplyNakProhibited     Counter32,       nhrpClientStatRxResolveReplyNakInsufResources Counter32,       nhrpClientStatRxResolveReplyNakNoBinding      Counter32,       nhrpClientStatRxResolveReplyNakNotUnique      Counter32,       nhrpClientStatTxRegisterReq                   Counter32,       nhrpClientStatRxRegisterAck                   Counter32,       nhrpClientStatRxRegisterNakProhibited         Counter32,       nhrpClientStatRxRegisterNakInsufResources     Counter32,       nhrpClientStatRxRegisterNakAlreadyReg         Counter32,       nhrpClientStatRxPurgeReq                      Counter32,       nhrpClientStatTxPurgeReq                      Counter32,       nhrpClientStatRxPurgeReply                    Counter32,       nhrpClientStatTxPurgeReply                    Counter32,       nhrpClientStatTxErrorIndication               Counter32,       nhrpClientStatRxErrUnrecognizedExtension      Counter32,       nhrpClientStatRxErrLoopDetected               Counter32,Greene, et al.              Standards Track                    [Page 26]

RFC 2677                        NHRP MIB                     August 1999       nhrpClientStatRxErrProtoAddrUnreachable       Counter32,       nhrpClientStatRxErrProtoError                 Counter32,       nhrpClientStatRxErrSduSizeExceeded            Counter32,       nhrpClientStatRxErrInvalidExtension           Counter32,       nhrpClientStatRxErrAuthenticationFailure      Counter32,       nhrpClientStatRxErrHopCountExceeded           Counter32,       nhrpClientStatDiscontinuityTime               TimeStamp   }   nhrpClientStatTxResolveReq OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Resolution Requests transmitted           by this client.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 1 }   nhrpClientStatRxResolveReplyAck OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of positively acknowledged NHRP Resolution           Replies received by this client.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 2 }   nhrpClientStatRxResolveReplyNakProhibited OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NAKed NHRP Resolution Replies received           by this client that contained the code indicating           'Administratively Prohibited'.Greene, et al.              Standards Track                    [Page 27]

RFC 2677                        NHRP MIB                     August 1999           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 3 }   nhrpClientStatRxResolveReplyNakInsufResources OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NAKed NHRP Resolution Replies received           by this client that contained the code indicating           'Insufficient Resources'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 4 }   nhrpClientStatRxResolveReplyNakNoBinding OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NAKed NHRP Resolution Replies received           by this client that contained the code indicating           'No Internetworking Layer Address to NBMA Address           Binding Exists'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 5 }   nhrpClientStatRxResolveReplyNakNotUnique OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      currentGreene, et al.              Standards Track                    [Page 28]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "The number of NAKed NHRP Resolution Replies received           by this client that contained the code indicating           'Binding Exists But Is Not Unique'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 6 }   nhrpClientStatTxRegisterReq OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Registration Requests transmitted           by this client.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 7 }   nhrpClientStatRxRegisterAck OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of positively acknowledged NHRP Registration           Replies received by this client.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 8 }   nhrpClientStatRxRegisterNakProhibited OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      currentGreene, et al.              Standards Track                    [Page 29]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "The number of NAKed NHRP Registration Replies received           by this client that contained the code indicating           'Administratively Prohibited'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 9 }   nhrpClientStatRxRegisterNakInsufResources OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NAKed NHRP Registration Replies received           by this client that contained the code indicating           'Insufficient Resources'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 10 }   nhrpClientStatRxRegisterNakAlreadyReg OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NAKed NHRP Registration Replies received           by this client that contained the code indicating 'Unique           Internetworking Layer Address Already Registered'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 11 }   nhrpClientStatRxPurgeReq OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      currentGreene, et al.              Standards Track                    [Page 30]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "The number of NHRP Purge Requests received by this           client.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 12 }   nhrpClientStatTxPurgeReq OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Purge Requests transmitted by this           client.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 13 }   nhrpClientStatRxPurgeReply OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Purge Replies received by this           client.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 14 }   nhrpClientStatTxPurgeReply OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Purge Replies transmitted by this           client.Greene, et al.              Standards Track                    [Page 31]

RFC 2677                        NHRP MIB                     August 1999           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       ::= { nhrpClientStatEntry 15 }   nhrpClientStatTxErrorIndication OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets transmitted           by this client.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpClientStatEntry 16 }   nhrpClientStatRxErrUnrecognizedExtension OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets received           by this client with the error code           'Unrecognized Extension'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpClientStatEntry 17 }   nhrpClientStatRxErrLoopDetected OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      currentGreene, et al.              Standards Track                    [Page 32]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "The number of NHRP Error Indication packets received           by this client with the error code 'NHRP Loop Detected'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpClientStatEntry 18 }   nhrpClientStatRxErrProtoAddrUnreachable OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets received           by this client with the error code 'Protocol Address           Unreachable'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpClientStatEntry 19 }   nhrpClientStatRxErrProtoError OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets received           by this client with the error code 'Protocol Error'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpClientStatEntry 20 }Greene, et al.              Standards Track                    [Page 33]

RFC 2677                        NHRP MIB                     August 1999   nhrpClientStatRxErrSduSizeExceeded OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets received           by this client with the error code 'NHRP SDU Size           Exceeded'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpClientStatEntry 21 }   nhrpClientStatRxErrInvalidExtension OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets received           by this client with the error code 'Invalid Extension'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpClientStatEntry 22 }   nhrpClientStatRxErrAuthenticationFailure OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets received           by this client with the error code 'Authentication           Failure'.Greene, et al.              Standards Track                    [Page 34]

RFC 2677                        NHRP MIB                     August 1999           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpClientStatEntry 23 }   nhrpClientStatRxErrHopCountExceeded OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets received           by this client with the error code 'Hop Count Exceeded'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Client re-initialization and at           other times as indicated by the value of           nhrpClientStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpClientStatEntry 24 }   nhrpClientStatDiscontinuityTime OBJECT-TYPE       SYNTAX      TimeStamp       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The value of sysUpTime on the most recent occasion at           which any one or more of this Client's counters           suffered a discontinuity.  If no such discontinuities           have occurred since the last re-initialization of the           local management subsystem or the NHRP Client           re-initialization associated with this entry, then           this object contains a zero value."       REFERENCE           "RFC 2233 [18]."       ::= { nhrpClientStatEntry 25 }Greene, et al.              Standards Track                    [Page 35]

RFC 2677                        NHRP MIB                     August 1999   --****************************************************************   -- NHRP Server Objects   --****************************************************************   nhrpServerObjects OBJECT IDENTIFIER ::= { nhrpObjects 3 }   --   -- The NHRP Next Hop Server Table   --   nhrpServerTable OBJECT-TYPE       SYNTAX      SEQUENCE OF NhrpServerEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "This table contains information for a set of NHSes           associated with this agent."       ::= { nhrpServerObjects 1 }   nhrpServerEntry OBJECT-TYPE       SYNTAX      NhrpServerEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "Information about a single NHS."       INDEX       { nhrpServerIndex }       ::= { nhrpServerTable 1 }   NhrpServerEntry ::= SEQUENCE {       nhrpServerIndex                 Unsigned32,       nhrpServerInternetworkAddrType  AddressFamilyNumbers,       nhrpServerInternetworkAddr      NhrpGenAddr,       nhrpServerNbmaAddrType          AddressFamilyNumbers,       nhrpServerNbmaAddr              NhrpGenAddr,       nhrpServerNbmaSubaddr           NhrpGenAddr,       nhrpServerStorageType           StorageType,       nhrpServerRowStatus             RowStatus   }   nhrpServerIndex OBJECT-TYPE       SYNTAX      Unsigned32 (1..4294967295)       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "An identifier for the server that is unique within the           scope of this agent."       ::= { nhrpServerEntry 1 }Greene, et al.              Standards Track                    [Page 36]

RFC 2677                        NHRP MIB                     August 1999   nhrpServerInternetworkAddrType OBJECT-TYPE       SYNTAX      AddressFamilyNumbers       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The type of the internetwork layer address of this           server. This object is used to interpret the value of           nhrpServerInternetworkAddr."       ::= { nhrpServerEntry 2 }   nhrpServerInternetworkAddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The value of the internetwork layer address of this           server."       ::= { nhrpServerEntry 3 }   nhrpServerNbmaAddrType OBJECT-TYPE       SYNTAX      AddressFamilyNumbers       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The type of the NBMA subnetwork address of this server.           This object is used to interpret the value of           nhrpServerNbmaAddr."       ::= { nhrpServerEntry 4 }   nhrpServerNbmaAddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The value of the NBMA subnetwork address of this           server."       ::= { nhrpServerEntry 5 }   nhrpServerNbmaSubaddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The value of the NBMA subaddress of this server.           For NBMA address families without a subaddress           concept, this will be a zero-length OCTET STRING."       ::= { nhrpServerEntry 6 }Greene, et al.              Standards Track                    [Page 37]

RFC 2677                        NHRP MIB                     August 1999   nhrpServerStorageType OBJECT-TYPE       SYNTAX      StorageType       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "This object defines whether this row is kept in           volatile storage and lost upon a Server crash or           reboot situation, or if this row is backed up by           nonvolatile or permanent storage."       DEFVAL      { nonVolatile }       ::= { nhrpServerEntry 7 }   nhrpServerRowStatus OBJECT-TYPE       SYNTAX      RowStatus       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "An object that allows entries in this table to be           created and deleted using the RowStatus convention."       ::= { nhrpServerEntry 8 }   --   -- The Server Cache Table   --   nhrpServerCacheTable OBJECT-TYPE       SYNTAX      SEQUENCE OF NhrpServerCacheEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "This table extends the nhrpCacheTable for           NHSes.  If the nhrpCacheTable has a row added due to           an NHS or based on information regarding an NHS then           a row is also added in this table.           The rows in this table will be created when rows in           the nhrpCacheTable are created.  However, there may           be rows created in the nhrpCacheTable which do not           have corresponding rows in this table.  For example,           if the nhrpCacheTable has a row added due to a Next           Hop Client which is co-resident on the same device           as the NHS, a row will not be added to this table."       ::= { nhrpServerObjects 2 }   nhrpServerCacheEntry OBJECT-TYPE       SYNTAX      NhrpServerCacheEntry       MAX-ACCESS  not-accessible       STATUS      currentGreene, et al.              Standards Track                    [Page 38]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "Additional information kept by a NHS for a relevant           Next Hop Resolution Cache entry."       INDEX       {                       nhrpCacheInternetworkAddrType,                       nhrpCacheInternetworkAddr,                       ifIndex,                       nhrpCacheIndex                   }       ::= { nhrpServerCacheTable 1 }   NhrpServerCacheEntry ::= SEQUENCE {       nhrpServerCacheAuthoritative   TruthValue,       nhrpServerCacheUniqueness      TruthValue   }   nhrpServerCacheAuthoritative OBJECT-TYPE       SYNTAX      TruthValue       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "An indication of whether this cache entry is           authoritative, which means the entry was added because           of a direct registration request with this server or           by Server Cache Synchronization Protocol (SCSP) from           an authoritative source."       ::= { nhrpServerCacheEntry 1 }   nhrpServerCacheUniqueness OBJECT-TYPE       SYNTAX      TruthValue       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The Uniqueness indicator for this cache           entry used in duplicate address detection. This value           cannot be changed after the entry is active."       ::= { nhrpServerCacheEntry 2 }   --   -- The NHRP Server->Client Table   --   nhrpServerNhcTable OBJECT-TYPE       SYNTAX      SEQUENCE OF NhrpServerNhcEntry       MAX-ACCESS  not-accessible       STATUS      currentGreene, et al.              Standards Track                    [Page 39]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "A table of NHCs that are available for use by this NHS           (Server)."       REFERENCE           "Section 4 Configuration (Next Hop Servers),RFC 2332 [17]."       ::= { nhrpServerObjects 3 }   nhrpServerNhcEntry OBJECT-TYPE       SYNTAX      NhrpServerNhcEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "An NHC that may be used by an NHS."       INDEX       { nhrpServerIndex, nhrpServerNhcIndex }       ::= { nhrpServerNhcTable 1 }   NhrpServerNhcEntry ::= SEQUENCE {       nhrpServerNhcIndex                  Unsigned32,       nhrpServerNhcPrefixLength           Integer32,       nhrpServerNhcInternetworkAddrType   AddressFamilyNumbers,       nhrpServerNhcInternetworkAddr       NhrpGenAddr,       nhrpServerNhcNbmaAddrType           AddressFamilyNumbers,       nhrpServerNhcNbmaAddr               NhrpGenAddr,       nhrpServerNhcNbmaSubaddr            NhrpGenAddr,       nhrpServerNhcInUse                  TruthValue,       nhrpServerNhcRowStatus              RowStatus   }   nhrpServerNhcIndex OBJECT-TYPE       SYNTAX      Unsigned32 (1..4294967295)       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "An identifier for an NHC available to an NHS."       ::= { nhrpServerNhcEntry 1 }   nhrpServerNhcPrefixLength OBJECT-TYPE       SYNTAX      Integer32 (0..255)       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The number of bits that define the internetwork           layer prefix associated with the           nhrpServerNhcInternetworkAddr."       ::= { nhrpServerNhcEntry 2 }Greene, et al.              Standards Track                    [Page 40]

RFC 2677                        NHRP MIB                     August 1999   nhrpServerNhcInternetworkAddrType OBJECT-TYPE       SYNTAX      AddressFamilyNumbers       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The type of the internetwork layer address of the           NHRP Client represented in this entry. This object           indicates how the value of nhrpServerNhcInternetworkAddr           is to be interpreted."       ::= { nhrpServerNhcEntry 3 }   nhrpServerNhcInternetworkAddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The value of the internetwork layer address of           the NHRP Client represented by this entry.  If this           value is not known, this will be a zero-length           OCTET STRING."       ::= { nhrpServerNhcEntry 4 }   nhrpServerNhcNbmaAddrType OBJECT-TYPE       SYNTAX      AddressFamilyNumbers       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The type of the NBMA subnetwork address of the NHRP           Client represented by this entry. This object indicates           how the values of nhrpServerNhcNbmaAddr and           nhrpServerNhcNbmaSubaddr are to be interpreted."       ::= { nhrpServerNhcEntry 5 }   nhrpServerNhcNbmaAddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "The NBMA subnetwork address of the NHC. The type of the           address is indicated by the corresponding value of           nhrpServerNbmaAddrType."       ::= { nhrpServerNhcEntry 6 }   nhrpServerNhcNbmaSubaddr OBJECT-TYPE       SYNTAX      NhrpGenAddr       MAX-ACCESS  read-create       STATUS      currentGreene, et al.              Standards Track                    [Page 41]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "The NBMA subaddress of the NHC. For NMBA address familes           that do not have the concept of subaddress, this will           be a zero-length OCTET STRING."       ::= { nhrpServerNhcEntry 7 }   nhrpServerNhcInUse OBJECT-TYPE       SYNTAX      TruthValue       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "An indication of whether this NHC is in use by the NHS."       ::= { nhrpServerNhcEntry 8 }   nhrpServerNhcRowStatus OBJECT-TYPE       SYNTAX      RowStatus       MAX-ACCESS  read-create       STATUS      current       DESCRIPTION           "An object that allows entries in this table to be           created and deleted using the RowStatus convention."       ::= { nhrpServerNhcEntry 9 }   --   -- The Next Hop Server Statistics Table   --   nhrpServerStatTable OBJECT-TYPE       SYNTAX      SEQUENCE OF NhrpServerStatEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "Statistics collected by Next Hop Servers."       ::= { nhrpServerObjects 4 }   nhrpServerStatEntry OBJECT-TYPE       SYNTAX      NhrpServerStatEntry       MAX-ACCESS  not-accessible       STATUS      current       DESCRIPTION           "Statistics for a particular NHS. The statistics are           broken into received (Rx), transmitted (Tx)           and forwarded (Fw).  Forwarded (Fw) would be done           by a transit NHS."       INDEX       { nhrpServerIndex }       ::= { nhrpServerStatTable 1 }Greene, et al.              Standards Track                    [Page 42]

RFC 2677                        NHRP MIB                     August 1999   NhrpServerStatEntry ::= SEQUENCE {       nhrpServerStatRxResolveReq                    Counter32,       nhrpServerStatTxResolveReplyAck               Counter32,       nhrpServerStatTxResolveReplyNakProhibited     Counter32,       nhrpServerStatTxResolveReplyNakInsufResources Counter32,       nhrpServerStatTxResolveReplyNakNoBinding      Counter32,       nhrpServerStatTxResolveReplyNakNotUnique      Counter32,       nhrpServerStatRxRegisterReq                   Counter32,       nhrpServerStatTxRegisterAck                   Counter32,       nhrpServerStatTxRegisterNakProhibited         Counter32,       nhrpServerStatTxRegisterNakInsufResources     Counter32,       nhrpServerStatTxRegisterNakAlreadyReg         Counter32,       nhrpServerStatRxPurgeReq                      Counter32,       nhrpServerStatTxPurgeReq                      Counter32,       nhrpServerStatRxPurgeReply                    Counter32,       nhrpServerStatTxPurgeReply                    Counter32,   -- Error Indications       nhrpServerStatRxErrUnrecognizedExtension      Counter32,       nhrpServerStatRxErrLoopDetected               Counter32,       nhrpServerStatRxErrProtoAddrUnreachable       Counter32,       nhrpServerStatRxErrProtoError                 Counter32,       nhrpServerStatRxErrSduSizeExceeded            Counter32,       nhrpServerStatRxErrInvalidExtension           Counter32,       nhrpServerStatRxErrInvalidResReplyReceived    Counter32,       nhrpServerStatRxErrAuthenticationFailure      Counter32,       nhrpServerStatRxErrHopCountExceeded           Counter32,       nhrpServerStatTxErrUnrecognizedExtension      Counter32,       nhrpServerStatTxErrLoopDetected               Counter32,       nhrpServerStatTxErrProtoAddrUnreachable       Counter32,       nhrpServerStatTxErrProtoError                 Counter32,       nhrpServerStatTxErrSduSizeExceeded            Counter32,       nhrpServerStatTxErrInvalidExtension           Counter32,       nhrpServerStatTxErrAuthenticationFailure      Counter32,       nhrpServerStatTxErrHopCountExceeded           Counter32,   -- Transit NHS statistics       nhrpServerStatFwResolveReq                    Counter32,       nhrpServerStatFwResolveReply                  Counter32,       nhrpServerStatFwRegisterReq                   Counter32,       nhrpServerStatFwRegisterReply                 Counter32,       nhrpServerStatFwPurgeReq                      Counter32,       nhrpServerStatFwPurgeReply                    Counter32,       nhrpServerStatFwErrorIndication               Counter32,       nhrpServerStatDiscontinuityTime               TimeStampGreene, et al.              Standards Track                    [Page 43]

RFC 2677                        NHRP MIB                     August 1999   }   nhrpServerStatRxResolveReq OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Resolution Requests received by this           server.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 1 }   nhrpServerStatTxResolveReplyAck OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of positively acknowledged NHRP           Resolution Replies transmitted by this server.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 2 }   nhrpServerStatTxResolveReplyNakProhibited OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NAKed NHRP Resolution Replies           transmitted by this server with the code           'Administratively Prohibited'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 3 }Greene, et al.              Standards Track                    [Page 44]

RFC 2677                        NHRP MIB                     August 1999   nhrpServerStatTxResolveReplyNakInsufResources OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NAKed NHRP Resolution Replies           transmitted by this server with the code           'Insufficient Resources'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 4 }   nhrpServerStatTxResolveReplyNakNoBinding OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NAKed NHRP Resolution Replies           transmitted by this server with the code           'No Internetworking Layer Address to NBMA           Address Binding Exists'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 5 }   nhrpServerStatTxResolveReplyNakNotUnique OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NAKed NHRP Resolution Replies           transmitted by this server with the code           'Binding Exists But Is Not Unique'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 6 }Greene, et al.              Standards Track                    [Page 45]

RFC 2677                        NHRP MIB                     August 1999   nhrpServerStatRxRegisterReq OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Registration Requests received           by this server.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 7 }   nhrpServerStatTxRegisterAck OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of positively acknowledged NHRP Registration           Replies transmitted by this server.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 8 }   nhrpServerStatTxRegisterNakProhibited OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NAKed NHRP Registration Replies           transmitted by this server with the code           'Administratively Prohibited'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 9 }Greene, et al.              Standards Track                    [Page 46]

RFC 2677                        NHRP MIB                     August 1999   nhrpServerStatTxRegisterNakInsufResources OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NAKed NHRP Registration Replies           transmitted by this server with the code           'Insufficient Resources'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 10 }   nhrpServerStatTxRegisterNakAlreadyReg OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NAKed NHRP Registration Replies           transmitted by this server with the code           'Unique Internetworking Layer Address Already           Registered'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 11 }   nhrpServerStatRxPurgeReq OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Purge Requests received by           this server.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 12 }Greene, et al.              Standards Track                    [Page 47]

RFC 2677                        NHRP MIB                     August 1999   nhrpServerStatTxPurgeReq OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Purge Requests transmitted by this           server.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 13 }   nhrpServerStatRxPurgeReply OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Purge Replies received by this           server.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 14 }   nhrpServerStatTxPurgeReply OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Purge Replies transmitted by           this server.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 15 }   nhrpServerStatRxErrUnrecognizedExtension OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-onlyGreene, et al.              Standards Track                    [Page 48]

RFC 2677                        NHRP MIB                     August 1999       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets received           by this server with the error code           'Unrecognized Extension'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 16 }   nhrpServerStatRxErrLoopDetected OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets received           by this server with the error code 'NHRP Loop Detected'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 17 }   nhrpServerStatRxErrProtoAddrUnreachable OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets received           by this server with the error code 'Protocol Address           Unreachable'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."Greene, et al.              Standards Track                    [Page 49]

RFC 2677                        NHRP MIB                     August 1999       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 18 }   nhrpServerStatRxErrProtoError OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets received           by this server with the error code 'Protocol Error'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 19 }   nhrpServerStatRxErrSduSizeExceeded OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets received           by this server with the error code 'NHRP SDU Size           Exceeded'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 20 }   nhrpServerStatRxErrInvalidExtension OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      currentGreene, et al.              Standards Track                    [Page 50]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "The number of NHRP Error Indication packets received           by this server with the error code 'Invalid Extension'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 21 }   nhrpServerStatRxErrInvalidResReplyReceived OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets received           by this server with the error code 'Invalid Resolution           Reply Received'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 22 }   nhrpServerStatRxErrAuthenticationFailure OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets           received by this server with the error code           'Authentication Failure'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 23 }Greene, et al.              Standards Track                    [Page 51]

RFC 2677                        NHRP MIB                     August 1999   nhrpServerStatRxErrHopCountExceeded OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets           received by this server with the error code           'Hop Count Exceeded'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 24 }   nhrpServerStatTxErrUnrecognizedExtension OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets           transmitted by this server with the error code           'Unrecognized Extension'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 25 }   nhrpServerStatTxErrLoopDetected OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets           transmitted by this server with the error code           'NHRP Loop Detected'.Greene, et al.              Standards Track                    [Page 52]

RFC 2677                        NHRP MIB                     August 1999           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 26 }   nhrpServerStatTxErrProtoAddrUnreachable OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets           transmitted by this server with the error code           'Protocol Address Unreachable'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 27 }   nhrpServerStatTxErrProtoError OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets           transmitted by this server with the error           code 'Protocol Error'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 28 }Greene, et al.              Standards Track                    [Page 53]

RFC 2677                        NHRP MIB                     August 1999   nhrpServerStatTxErrSduSizeExceeded OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets           transmitted by this server with the error code           'NHRP SDU Size Exceeded'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 29 }   nhrpServerStatTxErrInvalidExtension OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets           transmitted by this server with the error code           'Invalid Extension'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 30 }   nhrpServerStatTxErrAuthenticationFailure OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets           transmitted by this server with the error code           'Authentication Failure'.Greene, et al.              Standards Track                    [Page 54]

RFC 2677                        NHRP MIB                     August 1999           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 31 }   nhrpServerStatTxErrHopCountExceeded OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets           transmitted by this server with the error           code 'Hop Count Exceeded'.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       REFERENCE           "Section 5.2.7 NHRP Error Indication,RFC 2332 [17]."       ::= { nhrpServerStatEntry 32 }   nhrpServerStatFwResolveReq OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Resolution Requests           forwarded by this server acting as a transit NHS.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 33 }   nhrpServerStatFwResolveReply OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      currentGreene, et al.              Standards Track                    [Page 55]

RFC 2677                        NHRP MIB                     August 1999       DESCRIPTION           "The number of NHRP Resolution Replies forwarded           by this server acting as a transit NHS.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 34 }   nhrpServerStatFwRegisterReq OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Registration Requests forwarded           by this server acting as a transit NHS.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 35 }   nhrpServerStatFwRegisterReply OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Registration Replies forwarded           by this server acting as a transit NHS.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 36 }   nhrpServerStatFwPurgeReq OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Purge Requests forwarded           by this server acting as a transit NHS.Greene, et al.              Standards Track                    [Page 56]

RFC 2677                        NHRP MIB                     August 1999           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 37 }   nhrpServerStatFwPurgeReply OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Purge Replies forwarded by this           server acting as a transit NHS.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 38 }   nhrpServerStatFwErrorIndication OBJECT-TYPE       SYNTAX      Counter32       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The number of NHRP Error Indication packets forwarded           by this server acting as a transit NHS.           Discontinuities in the value of this counter can occur           at re-initialization of the management system, at           NHRP Server re-initialization and at           other times as indicated by the value of           nhrpServerStatDiscontinuityTime."       ::= { nhrpServerStatEntry 39 }   nhrpServerStatDiscontinuityTime OBJECT-TYPE       SYNTAX      TimeStamp       MAX-ACCESS  read-only       STATUS      current       DESCRIPTION           "The value of sysUpTime on the most recent occasion at           which any one or more of this Server's counters           suffered a discontinuity.  If no such discontinuities           have occurred since the last re-initialization of theGreene, et al.              Standards Track                    [Page 57]

RFC 2677                        NHRP MIB                     August 1999           local management subsystem or the NHRP Server           re-initialization associated with this entry, then           this object contains a zero value."       REFERENCE           "RFC 2233 [18]."       ::= { nhrpServerStatEntry 40 }   --****************************************************************   -- Module Compliance Statement   --****************************************************************   nhrpConformance OBJECT IDENTIFIER ::= { nhrpMIB 2 }   nhrpCompliances       OBJECT IDENTIFIER ::= { nhrpConformance 1 }   nhrpGroups       OBJECT IDENTIFIER ::= { nhrpConformance 2 }   nhrpModuleCompliance MODULE-COMPLIANCE       STATUS current       DESCRIPTION           "The compliance statement for the NHRP MIB."       MODULE -- this module           MANDATORY-GROUPS    { nhrpGeneralGroup }           GROUP nhrpClientGroup           DESCRIPTION               "This group must be supported only by stations that               are NHRP clients."           GROUP nhrpServerGroup           DESCRIPTION               "This group must be supported only by stations that               are NHRP servers."       ::= { nhrpCompliances 1 }   nhrpGeneralGroup OBJECT-GROUP       OBJECTS {           nhrpNextIndex,           nhrpCachePrefixLength,           nhrpCacheNextHopInternetworkAddr,           nhrpCacheNbmaAddrType,           nhrpCacheNbmaAddr,           nhrpCacheNbmaSubaddr,           nhrpCacheType,           nhrpCacheState,Greene, et al.              Standards Track                    [Page 58]

RFC 2677                        NHRP MIB                     August 1999           nhrpCacheHoldingTimeValid,           nhrpCacheHoldingTime,           nhrpCacheNegotiatedMtu,           nhrpCachePreference,           nhrpCacheStorageType,           nhrpCacheRowStatus,           nhrpPurgeCacheIdentifier,           nhrpPurgePrefixLength,           nhrpPurgeRequestID,           nhrpPurgeReplyExpected,           nhrpPurgeRowStatus       }       STATUS    current       DESCRIPTION           "Objects that apply to both NHRP clients and NHRP           servers."       ::= { nhrpGroups 1 }   nhrpClientGroup OBJECT-GROUP       OBJECTS {           nhrpClientInternetworkAddrType,           nhrpClientInternetworkAddr,           nhrpClientNbmaAddrType,           nhrpClientNbmaAddr,           nhrpClientNbmaSubaddr,           nhrpClientInitialRequestTimeout,           nhrpClientRegistrationRequestRetries,           nhrpClientResolutionRequestRetries,           nhrpClientPurgeRequestRetries,           nhrpClientDefaultMtu,           nhrpClientHoldTime,           nhrpClientRequestID,           nhrpClientStorageType,           nhrpClientRowStatus,           nhrpClientRegUniqueness,           nhrpClientRegState,           nhrpClientRegRowStatus,           nhrpClientNhsInternetworkAddrType,           nhrpClientNhsInternetworkAddr,           nhrpClientNhsNbmaAddrType,           nhrpClientNhsNbmaAddr,           nhrpClientNhsNbmaSubaddr,           nhrpClientNhsInUse,           nhrpClientNhsRowStatus,           nhrpClientStatTxResolveReq,           nhrpClientStatRxResolveReplyAck,           nhrpClientStatRxResolveReplyNakProhibited,Greene, et al.              Standards Track                    [Page 59]

RFC 2677                        NHRP MIB                     August 1999           nhrpClientStatRxResolveReplyNakInsufResources,           nhrpClientStatRxResolveReplyNakNoBinding,           nhrpClientStatRxResolveReplyNakNotUnique,           nhrpClientStatTxRegisterReq,           nhrpClientStatRxRegisterAck,           nhrpClientStatRxRegisterNakProhibited,           nhrpClientStatRxRegisterNakInsufResources,           nhrpClientStatRxRegisterNakAlreadyReg,           nhrpClientStatRxPurgeReq,           nhrpClientStatTxPurgeReq,           nhrpClientStatRxPurgeReply,           nhrpClientStatTxPurgeReply,           nhrpClientStatTxErrorIndication,           nhrpClientStatRxErrUnrecognizedExtension,           nhrpClientStatRxErrLoopDetected,           nhrpClientStatRxErrProtoAddrUnreachable,           nhrpClientStatRxErrProtoError,           nhrpClientStatRxErrSduSizeExceeded,           nhrpClientStatRxErrInvalidExtension,           nhrpClientStatRxErrAuthenticationFailure,           nhrpClientStatRxErrHopCountExceeded,           nhrpClientStatDiscontinuityTime       }       STATUS    current       DESCRIPTION           "Objects that apply only to NHRP clients."       ::= { nhrpGroups 2 }   nhrpServerGroup OBJECT-GROUP       OBJECTS {           nhrpServerInternetworkAddrType,           nhrpServerInternetworkAddr,           nhrpServerNbmaAddrType,           nhrpServerNbmaAddr,           nhrpServerNbmaSubaddr,           nhrpServerStorageType,           nhrpServerRowStatus,           nhrpServerCacheAuthoritative,           nhrpServerCacheUniqueness,           nhrpServerNhcPrefixLength,           nhrpServerNhcInternetworkAddrType,           nhrpServerNhcInternetworkAddr,           nhrpServerNhcNbmaAddrType,           nhrpServerNhcNbmaAddr,           nhrpServerNhcNbmaSubaddr,           nhrpServerNhcInUse,           nhrpServerNhcRowStatus,           nhrpServerStatRxResolveReq,Greene, et al.              Standards Track                    [Page 60]

RFC 2677                        NHRP MIB                     August 1999           nhrpServerStatTxResolveReplyAck,           nhrpServerStatTxResolveReplyNakProhibited,           nhrpServerStatTxResolveReplyNakInsufResources,           nhrpServerStatTxResolveReplyNakNoBinding,           nhrpServerStatTxResolveReplyNakNotUnique,           nhrpServerStatRxRegisterReq,           nhrpServerStatTxRegisterAck,           nhrpServerStatTxRegisterNakProhibited,           nhrpServerStatTxRegisterNakInsufResources,           nhrpServerStatTxRegisterNakAlreadyReg,           nhrpServerStatRxPurgeReq,           nhrpServerStatTxPurgeReq,           nhrpServerStatRxPurgeReply,           nhrpServerStatTxPurgeReply,           nhrpServerStatRxErrUnrecognizedExtension,           nhrpServerStatRxErrLoopDetected,           nhrpServerStatRxErrProtoAddrUnreachable,           nhrpServerStatRxErrProtoError,           nhrpServerStatRxErrSduSizeExceeded,           nhrpServerStatRxErrInvalidExtension,           nhrpServerStatRxErrInvalidResReplyReceived,           nhrpServerStatRxErrAuthenticationFailure,           nhrpServerStatRxErrHopCountExceeded,           nhrpServerStatTxErrUnrecognizedExtension,           nhrpServerStatTxErrLoopDetected,           nhrpServerStatTxErrProtoAddrUnreachable,           nhrpServerStatTxErrProtoError,           nhrpServerStatTxErrSduSizeExceeded,           nhrpServerStatTxErrInvalidExtension,           nhrpServerStatTxErrAuthenticationFailure,           nhrpServerStatTxErrHopCountExceeded,           nhrpServerStatFwResolveReq,           nhrpServerStatFwResolveReply,           nhrpServerStatFwRegisterReq,           nhrpServerStatFwRegisterReply,           nhrpServerStatFwPurgeReq,           nhrpServerStatFwPurgeReply,           nhrpServerStatFwErrorIndication,           nhrpServerStatDiscontinuityTime       }       STATUS    current       DESCRIPTION           "Objects that apply only to NHRP servers."       ::= { nhrpGroups 3 }   ENDGreene, et al.              Standards Track                    [Page 61]

RFC 2677                        NHRP MIB                     August 19995.  IANA Considerations   The Internet Assigned Numbers Authority (IANA) has been and continues   to be responsible for maintaining the ADDRESS FAMILY NUMBERS   (http://www.isi.edu/in-notes/iana/assignments/address-family-numbers)   name space assignments.  The IANA has placed this list in a MIB   module, such that it may be imported into other MIBs.  The motivation   for doing this is to allow MIBs to not have to change when a new   assignment is made to the ADDRESS FAMILY NUMBERS.  This is very   similar to the motivation behind the IANAifType-MIB.   Any additions or changes to the list of ADDRESS FAMILY NUMBERS   registered via IANA will be done as they have in the past and this   document does not propose any changes to the ADDRESS FAMILY NUMBERS   other than to place them into a MIB, which can be found via anonymous   FTP at:ftp://ftp.isi.edu/mib/ianaaddressfamilynumbers.mib.6.  Security   There are a number of management objects defined in this MIB that   have a MAX-ACCESS clause of read-write and/or read-create.  Such   objects may be considered sensitive or vulnerable in some network   environments.  The support for SET operations in a non-secure   environment without proper protection can have a negative effect on   network operations.   The NHRP Protocol,RFC 2332 [17], Section 5.2.4.4 discusses security.   There is an authentication option which should be utilized to   authenticate the source and also provide data integrity to the NHRP   payload.  This MIB does not contain any managed objects which   configure or expose security information such as that needed for NHRP   authentication or data integrity.   The following items were deemed to jeopardize security and thus, were   NOT added to this MIB. Items denoted as (configurable) are those   which would need values.  Items denoted as (read-only) are those   which would provide information. Although the NHRP Protocol [17],   requires or has this information, exposing it in a MIB would   jeopardize the entire NBMA domain where NHRP was being used.   Therefore, these items have been omitted from the MIB.Greene, et al.              Standards Track                    [Page 62]

RFC 2677                        NHRP MIB                     August 1999     1. (configurable) enable/disable security     2. (configurable) SPI (security parameter index).        Depending upon the implementation,        there may be multiple SPIs, and these would        be configurable also.  For example, if the        implementation switched to a different SPI        after a given time.     3. (configurable) algorithm.        The HMAC-MD5-128 is the default hash algorithm.     4. (configurable) lifetime value in seconds.     5. (read-only) key.     6. (read-only) list of users who have access        to the above information.7.  Intellectual Property   The IETF takes no position regarding the validity or scope of any   intellectual property or other rights that might be claimed to   pertain to the implementation or use of the technology described in   this document or the extent to which any license under such rights   might or might not be available; neither does it represent that it   has made any effort to identify any such rights.  Information on the   IETF's procedures with respect to rights in standards-track and   standards-related documentation can be found inBCP-11.  Copies of   claims of rights made available for publication and any assurances of   licenses to be made available, or the result of an attempt made to   obtain a general license or permission for the use of such   proprietary rights by implementors or users of this specification can   be obtained from the IETF Secretariat.   The IETF invites any interested party to bring to its attention any   copyrights, patents or patent applications, or other proprietary   rights which may cover technology that may be required to practice   this standard.  Please address the information to the IETF Executive   Director.8.  Acknowledgments   This document is a product of the IETF's Internetworking Over NBMA   Networks (ion) Working Group.   The authors would like to thank Avri Doria (Bytex) for the first   draft of the NHRP MIB and Keith McCloghrie (cisco) and David Horton   (CITR) for their feedback and suggestions.  Also, we would like to   thank Naganand Doraswamy (Bay Networks) for assistance with the   "Security Considerations" section.Greene, et al.              Standards Track                    [Page 63]

RFC 2677                        NHRP MIB                     August 19999.  References    [1] Harrington, D., Presuhn, R. and B. Wijnen, "An Architecture for        Describing SNMP Management Frameworks",RFC 2571, April 1999.    [2] Rose, M. and K. McCloghrie, "Structure and Identification of        Management Information for TCP/IP-based Internets", STD 16,RFC1155, May 1990.    [3] Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16,RFC 1212, March 1991.    [4] Rose, M., "A Convention for Defining Traps for use with the        SNMP",RFC 1215, March 1991.    [5] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,        M.  and S. Waldbusser, "Structure of Management Information        Version 2 (SMIv2)", STD 58,RFC 2578, April 1999.    [6] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,        M.  and S. Waldbusser, "Textual Conventions for SMIv2", STD 58,RFC 2579, April 1999.    [7] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,        M.  and S. Waldbusser, "Conformance Statements for SMIv2", STD        58,RFC 2580, April 1999.    [8] Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple        Network Management Protocol", STD 15,RFC 1157, May 1990.    [9] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,        "Introduction to Community-based SNMPv2",RFC 1901, January        1996.   [10] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Transport        Mappings for Version 2 of the Simple Network Management Protocol        (SNMPv2)",RFC 1906, January 1996.   [11] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message        Processing and Dispatching for the Simple Network Management        Protocol (SNMP)",RFC 2572, April 1999.   [12] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM)        for version 3 of the Simple Network Management Protocol        (SNMPv3)",RFC 2574, April 1999.Greene, et al.              Standards Track                    [Page 64]

RFC 2677                        NHRP MIB                     August 1999   [13] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol        Operations for Version 2 of the Simple Network Management        Protocol (SNMPv2)",RFC 1905, January 1996.   [14] Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications",RFC2573, April 1999.   [15] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access        Control Model (VACM) for the Simple Network Management Protocol        (SNMP)",RFC 2575, April 1999.   [16] Case, J., Mundy, R., Partain, D. and B. Stewart, "Introduction        to Version 3 of the Internet-standard Network Management        Framework",RFC 2570, April 1999.   [17] Luciani, J. V., Katz, D., Piscitello, D. and B. Cole, "NBMA Next        Hop Resolution Protocol (NHRP)",RFC 2332, December 1997.   [18] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB        using SMIv2",RFC 2233, November 1997.   [19] Tesink, K., Editor, "Definitions of Managed Objects for ATM        Management",RFC 2515, February 1999.   [20] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA        Considerations Section in RFCs",BCP 26,RFC 2434, October 1998.   [21] Bradner, S., "Key words for use in RFCs to Indicate Requirement        Levels",BCP 14,RFC 2119, March 1997.   [22] Bradner, S., "The Internet Standards Process -- Revision 3",BCP9,RFC 2026, October 1996.   [23] Cucchiara, J., editor, "Multiprotocol Over ATM Version 1.0 MIB",        af-mpoa-0092.000, ATM Forum, July 1998.   [24] Fredette, A., editor,  "Multiprotocol Over ATM Version 1.0",        af-mpoa-0087.000, ATM Forum, May 1997.   [25] Laubach, M., and J. Halpern, "Classical IP and ARP over ATM",RFC 2225, April 1998.   [26] Greene, M., J. Luciani, K. White and T. Kuo, "Definitions of        Managed Objects for Classical IP and ARP Over ATM Using SMIv2",RFC 2320, April 1998.Greene, et al.              Standards Track                    [Page 65]

RFC 2677                        NHRP MIB                     August 199910.  Authors' Addresses   James V. Luciani   Bay Networks   3 Federal Street   Mail Stop: BL3-03   Billerica, MA 01821   Phone: (978) 288-4734   EMail: luciani@baynetworks.com   Maria Greene   Contractor   Xedia, Corp.   119 Russell Dr.   Littleton, MA 01460   EMail: maria@xedia.com   Joan Cucchiara   IronBridge Networks   55 Hayden Ave.   Lexington, MA  02421   Phone: (781) 372-8236   EMail: joan@ironbridgenetworks.comGreene, et al.              Standards Track                    [Page 66]

RFC 2677                        NHRP MIB                     August 199912.  Full Copyright Statement   Copyright (C) The Internet Society (1999).  All Rights Reserved.   This document and translations of it may be copied and furnished to   others, and derivative works that comment on or otherwise explain it   or assist in its implementation may be prepared, copied, published   and distributed, in whole or in part, without restriction of any   kind, provided that the above copyright notice and this paragraph are   included on all such copies and derivative works.  However, this   document itself may not be modified in any way, such as by removing   the copyright notice or references to the Internet Society or other   Internet organizations, except as needed for the purpose of   developing Internet standards in which case the procedures for   copyrights defined in the Internet Standards process must be   followed, or as required to translate it into languages other than   English.   The limited permissions granted above are perpetual and will not be   revoked by the Internet Society or its successors or assigns.   This document and the information contained herein is provided on an   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.Acknowledgement   Funding for the RFC Editor function is currently provided by the   Internet Society.Greene, et al.              Standards Track                    [Page 67]

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