D. Zinman
   Internet Draft                                             D. Walker Zinman
   Document: draft-ietf-iptel-trip-mib-02.txt              SS8 Networks draft-ietf-iptel-trip-mib-03.txt
   Expires: July November 2002                                     D. Walker
                                                         Jianping Jiang
                                                           SS8 Networks

                        Management Information Base
                   for Telephony Routing over IP (TRIP)
                    <draft-ietf-iptel-trip-mib-02.txt>
                    <draft-ietf-iptel-trip-mib-03.txt>

Status of this Memo

   This document is an Internet-Draft and is in full conformance with
   all provisions of Section 10 of RFC2026 [1]. RFC 2026 [RFC2026].

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups. Note that
   other groups may also distribute working documents as Internet-
   Drafts.

   Internet-Drafts are draft documents valid for a maximum of six
   months and may be updated, replaced, or obsoleted by other documents
   at any time. It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

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

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

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 a set of managed objects that are used
   to manage for Telephony Routing over IP (TRIP) [RFC3219] devices.

   Since TRIP [RFC3219] is modeled after the Border Gateway Protocol
   (BGP-4) [RFC1771], the managed objects for TRIP are also modeled
   after RFC1657 - Definitions of Managed Objects for the Fourth
   Version of the Border Gateway Protocol (BGP-4) using SMIv2
   [RFC2578].
   [RFC1657].

Zinman/Walker/Jiang                                                   1

Table of Contents

   Status of this Memo................................................1
   Abstract...........................................................1
   1.   Introduction..................................................2   Introduction..................................................3
   2.   Conventions used in this document.............................2

Zinman/Walker/Jiang                                                   1 document.............................3
   3.   The SNMP Management Framework.................................2 Framework.................................3
   4.   Overview......................................................3   Overview......................................................4
   5.   Structure of TRIP MIB.........................................3 MIB.........................................4
   5.1  Textual Conventions...........................................4
   6.   TRIP MIB......................................................4 MIB......................................................5
   7.   Security Considerations......................................38 Considerations......................................39
   8.   Revision History.............................................39
   8.1. Changes from <draft-zinman-trip-mib-00.txt>..................39
   8.2. Changes from <draft-zinman-trip-mib-01.txt>..................39 <draft-zinman-trip-mib-01.txt>..................40
   8.3. Changes from <draft-ietf-iptel-trip-mib-00.txt>..............40
   8.4. Changes from <draft-ietf-iptel-trip-mib-01.txt>..............40 <draft-ietf-iptel-trip-mib-01.txt>..............41
   8.5. Changes from <draft-ietf-iptel-trip-mib-02.txt>..............41
   9.   Full Copyright Statement.....................................40 Statement.....................................41
   10.  References...................................................41  References...................................................42
   11.  Author's Addresses...........................................42 Addresses...........................................43
   12.  Working Group................................................43 Group................................................44

Zinman/Walker/Jiang                                                   2

1.   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 a set of managed objects that
   are used to schedule management operations periodically or at
   specified dates and times.

2.   Conventions used in this document

   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 in BCP-0014
   [BCP0014].

3.   The SNMP Management Framework

   The SNMP Management Framework presently consists of five major
   components:

    o   An overall architecture, described in RFC 2571 [RFC2571].

    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 [RFC1155], STD 16, RFC 1212 [RFC1212] and RFC
        1215 [RFC1215].  The second version, called SMIv2, is described
        in STD 58, RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and
        STD 58, RFC 2580 [RFC2580].

    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 [RFC1157].  A second version of
        the SNMP message protocol, which is not an Internet standards

Zinman/Walker/Jiang                                                   2
        track protocol, is called SNMPv2c and described in RFC 1901
        [RFC1901] and RFC 1906 [RFC1906].  The third version of the
        message protocol is called SNMPv3 and described in RFC 1906
        [RFC1906], RFC 2572 [RFC2572] and RFC 2574 [RFC2574].

    o   Protocol operations for accessing management information.  The
        first set of protocol operations and associated PDU formats is
        described in STD 15, RFC 1157 [RFC1157].  A second set of
        protocol operations and associated PDU formats is described in
        RFC 1905 [RFC1905].

    o   A set of fundamental applications described in RFC 2573
        [RFC2573] and the view-based access control mechanism described
        in RFC 2575 [RFC2575].

   A more detailed introduction to the current SNMP Management
   Framework can be found in RFC 2570 [RFC2570].

Zinman/Walker/Jiang                                                   3
   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.

4.   Overview

   Telephony Routing over IP (TRIP) [RFC3219] is an inter-domain
   application-
   layer
   application-layer control protocol that exchanges information
   between TRIP location servers to provide efficient IP telephony
   routing. This MIB provides managed objects for TRIP devices defined
   in Telephony Routing over IP [RFC3219].

5.   Structure of TRIP MIB

   This MIB utilizes the framework described in RFC 2788 [RFC2788] for
   management of multiple instances of TRIP from a single entity. The
   Network Services Monitoring MIB applTable will be populated with
   entries corresponding to each TRIP LS in the system. Each TRIP LS
   will then have an applIndex associated with it. The value assigned
   to applIndex will represent the distinct instance of TRIP.

   The TRIP MIB contains the following groups of objects:
   o The tripConfigGroup contains the common configuration objects

Zinman/Walker/Jiang                                                   3
     applicable to all TRIP applications referenced by the applIndex.
   o The tripPeerTableConfigGroup contains the configuration objects
     applicable to all TRIP peers of the LS referened by the applIndex.
   o The tripRouteGroup contains the configuration objects related to
     the routes of all TRIBs of this LS.
   o The tripItadTopologyGroup contains information about the topology
     of the TRIP ITADs concerning this LS.
   o The tripPeerTableStatsGroup contains the statistical objects
     applicable to all TRIP peers of the LS referened by the applIndex.
   o The tripNotificationGroup contains notifications that the TRIP
     application can generate.
   o The tripNotifObjectGroup contains the objects needed by one or
     more of the notifications.

5.1  Textual Conventions

   The data types TripItad and TripId are used as textual conventions
   in this document. A TRIP ITAD is described in [RFC3219]. A TRIP ID
   is used as a distinct identifier for a TRIP LS. A TripAppProtocol is

Zinman/Walker/Jiang                                                   4
   used to identify an application protocol. A TripAddressFamily is
   used to define an address family. Both TripAppProtocol and
   TripAddressFamily are OBJECT IDENTIFIERS and as such, a MIB
   implementor can define a private object of this type of textual
   convention. Objects defined using these conventions are always
   encoded by means of the rules that define their primitive type.
   Hence, no changes to the SMI or the SNMP are necessary to
   accommodate these textual conventions which are adopted merely for
   the convenience of readers.

6.   TRIP MIB

TRIP-MIB DEFINITIONS ::= BEGIN

   IMPORTS
       MODULE-IDENTITY,
       OBJECT-TYPE,
       NOTIFICATION-TYPE,
       OBJECT-IDENTITY,
       Unsigned32,
       Integer32,
       Counter32,
       mib-2
           FROM SNMPv2-SMI

       TEXTUAL-CONVENTION,
       DateAndTime,
       TimeInterval,
       TruthValue,
       TimeStamp,
       StorageType,
       RowStatus

Zinman/Walker/Jiang                                                   4
           FROM SNMPv2-TC

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

       InetAddressType,
       InetAddress
       InetAddress,
       InetPortNumber
           FROM INET-ADDRESS-MIB

       applIndex
           FROM NETWORK-SERVICES-MIB;

   tripMIB MODULE-IDENTITY
      LAST-UPDATED "200202280000Z" "200205170000Z" -- Feb 28, May 17, 2002
      ORGANIZATION "IETF IPTel Working Group"
      CONTACT-INFO
      "Co-editor  David Zinman

Zinman/Walker/Jiang                                                   5
       email:     dzinman@sympatico.ca
       phone:     +1 613 791 2841

       Co-editor  Dave Walker
                  SS8 Networks, Inc.
       postal:    495 March Road, Suite #500
                  Ottawa, ON, K2K 3G1 Canada
       email:     drwalker@ss8.com
       phone:     +1 613 592 2100

       Co-editor  Jianping Jiang
                  SS8 Networks, Inc.
       postal:    495 March Road, Suite #500
                  Ottawa, ON, K2K 3G1 Canada
       email:     jianping@ss8.com
       phone:     +1 613 592 2100
       "
   DESCRIPTION
       "The MIB module describing Telephony Routing over IP (TRIP).
       TRIP is a policy driven inter-administrative domain protocol
       for advertising the reachability of telephony destinations
       between location servers (LS), and for advertising attributes
       of the routes to those destinations."
   REVISION      "200202280000Z"      "200205170000Z"
   DESCRIPTION
       "The initial version, Published as RFC xxxx."
   ::= { mib-2 xxx } -- to be assigned by IANA

   --
   -- Textual Conventions
   --
   TripItad ::= TEXTUAL-CONVENTION
       STATUS current

Zinman/Walker/Jiang                                                   5
       DESCRIPTION
          "The values for identifying the IP Telephony
          Administrative Domain (ITAD)."
       SYNTAX Unsigned32 (0..4294967295)

   TripId ::= TEXTUAL-CONVENTION
       STATUS current
       DESCRIPTION
          "The TRIP Identifier uniquely identifies a LS within its
          ITAD. It is a 4 octet unsigned integer that may, but not
          necessarily, represent the IPv4 address of a Location
          Server (LS). For an IPv6 network, it will not represent the
          IPv6 address."
       SYNTAX Unsigned32 (0..4294967295)

   TripAppProtocol ::= TEXTUAL-CONVENTION
       STATUS current
       DESCRIPTION
           "The application protocol used for communication with TRIP

Zinman/Walker/Jiang                                                   6
           Location Servers (LS). Protocols defined in this document
           are:
               tripSupProtSIP
               tripSupProtH323Q931
               tripSupProtH323RAS
               tripSupProtH323ANNEXG

           Users can add their own application protocol types by
           defining a TripAppProtocol type in a private
           specification."
       SYNTAX OBJECT IDENTIFIER

   TripAddressFamily ::= TEXTUAL-CONVENTION
       STATUS current
       DESCRIPTION
           "A type of address for a TRIP route. Address families
           defined within this MIB module are:
               tripAddrFamilyDecimal
               tripAddrFamilyPentadecimal
               tripAddrFamilyE164

          Users can add their own address family types by defining a
          TripAddressFamily type in a private specification."
       SYNTAX OBJECT IDENTIFIER

   TripCommunityId ::= TEXTUAL-CONVENTION
       STATUS current
       DESCRIPTION
          "The range of legal values for a TRIP Community Identifier."
       SYNTAX Unsigned32 (0..4294967295)

   TripProtocolVersion ::= TEXTUAL-CONVENTION
       STATUS current

Zinman/Walker/Jiang                                                   6
       DESCRIPTION
          "The version number of the TRIP protocol."
       SYNTAX Integer32 (1..255)

   TripSendReceiveMode ::= TEXTUAL-CONVENTION
       STATUS current
       DESCRIPTION
          "The operational mode of the TRIP application."
       SYNTAX INTEGER { sendReceive(1), sendOnly(2), receiveOnly(3) }

       tripMIBNotifications OBJECT IDENTIFIER ::= { tripMIB 0 }
       tripMIBObjects       OBJECT IDENTIFIER ::= { tripMIB 1 }
       tripMIBConformance   OBJECT IDENTIFIER ::= { tripMIB 2 }
       tripMIBNotifObjects  OBJECT IDENTIFIER ::= { tripMIB 3 }
       tripMIBAdmin         OBJECT IDENTIFIER ::= { tripMIB 4 }

       tripMIBCompliance    OBJECT IDENTIFIER ::=
                                       { tripMIBConformance 1 }
       tripMIBGroups        OBJECT IDENTIFIER ::=

Zinman/Walker/Jiang                                                   7
                                       { tripMIBConformance 2 }

   --
   -- Supported protocols
   --
       tripSupportedProtocols OBJECT-IDENTITY
          STATUS        current
          DESCRIPTION
              "Registration point for the protocols supported by
              TRIP."
          ::= { tripMIBAdmin 1 }

       tripSupProtSIP
           OBJECT IDENTIFIER ::= { tripSupportedProtocols 1 }
       tripSupProtH323Q931
           OBJECT IDENTIFIER ::= { tripSupportedProtocols 2 }
       tripSupProtH323RAS
           OBJECT IDENTIFIER ::= { tripSupportedProtocols 3 }
       tripSupProtH323ANNEXG
           OBJECT IDENTIFIER ::= { tripSupportedProtocols 4 }

   --
   -- Address Families
   --
       tripAddressFamilies OBJECT-IDENTITY
          STATUS        current
          DESCRIPTION
              "Registration point for the address families supported
              by TRIP."
          ::= { tripMIBAdmin 2 }

       tripAddrFamilyDecimal
           OBJECT IDENTIFIER ::= { tripAddressFamilies 1 }

Zinman/Walker/Jiang                                                   7
       tripAddrFamilyPentadecimal
           OBJECT IDENTIFIER ::= { tripAddressFamilies 2 }
       tripAddrFamilyE164
           OBJECT IDENTIFIER ::= { tripAddressFamilies 3 }

   --
   -- tripCfgTable
   --
      tripCfgTable OBJECT-TYPE
          SYNTAX     SEQUENCE OF TripCfgEntry
          MAX-ACCESS not-accessible
          STATUS     current
          DESCRIPTION
              "This table contains the common configuration objects
               applicable to all TRIP applications referenced by the
               applIndex.  Each row represents those objects for a
               particular TRIP LS present in this system. The
               instances of TRIP LS's are uniquely identified by the
               applIndex."

Zinman/Walker/Jiang                                                   8
          ::= { tripMIBObjects 1 }

      tripCfgEntry OBJECT-TYPE
          SYNTAX     TripCfgEntry
          MAX-ACCESS not-accessible
          STATUS     current
          DESCRIPTION
              "A row of common configuration."
          INDEX { applIndex }
          ::= { tripCfgTable 1 }

      TripCfgEntry ::=
          SEQUENCE {
             tripCfgProtocolVersion               TripProtocolVersion,
             tripCfgItad                          TripItad,
             tripCfgIdentifier                    TripId,
             tripCfgOperStatus                    INTEGER,
             tripCfgAdminStatus                   INTEGER,
             tripCfgAddrIAddrType                 InetAddressType,
             tripCfgAddr                          InetAddress,
             tripCfgPort                          Integer32,                          InetPortNumber,
             tripCfgMinItadOriginationInterval    Integer32,
             tripCfgMinRouteAdvertisementInterval Integer32,
             tripCfgMaxPurgeTime                  Integer32,
             tripCfgDisableTime                   Integer32,
             tripCfgSendReceiveMode               INTEGER
         }

      tripCfgProtocolVersion    OBJECT-TYPE
          SYNTAX     TripProtocolVersion
          MAX-ACCESS read-only
          STATUS     current
          DESCRIPTION

Zinman/Walker/Jiang                                                   8
              "This object will reflect the version of TRIP
              supported by this system.  It follows the same
              format as TRIP version information contained
              in the TRIP messages generated by this TRIP entity
              as dictated by the TRIP specification[RFC3219]."
          ::= { tripCfgEntry 1 }

      tripCfgItad   OBJECT-TYPE
          SYNTAX      TripItad
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
              "The Local Internet Telephony Administrative domain."
          ::= { tripCfgEntry 2 }

      tripCfgIdentifier   OBJECT-TYPE
          SYNTAX      TripId
          MAX-ACCESS  read-only
          STATUS      current

Zinman/Walker/Jiang                                                   9
          DESCRIPTION
              "The object that identifies this TRIP Client."
          ::= { tripCfgEntry 3 }

      tripCfgAdminStatus OBJECT-TYPE
          SYNTAX      INTEGER {
                          up(1),
                          down(2)
                      }
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
              "The desired TRIP state.

               up(1)  : Set the application to normal operation.

               down(2): Set the application to a state where it will
                        not process TRIP messages."
          ::= { tripCfgEntry 4 }

      tripCfgOperStatus OBJECT-TYPE
          SYNTAX      INTEGER {
                          up(1),
                          down(2)
                      }
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The current operational state of the TRIP protocol.

               up(1)  : The application is operating normally, and
                        is processing (receiving and possibly
                        issuing) TRIP requests and responses.

Zinman/Walker/Jiang                                                   9

               down(2): The application is currently unable to
                        process TRIP messages due to a fault or if
                        TRIP is in an initialization state.

              If tripAdminStatus is down(2) then tripOperStatus should
              be down(2). If tripAdminStatus is changed to up(1) then
              tripOperStatus should change to up(1) if there is no
              fault that prevents the TRIP protocol from moving to the
              up(1) state."
          ::= { tripCfgEntry 5 }

      tripCfgAddrIAddrType OBJECT-TYPE
          SYNTAX      InetAddressType
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The type of Inet Address of the tripAddr."
          REFERENCE

Zinman/Walker/Jiang                                                  10
              "RFC 2851, section 3."
          ::= { tripCfgEntry 6 }

      tripCfgAddr OBJECT-TYPE
          SYNTAX      InetAddress
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The IP address of the local LS that the peer connects
              to."
          REFERENCE
              "RFC 2851, section 3."
          ::= { tripCfgEntry 7 }

      tripCfgPort OBJECT-TYPE
          SYNTAX      Integer32 (1..65535)      InetPortNumber
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
              "The local tcp/udp port on the local LS that the peer
              connects to."
          ::= { tripCfgEntry 8 }

      tripCfgMinItadOriginationInterval OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)
          UNITS       "Seconds"
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
              "The minimum amount of time that must elapse between
              advertisement of update message that report changes
              within the LS's own ITAD."
          DEFVAL { 30 }

Zinman/Walker/Jiang                                                  10
          ::= { tripCfgEntry 9 }

      tripCfgMinRouteAdvertisementInterval OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)
          UNITS       "Seconds"
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
              "Specifies minimal interval between successive
              advertisements to a particular destination from an LS."
          DEFVAL { 30 }
          ::= { tripCfgEntry 10 }

      tripCfgMaxPurgeTime OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)
          UNITS       "Seconds"
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION

Zinman/Walker/Jiang                                                  11
              "Indicate the interval that the LS must maintain routes
              marked as withdrawn in its database."
          DEFVAL { 10 }
          ::= { tripCfgEntry 11 }

      tripCfgDisableTime OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)
          UNITS       "Seconds"
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
              "Indicate the interval that the TRIP module of the
              LS must be disabled while routes originated by this
              location server with high sequence numbers can be
              removed."
          DEFVAL { 180 }
          ::= { tripCfgEntry 12 }

      tripCfgSendReceiveMode OBJECT-TYPE
          SYNTAX INTEGER {
                  sendReceive(1),
                  sendOnly(2),
                  receiveOnly(3)
                  }
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The operational mode of the trip entity running on this
              system."
          ::= { tripCfgEntry 13 }

   --
   -- TripRouteTypeTable

Zinman/Walker/Jiang                                                  11
   --

       tripRouteTypeTable OBJECT-TYPE
         SYNTAX      SEQUENCE OF TripRouteTypeEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "The TRIP Route Type table contains one entry per
             supported protocol - address family pair. This table
             lists the route types supported in this peering session
             by the transmitting LS"
         ::= { tripMIBObjects 2 }

       tripRouteTypeEntry OBJECT-TYPE
         SYNTAX      TripRouteTypeEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "Entry containing information about the route type that

Zinman/Walker/Jiang                                                  12
             the TRIP entity supports."
         INDEX { applIndex,
                 tripRouteTypeProtocolId,
                 tripRouteTypeAddrFamilyId }
           ::= { tripRouteTypeTable 1 }

       TripRouteTypeEntry ::= SEQUENCE {
           tripRouteTypeProtocolId         TripAppProtocol,
           tripRouteTypeAddrFamilyId       TripAddressFamily
       }

       tripRouteTypeProtocolId OBJECT-TYPE
         SYNTAX      TripAppProtocol
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "The object identifier of a protocol that this peer is
             using."
         ::= { tripRouteTypeEntry 1 }

       tripRouteTypeAddrFamilyId OBJECT-TYPE
         SYNTAX      TripAddressFamily
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
             "The object identifier of an address family that this
             peer belongs to."
         ::= { tripRouteTypeEntry 2 }

   --
   -- tripSupportedCommunityTable
   --

Zinman/Walker/Jiang                                                  12

      tripSupportedCommunityTable   OBJECT-TYPE
          SYNTAX      SEQUENCE OF TripSupportedCommunityEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The list of TRIP communities that this LS supports. A
              TRIP community is a group of destinations that share
              common properties.

              The TRIP Communities attribute is used to group
              destinations so that the routing decision can be based
              on the identity of the group."
          REFERENCE
              "RFC 3219, section 5.9"
          ::= { tripMIBObjects 3 }

      tripSupportedCommunityEntry OBJECT-TYPE
          SYNTAX      TripSupportedCommunityEntry
          MAX-ACCESS  not-accessible

Zinman/Walker/Jiang                                                  13
          STATUS      current
          DESCRIPTION
              "Entry containing information about a community. A TRIP
              community is a group of destinations that share some
              common property. This attribute is used so that routing
              decisions can be based on the identity of the group"
          INDEX { applIndex, tripSupportedCommunityId }
          ::= { tripSupportedCommunityTable 1 }

      TripSupportedCommunityEntry ::= SEQUENCE {
          tripSupportedCommunityId         TripCommunityId,
          tripSupportedCommunityItad       TripItad,
          tripSupportedCommunityStorage    StorageType,
          tripSupportedCommunityRowStatus  RowStatus
      }

      tripSupportedCommunityId OBJECT-TYPE
          SYNTAX      TripCommunityId
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The identifier of the supported Community."
          ::= { tripSupportedCommunityEntry 1 }

      tripSupportedCommunityItad OBJECT-TYPE
          SYNTAX      TripItad
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION
              "The Itad of the community."
          ::= { tripSupportedCommunityEntry 2 }

     tripSupportedCommunityStorage OBJECT-TYPE

Zinman/Walker/Jiang                                                  13
         SYNTAX       StorageType
         MAX-ACCESS   read-create
         STATUS       current
         DESCRIPTION
            "The storage type for this conceptual row.  Conceptual
            rows having the value 'permanent' need not allow write-
            access to any columnar objects in the row."
         DEFVAL { nonVolatile }
         ::= { tripSupportedCommunityEntry 3 }

      tripSupportedCommunityRowStatus OBJECT-TYPE
          SYNTAX      RowStatus
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION
              "The row status of the entry. This object is required
              to create or delete rows by a manager. A value for
              tripSupportedCommunityItad must be set for row creation
              to be successful. If the instance already exists for a

Zinman/Walker/Jiang                                                  14
              particular applIndex, the row create operation will
              fail."
          ::= { tripSupportedCommunityEntry 4 }

   --
   -- TripPeerTable
   --
      tripPeerTable   OBJECT-TYPE
          SYNTAX      SEQUENCE OF TripPeerEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The TRIP peer table. This table contains one entry per
              TRIP peer, and information about the connection with
              the peer."
          ::= { tripMIBObjects 4 }

      tripPeerEntry OBJECT-TYPE
          SYNTAX      TripPeerEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "Entry containing information about the connection with
              a TRIP peer."
          INDEX { applIndex,
                  tripPeerRemoteAddrInetType,
                  tripPeerRemoteAddr,
                  tripPeerRemotePort }
            ::= {tripPeerTable 1}

      TripPeerEntry ::= SEQUENCE {
          tripPeerRemoteAddrInetType            InetAddressType,
          tripPeerRemoteAddr                    InetAddress,

Zinman/Walker/Jiang                                                  14
          tripPeerRemotePort                    Integer32,                    InetPortNumber,
          tripPeerIdentifier                    TripId,
          tripPeerState                         INTEGER,
          tripPeerAdminStatus                   INTEGER,
          tripPeerNegotiatedVersion             TripProtocolVersion,
          tripPeerSendReceiveMode               INTEGER,
          tripPeerRemoteItad                    TripItad,
          tripPeerConnectRetryInterval          Integer32,
          tripPeerMaxRetryInterval              Integer32,
          tripPeerHoldTime                      Integer32,
          tripPeerKeepAlive                     Integer32,
          tripPeerHoldTimeConfigured            Integer32,
          tripPeerKeepAliveConfigured           Integer32,
          tripPeerMaxPurgeTime                  Integer32,
          tripPeerDisableTime                   Integer32,
          tripPeerLearned                       TruthValue,
          tripPeerStorage                       StorageType,
          tripPeerRowStatus                     RowStatus
      }

Zinman/Walker/Jiang                                                  15
      tripPeerRemoteAddrInetType OBJECT-TYPE
          SYNTAX      InetAddressType
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The type of Inet Address of the tripPeerRemoteAddr."
          REFERENCE
              "RFC 2851, section 3."
          ::= { tripPeerEntry 1 }

      tripPeerRemoteAddr OBJECT-TYPE
          SYNTAX      InetAddress (SIZE(0..125))
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The remote IP address of this entry's TRIP peer. The
              size value of 125 has been assigned due to the sub
              identifier of object types length limitation as
              defined in SMIv2."
          REFERENCE
              "RFC 2851, section 3."
          ::= { tripPeerEntry 2 }

      tripPeerRemotePort OBJECT-TYPE
          SYNTAX      Integer32 (1..65535)      InetPortNumber
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The remote port for the TCP connection between the
              TRIP peers."
          ::= { tripPeerEntry 3 }

Zinman/Walker/Jiang                                                  15

      tripPeerIdentifier OBJECT-TYPE
          SYNTAX      TripId
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "TRIP identifier of the peer."
          ::= { tripPeerEntry 4 }

      tripPeerState OBJECT-TYPE
          SYNTAX      INTEGER {
                          idle(1),
                          connect(2),
                          active(3),
                          openSent(4),
                          openConfirm(5),
                          established(6)
                      }
          MAX-ACCESS  read-only
          STATUS      current

Zinman/Walker/Jiang                                                  16
          DESCRIPTION
              "TRIP Peer Finite State Machine state.

              idle(1)       : The initial state. Local LS refuses all
                              incoming connections. No resources are
                              allocated to the peer.

              connect(2)    : Local LS waiting for a transport
                              protocol connection to be completed to
                              the peer, and is listening for inbound
                              transport connections from the peer.

              active(3)     : LS is listening for an inbound
                              connection from the peer, but is not in
                              the process of initiating a connection
                              to the peer.

              openSent(4)   : LS has sent an OPEN message to its peer
                              and is waiting for an OPEN message from
                              its peer.

              openConfirm(5): LS has sent an OPEN to its peer,
                              received an OPEN from its peer, and sent
                              a KEEPALIVE in response to the OPEN. The
                              LS is now waiting for a KEEPALIVE or
                              NOTIFICATION message in
                              response to its OPEN.

              established(6): LS can exchange UPDATE, NOTIFICATION,and
                              KEEPALIVE messages with its peer."
          ::= { tripPeerEntry 5 }

      tripPeerAdminStatus OBJECT-TYPE

Zinman/Walker/Jiang                                                  16
          SYNTAX      INTEGER {
                          up(1),
                          down(2)
                      }
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION
              "This object is used to affect the TRIP connection
              state.

              up(1)   : Allow a connection with the peer LS.

              down(2) : disconnect the connection from the peer LS and
                        do not allow any further connections to this
                        peer."
          ::= { tripPeerEntry 6 }

      tripPeerNegotiatedVersion OBJECT-TYPE

Zinman/Walker/Jiang                                                  17
          SYNTAX      TripProtocolVersion
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The negotiated version of TRIP running between this
              local entity and this peer."
          ::= { tripPeerEntry 7 }

      tripPeerSendReceiveMode OBJECT-TYPE
          SYNTAX      INTEGER {
                  sendReceive(1),
                  sendOnly(2),
                  receiveOnly(3)
                  }
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The operational mode of this peer."
          ::= { tripPeerEntry 8 }

      tripPeerRemoteItad OBJECT-TYPE
          SYNTAX      TripItad
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The Internet Telephony Administrative domain of
              this peer."
          ::= { tripPeerEntry 9 }

      tripPeerConnectRetryInterval OBJECT-TYPE
          SYNTAX      Integer32 (0..2147483647)
          UNITS       "Seconds"
          MAX-ACCESS  read-create

Zinman/Walker/Jiang                                                  17
          STATUS      current
          DESCRIPTION
              "Specifies the initial amount of time that will elapse
              between connection retry. This value should double
              after each attempt up to the value of
              tripPeerMaxRetryInterval. This value must always be less
              than or equal to the value of tripPeerMaxRetryInterval.
              Attempts to set this value higher than the max retry
              should not be allowed."
          DEFVAL      { 120 }
          ::= { tripPeerEntry 10 }

      tripPeerMaxRetryInterval OBJECT-TYPE
          SYNTAX      Integer32 (0..2147483647)
          UNITS       "Seconds"
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION

Zinman/Walker/Jiang                                                  18
              "Specifies the maximum amount of time that will elapse
              between connection retries. Once the value of
              tripPeerConnectRetryInterval has reached this value, no
              more retries will be attempted. Attempts to set this
              value lower than the retry interval should not be
              allowed."
          DEFVAL      { 360 }
          ::= { tripPeerEntry 11 }

      tripPeerHoldTime OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)
          UNITS       "Seconds"
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The time interval in seconds for the hold timer that
              is established with the peer. The value of this object
              is the smaller of the values in
              tripPeerHoldTimeConfigured and the hold time received
              in the open message."
          ::= { tripPeerEntry 12 }

      tripPeerKeepAlive OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)
          UNITS       "Seconds"
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Specifies the amount of time that must elapse between
              keep alive messages. This value is negotiated with the
              remote when a connection is established."
          ::= { tripPeerEntry 13 }

Zinman/Walker/Jiang                                                  18

      tripPeerHoldTimeConfigured OBJECT-TYPE
          SYNTAX      Integer32 (0 | 3..65535)
          UNITS       "Seconds"
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION
              "Specifies the maximum time that may elapse between the
              receipt of successive keepalive or update message."
          DEFVAL { 240 }
          ::= { tripPeerEntry 14 }

      tripPeerKeepAliveConfigured OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)
          UNITS       "Seconds"
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION
              "Specifies the amount of time that must elapse between
              keep alive messages."

Zinman/Walker/Jiang                                                  19
          DEFVAL { 30 }
          ::= { tripPeerEntry 15 }

      tripPeerMaxPurgeTime OBJECT-TYPE
          SYNTAX      Integer32 (1..65535)
          UNITS       "Seconds"
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION
              "Indicate the interval that the LS must maintain routes
              marked as withdrawn in its database."
          DEFVAL { 10 }
          ::= { tripPeerEntry 16 }

      tripPeerDisableTime OBJECT-TYPE
          SYNTAX      Integer32 (1..65535)
          UNITS       "Seconds"
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION
              "Indicate the interval that the TRIP module of the peer
              LS must be disabled while routes originated by the local
              LS with high sequence numbers can be removed."
          DEFVAL { 180 }
          ::= { tripPeerEntry 17 }

       tripPeerLearned OBJECT-TYPE
           SYNTAX      TruthValue
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
               "Indicates whether this entry was learned or
               configured."

Zinman/Walker/Jiang                                                  19
           DEFVAL { false }
           ::= { tripPeerEntry 18 }

     tripPeerStorage OBJECT-TYPE
         SYNTAX       StorageType
         MAX-ACCESS   read-create
         STATUS       current
         DESCRIPTION
            "The storage type for this conceptual row.  Conceptual
            rows having the value 'permanent' need not allow write-
            access to any columnar objects in the row."
         DEFVAL { nonVolatile }
         ::= { tripPeerEntry 19 }

      tripPeerRowStatus OBJECT-TYPE
          SYNTAX      RowStatus
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION

Zinman/Walker/Jiang                                                  20
              "The row status of the entry. This object is required to
              create or delete rows remotely by a manager. If that
              method already exists for a particular applIndex, the
              row create operation will fail."
          ::= { tripPeerEntry 20 }

   --
   --     tripPeerRouteTypeTable
   --
       tripPeerRouteTypeTable OBJECT-TYPE
         SYNTAX      SEQUENCE OF TripPeerRouteTypeEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "The TRIP peer Route Type table contains one entry per
             supported protocol - address family pair. Each instance
             of tripPeerRouteTypeEntry has an instance in the
             tripPeerTable as a parent."
         ::= { tripMIBObjects 5 }

       tripPeerRouteTypeEntry OBJECT-TYPE
         SYNTAX      TripPeerRouteTypeEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "Entry containing information about the route type that
             the TRIP peer supports."
         INDEX { applIndex,
                 tripPeerRemoteAddrInetType,
                 tripPeerRemoteAddr,
                 tripPeerRemotePort,
                 tripPeerRtTypeProtocolId,
                 tripPeerRtTypeAddrFamilyId }

Zinman/Walker/Jiang                                                  20
           ::= { tripPeerRouteTypeTable 1 }

       TripPeerRouteTypeEntry ::= SEQUENCE {
           tripPeerRtTypeProtocolId         TripAppProtocol,
           tripPeerRtTypeAddrFamilyId       TripAddressFamily
       }

       tripPeerRtTypeProtocolId OBJECT-TYPE
         SYNTAX      TripAppProtocol
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "The object identifier of a protocol that this peer is
             using."
         ::= { tripPeerRouteTypeEntry 1 }

       tripPeerRtTypeAddrFamilyId OBJECT-TYPE
         SYNTAX      TripAddressFamily
         MAX-ACCESS  read-only

Zinman/Walker/Jiang                                                  21
         STATUS      current
         DESCRIPTION
             "The object identifier of an address family that this
             peer belongs to."
         ::= { tripPeerRouteTypeEntry 2 }

   --
   -- TripPeerStatsTable
   --
      tripPeerStatsTable   OBJECT-TYPE
          SYNTAX      SEQUENCE OF TripPeerStatsEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The TRIP peer stats table. This table contains one
              entry per TRIP peer, and statistics related to the
              connection with the peer."
          ::= { tripMIBObjects 6 }

      tripPeerStatsEntry OBJECT-TYPE
          SYNTAX      TripPeerStatsEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "Entry containing information about the connection with
              a TRIP peer."
          AUGMENTS { tripPeerEntry }
            ::= { tripPeerStatsTable 1 }

      TripPeerStatsEntry ::= SEQUENCE {
          tripPeerInUpdates                   Counter32,
          tripPeerOutUpdates                  Counter32,
          tripPeerInTotalMessages             Counter32,

Zinman/Walker/Jiang                                                  21
          tripPeerOutTotalMessages            Counter32,
          tripPeerFsmEstablishedTransitions   Counter32,
          tripPeerFsmEstablishedTime          DateAndTime,
          tripPeerInUpdateElapsedTime         TimeInterval,
          tripPeerStateChangeTime             TimeStamp
      }

       tripPeerInUpdates OBJECT-TYPE
          SYNTAX      Counter32
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The number of TRIP update messages received from this
              peer since the last restart of this LS."
          ::= { tripPeerStatsEntry 1 }

      tripPeerOutUpdates OBJECT-TYPE
          SYNTAX      Counter32
          MAX-ACCESS  read-only

Zinman/Walker/Jiang                                                  22
          STATUS      current
          DESCRIPTION
              "The number of TRIP update messages sent to this peer
              since the last restart of this location server."
          ::= { tripPeerStatsEntry 2 }

      tripPeerInTotalMessages OBJECT-TYPE
          SYNTAX      Counter32
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The total number of TRIP messages received from the
              remote peer on this connection since the last restart
              of this LS."
          ::= { tripPeerStatsEntry 3 }

      tripPeerOutTotalMessages OBJECT-TYPE
          SYNTAX      Counter32
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The total number of outgoing TRIP messages sent to the
              remote peer since the last restart of this LS."
          ::= { tripPeerStatsEntry 4 }

      tripPeerFsmEstablishedTransitions OBJECT-TYPE
          SYNTAX      Counter32
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The number of times the TRIP peer has transitioned into
              the established state since the last restart of this
              LS."

Zinman/Walker/Jiang                                                  22
          ::= { tripPeerStatsEntry 5 }

      tripPeerFsmEstablishedTime OBJECT-TYPE
          SYNTAX      DateAndTime
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Indicates the time and date that this peer entered the
              established state."
          ::= { tripPeerStatsEntry 6 }

      tripPeerInUpdateElapsedTime OBJECT-TYPE
          SYNTAX      TimeInterval
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Elapsed time in hundredths of seconds since the last
              TRIP update message was received from the peer."
          ::= { tripPeerStatsEntry 7 }

Zinman/Walker/Jiang                                                  23
      tripPeerStateChangeTime OBJECT-TYPE
          SYNTAX       TimeStamp
          MAX-ACCESS   read-only
          STATUS       current
          DESCRIPTION
              "The value of sysUpTime when the last state change of
              tripPeerState took place."
          ::= { tripPeerStatsEntry 8 }

   -- TRIP Received Route Table.  This table contains
   -- all routes from all sources. Each entry consists
   -- of a route and its associated path attributes.

      tripRouteTable OBJECT-TYPE
          SYNTAX      SEQUENCE OF TripRouteEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The TRIP route table containing information about
              reachable routes that are to be added to service by the
              receiving LS."
          ::= { tripMIBObjects 7 }

      tripRouteEntry OBJECT-TYPE
          SYNTAX      TripRouteEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "Information about a route to a called destination."
          INDEX { applIndex,
                  tripRouteAppProtocol,
                  tripRouteAddressFamily,

Zinman/Walker/Jiang                                                  23
                  tripRouteAddress,
                  tripRoutePeer
                  }
          ::= { tripRouteTable 1 }

      TripRouteEntry ::= SEQUENCE {
          tripRouteAppProtocol                 TripAppProtocol,
          tripRouteAddressFamily               TripAddressFamily,
          tripRouteAddress                     OCTET STRING,
          tripRoutePeer                        TripId,
          tripRouteTRIBMask                    BITS,
          tripRouteAddressSequenceNumber       Integer32,
          tripRouteAddressOriginatorId         TripId,
          tripRouteNextHopServerIAddrType      InetAddressType,
          tripRouteNextHopServer               InetAddress,
          tripRouteNextHopServerPort           Integer32,           InetPortNumber,
          tripRouteNextHopServerItad           TripItad,
          tripRouteMultiExitDisc               Unsigned32,
          tripRouteLocalPref                   Unsigned32,

Zinman/Walker/Jiang                                                  24
          tripRouteAdvertisementPath           OCTET STRING,
          tripRouteRoutedPath                  OCTET STRING,
          tripRouteAtomicAggregate             TruthValue,
          tripRouteUnknown                     OCTET STRING,
          tripRouteWithdrawn                   TruthValue,
          tripRouteConverted                   TruthValue,
          tripRouteReceivedTime                TimeStamp
          }

      tripRouteAppProtocol OBJECT-TYPE
          SYNTAX      TripAppProtocol
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The protocol for which this entry of the routing table
              is maintained."
          ::= { tripRouteEntry 1 }

      tripRouteAddressFamily OBJECT-TYPE
          SYNTAX      TripAddressFamily
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "Specifies the type of address for the destination
              route."
          ::= { tripRouteEntry 2 }

      tripRouteAddress OBJECT-TYPE
          SYNTAX      OCTET STRING (SIZE(1..255))
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "This is the address (prefix) of the family type given

Zinman/Walker/Jiang                                                  24
              by Address Family of the destination. It is the prefix
              of addresses reachable from this gateway via the next
              hop server."
          REFERENCE
              "RFC 3219, section 5.1.1.1."
          ::= { tripRouteEntry 3 }

      tripRoutePeer OBJECT-TYPE
          SYNTAX      TripId
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The identifier of the peer where the route information
              was learned."
          ::= { tripRouteEntry 4 }

       tripRouteTRIBMask OBJECT-TYPE
          SYNTAX      BITS {
                       adjTribIns(0),

Zinman/Walker/Jiang                                                  25
                       extTrib(1),
                       locTrib(2),
                       adjTribOut(3)
                       }
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Indicates which TRIB(s) this entry belongs to. This is
              a bit-map of possible types. The various bit positions
              are:
              0    adjTribIns     The entry is of type adj-TRIBs-ins.
              1    extTrib        The entry is of type ext-TRIB.
              2    locTrib        The entry is of type loc-TRIB.
              3    adjTribOut     The entry is of type adj-TRIBs-out."
          DEFVAL { { } }
          ::= { tripRouteEntry 5 }

      tripRouteAddressSequenceNumber OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Indicates the version of the destination route
              originated by the LS identified by
              tripRouteAddressOriginatorId intra-domain attribute."
          ::= { tripRouteEntry 6 }

      tripRouteAddressOriginatorId OBJECT-TYPE
          SYNTAX      TripId
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "This is an intra-domain attribute indicating the

Zinman/Walker/Jiang                                                  25
              internal LS that originated the route into the ITAD."
          ::= { tripRouteEntry 7 }

      tripRouteNextHopServerIAddrType OBJECT-TYPE
          SYNTAX      InetAddressType
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The type of Inet Address of the
              tripRouteNextHopServer."
          REFERENCE
              "RFC 2851, section 3."
          ::= { tripRouteEntry 8 }

      tripRouteNextHopServer OBJECT-TYPE
          SYNTAX      InetAddress
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION

Zinman/Walker/Jiang                                                  26
              "Indicates the next hop that messages of a given
              protocol destined for tripRouteAddress should
              be sent to."
          ::= { tripRouteEntry 9 }

      tripRouteNextHopServerPort OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)      InetPortNumber
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The port of the next hop server that this route
              will use."
          ::= { tripRouteEntry 10 }

      tripRouteNextHopServerItad OBJECT-TYPE
          SYNTAX      TripItad
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Indicates the domain of the next hop."
          ::= { tripRouteEntry 11 }

      tripRouteMultiExitDisc OBJECT-TYPE
          SYNTAX      Unsigned32 (0..4294967295)
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "This is used by
              "The Multiple Exit Discriminator allows an LS to express a
              discriminate between, and indicate preference for one
              link between the domains over another link between the
              domains. for,
              otherwise similar routes to a neighbouring domain.
              A higher value represents a more preferred routing
              object."
          REFERENCE
              "RFC 3219, section 5.8"
          ::= { tripRouteEntry 12 }

Zinman/Walker/Jiang                                                  26

      tripRouteLocalPref OBJECT-TYPE
          SYNTAX      Unsigned32 (0..4294967295)
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Indicated the local LS's degree of preference for an
              advertised route destination."
          ::= { tripRouteEntry 13 }

      tripRouteAdvertisementPath OBJECT-TYPE
          SYNTAX      OCTET STRING (SIZE(4..252))
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Identifies the ITADs through wich routing information
              carried in an advertisement has passed.

Zinman/Walker/Jiang                                                  27
              This object is probably best represented as sequence of
              integer. For SMI compatibility, though, it is
              represented as OCTET STRING. This object is a sequence
              of ITADs in network byte order."
          ::= { tripRouteEntry 14 }

      tripRouteRoutedPath OBJECT-TYPE
          SYNTAX      OCTET STRING (SIZE(4..252))
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Identifies the ITADs through which messages sent using
              this route would pass. These are as subset of
              tripRouteAdvertisementPath.

              This object is probably best represented as sequence of
              integer. For SMI compatibility, though, it is
              represented as OCTET STRING.  This object is a sequence
              of ITADs in network byte order."
          ::= { tripRouteEntry 15 }

      tripRouteAtomicAggregate OBJECT-TYPE
          SYNTAX      TruthValue
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Indicates that a route may traverse domains not listed
              in tripRouteRoutedPath. If an LS selects the less
              specific route from a set of overlapping routes, then
              this value returns TRUE."
          ::= { tripRouteEntry 16 }

      tripRouteUnknown OBJECT-TYPE
          SYNTAX      OCTET STRING (SIZE(0..255))
          MAX-ACCESS  read-only

Zinman/Walker/Jiang                                                  27
          STATUS      current
          DESCRIPTION
              "One or more attributes not understood and dropped by
              this location server."
          REFERENCE
              "RFC 3219, section 4.3.2.3"
          ::= { tripRouteEntry 17 }

      tripRouteWithdrawn OBJECT-TYPE
          SYNTAX      TruthValue
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Indicates if this route is to be removed from service
              by the receiving LS."
          ::= { tripRouteEntry 18 }

Zinman/Walker/Jiang                                                  28
      tripRouteConverted OBJECT-TYPE
          SYNTAX TruthValue
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Indicates if this route has been converted to a
              different application protocol than it had originally."
          ::= { tripRouteEntry 19 }

      tripRouteReceivedTime OBJECT-TYPE
          SYNTAX       TimeStamp
          MAX-ACCESS   read-only
          STATUS       current
          DESCRIPTION
            "The value of sysUpTime when this route was received."
          ::= { tripRouteEntry 20 }

   --
   -- TRIP Received Route Community Table.
   --

      tripRouteCommunityTable OBJECT-TYPE
          SYNTAX      SEQUENCE OF TripRouteCommunityEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "A table containing a list of TRIP communities
              associated with a route. Each instance of
              tripPeerRouteTypeEntry has an instance in the
              tripRouteTable as a parent."
          REFERENCE
              "RFC 3219, section 5.9."
          ::= { tripMIBObjects 8 }

      tripRouteCommunityEntry OBJECT-TYPE

Zinman/Walker/Jiang                                                  28
          SYNTAX      TripRouteCommunityEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "Information about communities associated with a route.
              An entry with a tripRouteAddress of 00 and a
              tripRoutePeer of 0 refers to the local LS."
          INDEX { applIndex,
                  tripRouteAppProtocol,
                  tripRouteAddressFamily,
                  tripRouteAddress,
                  tripRoutePeer,
                  tripRouteCommunityId
                }
          ::= { tripRouteCommunityTable 1 }

Zinman/Walker/Jiang                                                  29
      TripRouteCommunityEntry ::= SEQUENCE {
           tripRouteCommunityId    TripCommunityId,
           tripRouteCommunityItad  TripItad
           }

      tripRouteCommunityId OBJECT-TYPE
          SYNTAX      TripCommunityId
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The community identifier."
          ::= { tripRouteCommunityEntry 1 }

      tripRouteCommunityItad OBJECT-TYPE
          SYNTAX      TripItad
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The ITAD associated with this community."
          ::= { tripRouteCommunityEntry 2 }

   --
   -- tripItadTopologyTable
   --

      tripItadTopologyTable OBJECT-TYPE
          SYNTAX      SEQUENCE OF TripItadTopologyEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The sequence of link connections between peers within
              an ITAD."
          ::= { tripMIBObjects 9 }

      tripItadTopologyEntry OBJECT-TYPE
          SYNTAX      TripItadTopologyEntry

Zinman/Walker/Jiang                                                  29
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "Information about a peer of the LS identified by
              tripItadTopologyOrigId."
          INDEX { applIndex, tripItadTopologyOrigId }
          ::= { tripItadTopologyTable 1 }

      TripItadTopologyEntry ::= SEQUENCE {
                  tripItadTopologyOrigId    TripId,
                  tripItadTopologySeqNum    Unsigned32
              }

      tripItadTopologyOrigId OBJECT-TYPE
          SYNTAX      TripId
          MAX-ACCESS  not-accessible

Zinman/Walker/Jiang                                                  30
          STATUS      current
          DESCRIPTION
              "Indicates the internal LS that originated
              the ITAD topology information into the ITAD."
          ::= { tripItadTopologyEntry 1 }

      tripItadTopologySeqNum OBJECT-TYPE
          SYNTAX      Unsigned32 (1..2147483647)
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Indicates the version of the ITAD topology
              originated by the LS identified by
              tripItadTopologyOrigId."
          ::= { tripItadTopologyEntry 2 }

   --
   -- tripItadTopologyIdTable
   --

      tripItadTopologyIdTable OBJECT-TYPE
          SYNTAX      SEQUENCE OF TripItadTopologyIdEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The list of other LS's within the ITAD domain that the
              LS identified by tripItadTopologyOrigId is currently
              peering. Each instance of tripItadTopologyIdEntry has an
              instance in the tripItadTopologyTable as a parent."
          ::= { tripMIBObjects 10 }

      tripItadTopologyIdEntry OBJECT-TYPE
          SYNTAX      TripItadTopologyIdEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION

Zinman/Walker/Jiang                                                  30
              "Information about a peer to the LS identified by
              tripItadTopologyOrigId."
          INDEX { applIndex,
                  tripItadTopologyOrigId,
                  tripItadTopologyId }
          ::= { tripItadTopologyIdTable 1 }

      TripItadTopologyIdEntry ::= SEQUENCE {
                  tripItadTopologyId            TripId
              }

      tripItadTopologyId OBJECT-TYPE
          SYNTAX      TripId
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION

Zinman/Walker/Jiang                                                  31
              "The index into this entry. Indicates the other location
              servers within the ITAD domain that this LS identified
              by tripItadTopologyOrigId is currently peering."
          ::= { tripItadTopologyIdEntry 1 }

   --
   -- Notification objects
   --

      tripNotifApplIndex    OBJECT-TYPE
          SYNTAX     Integer32 (1..2147483647)
          MAX-ACCESS accessible-for-notify
          STATUS     current
          DESCRIPTION
               "This object contains the applIndex as described
               in RFC 2788. It is used to bind this notification
               with a specific instance of TRIP entity."
          ::= { tripMIBNotifObjects 1 }

      tripNotifPeerAddrInetType OBJECT-TYPE
          SYNTAX      InetAddressType
          MAX-ACCESS  accessible-for-notify
          STATUS      current
          DESCRIPTION
              "The type of Inet Address of the tripNotifPeerAddr."
          REFERENCE
              "RFC 2851, section 3."
          ::= { tripMIBNotifObjects 2 }

      tripNotifPeerAddr OBJECT-TYPE
          SYNTAX      InetAddress (SIZE(0..125))
          MAX-ACCESS  accessible-for-notify
          STATUS      current
          DESCRIPTION
              "The remote IP address of this entry's TRIP peer. The
              size value of 125 has been assigned due to the sub

Zinman/Walker/Jiang                                                  31
              identifier of object types length limitation as
              defined in SMIv2."
          REFERENCE
              "RFC 2851, section 3."
          ::= { tripMIBNotifObjects 3 }

      tripNotifPeerErrCode OBJECT-TYPE
          SYNTAX      INTEGER {
                          messageHeader(1),
                          openMessage(2),
                          updateMessage(3),
                          holdTimerExpired(4),
                          finiteStateMachine(5),
                          cease(6),
                          tripNotification(7)
                      }

Zinman/Walker/Jiang                                                  32
          MAX-ACCESS  accessible-for-notify
          STATUS      current
          DESCRIPTION
              "Notification message of TRIP error. The meaning of this
              value is applicable to the following functions:

              messageHeader      - All errors detected while
                                   processing the TRIP message header.
              openMessage        - All errors detected while
                                   processing the OPEN message.
              updateMessage      - All errors detected while
                                   processing the UPDATE message.
              holdTimerExpired   - A notification generated when the
                                   hold timer expires.
              finiteStateMachine - All errors detected by the TRIP
                                   Finite State Machine.
              cease              - Any fatal error condition that the
                                   rest of the values do not cover.
              tripNotification   - Any error encountered while sending
                                   a notification message."
         ::= { tripMIBNotifObjects 4 }

      tripNotifPeerErrSubcode OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)
          MAX-ACCESS  accessible-for-notify
          STATUS      current
          DESCRIPTION
              "The sub error code associated with error code. The
              meaning of this value is dependent on the value of
              tripNotifPeerErrCode.

              Message Header (1) Error Subcodes:
              1 - Bad Message Length.
              2 - Bad Message Type.

              OPEN Message (2) Error Subcodes:

Zinman/Walker/Jiang                                                  32
              1 - Unsupported Version Number.
              2 - Bad Peer ITAD.
              3 - Bad TRIP Identifier.
              4 - Unsupported Optional Parameter.
              5 - Unacceptable Hold Time.
              6 - Unsupported Capability.
              7 - Capability Mismatch.

              UPDATE Message (3) Error Subcodes:
              1 - Malformed Attribute List.
              2 - Unrecognized Well-known Attribute.
              3 - Missing Well-known Mandatory Attribute.
              4 - Attribute Flags Error.
              5 - Attribute Length Error.
              6 - Invalid Attribute."
         ::= { tripMIBNotifObjects 5 }

Zinman/Walker/Jiang                                                  33
   --
   -- Notifications
   --
      tripEstablished NOTIFICATION-TYPE
          OBJECTS { tripNotifApplIndex }
          STATUS  current
          DESCRIPTION
              "The TRIP Established event is generated when the TRIP
              FSM enters the ESTABLISHED state."
          ::= { tripMIBNotifications 1 }

      tripFSM NOTIFICATION-TYPE
          OBJECTS { tripNotifApplIndex,
                    tripNotifPeerAddrInetType,
                    tripNotifPeerAddr,
                    tripNotifPeerErrCode,
                    tripNotifPeerErrSubcode,
                    tripPeerState
                  }
          STATUS  current
          DESCRIPTION
              "The trip FSM Event is generated when any error is
              detected by the TRIP Finite State Machine."
          ::= { tripMIBNotifications 2 }

      tripOpenMessageError NOTIFICATION-TYPE
          OBJECTS { tripNotifApplIndex,
                    tripNotifPeerAddrInetType,
                    tripNotifPeerAddr,
                    tripNotifPeerErrCode,
                    tripNotifPeerErrSubcode,
                    tripPeerState
                  }
          STATUS  current
          DESCRIPTION

Zinman/Walker/Jiang                                                  33
              "Errors detected while processing the OPEN message."
          ::= { tripMIBNotifications 3 }

      tripUpdateMessageError NOTIFICATION-TYPE
          OBJECTS { tripNotifApplIndex,
                    tripNotifPeerAddrInetType,
                    tripNotifPeerAddr,
                    tripNotifPeerErrCode,
                    tripNotifPeerErrSubcode,
                    tripPeerState
                  }
          STATUS  current
          DESCRIPTION
              "Errors detected while processing the UPDATE message."
          ::= { tripMIBNotifications 4 }

Zinman/Walker/Jiang                                                  34
      tripHoldTimerExpired NOTIFICATION-TYPE
          OBJECTS { tripNotifApplIndex,
                    tripNotifPeerAddrInetType,
                    tripNotifPeerAddr,
                    tripNotifPeerErrCode,
                    tripNotifPeerErrSubcode,
                    tripPeerState
                  }
          STATUS  current
          DESCRIPTION
              "The system does not receive successive messages within
              the period specified by the negotiated Hold Time."
          ::= { tripMIBNotifications 5 }

      tripConnectionCollision NOTIFICATION-TYPE
          OBJECTS { tripNotifApplIndex }
          STATUS  current
          DESCRIPTION
              "A pair of LSs tried to simultaneously to establish a
              transport connection to each other."
          ::= { tripMIBNotifications 6 }

      tripNotificationErr NOTIFICATION-TYPE
          OBJECTS { tripNotifApplIndex }
          STATUS  current
          DESCRIPTION
              "Generated if there is an error detected in a TRIP
              notification message sent with another cause. Note that
              the TRIP notification refered to in this object is not
              an SNMP notification, it is a specific message described
              in the TRIP specification."
          REFERENCE
              "RFC 3219, section  6.4."
          ::= { tripMIBNotifications 7 }

      --

Zinman/Walker/Jiang                                                  34
      -- Compliance Statements
      --
      tripCompliance MODULE-COMPLIANCE
          STATUS     current
          DESCRIPTION
               "The compliance statement for TRIP entities."

          MODULE -- this module
               MANDATORY-GROUPS { tripConfigGroup,
                                  tripPeerTableConfigGroup,
                                  tripRouteGroup,
                                  tripItadTopologyGroup,
                                  tripPeerTableStatsGroup }

          GROUP tripNotificationGroup
          DESCRIPTION

Zinman/Walker/Jiang                                                  35
              "This group is optional. A TRIP entity can choose not to
              send any notifications. If this group is implemented,
              the tripNotifObjectGroup must also be implemented."

          GROUP tripNotifObjectGroup
          DESCRIPTION
              "This group is optional. A TRIP entity can choose not to
              send any notifications. If this group is implemented,
              the tripNotificationGroup must also be implemented."

          MODULE NETWORK-SERVICES-MIB
               MANDATORY-GROUPS { applGroup }

          ::= { tripMIBCompliance 1 }

   --
   -- Object and event conformance groups
   --

      tripConfigGroup OBJECT-GROUP
          OBJECTS {
              tripCfgProtocolVersion,
              tripCfgItad,
              tripCfgIdentifier,
              tripCfgOperStatus,
              tripCfgAdminStatus,
              tripCfgAddrIAddrType,
              tripCfgAddr,
              tripCfgPort,
              tripCfgMinItadOriginationInterval,
              tripCfgMinRouteAdvertisementInterval,
              tripCfgMaxPurgeTime,
              tripCfgDisableTime,
              tripCfgSendReceiveMode,
              tripSupportedCommunityItad,
              tripSupportedCommunityStorage,

Zinman/Walker/Jiang                                                  35
              tripRouteTypeAddrFamilyId,
              tripSupportedCommunityRowStatus
          }
          STATUS current
          DESCRIPTION
              "The global objects for configuring trip."
          ::= { tripMIBGroups 1 }

      tripPeerTableConfigGroup OBJECT-GROUP
          OBJECTS {
              tripPeerIdentifier,
              tripPeerState,
              tripPeerAdminStatus,
              tripPeerNegotiatedVersion,
              tripPeerSendReceiveMode,
              tripPeerRemoteItad,

Zinman/Walker/Jiang                                                  36
              tripPeerConnectRetryInterval,
              tripPeerMaxRetryInterval,
              tripPeerHoldTime,
              tripPeerKeepAlive,
              tripPeerHoldTimeConfigured,
              tripPeerKeepAliveConfigured,
              tripPeerMaxPurgeTime,
              tripPeerDisableTime,
              tripPeerLearned,
              tripPeerStorage,
              tripPeerRtTypeAddrFamilyId,
              tripPeerRowStatus
              }

          STATUS current
          DESCRIPTION
              "The global objects for configuring the TRIP peer
              table."
          ::= { tripMIBGroups 2 }

      tripPeerTableStatsGroup OBJECT-GROUP
          OBJECTS {
              tripPeerInUpdates,
              tripPeerOutUpdates,
              tripPeerInTotalMessages,
              tripPeerOutTotalMessages,
              tripPeerFsmEstablishedTransitions,
              tripPeerFsmEstablishedTime,
              tripPeerInUpdateElapsedTime,
              tripPeerStateChangeTime
              }
          STATUS current
          DESCRIPTION
              "The global statistics the TRIP peer table."
          ::= { tripMIBGroups 3 }

Zinman/Walker/Jiang                                                  36

      tripRouteGroup OBJECT-GROUP
          OBJECTS {
              tripRouteTRIBMask,
              tripRouteAddressSequenceNumber,
              tripRouteAddressOriginatorId,
              tripRouteNextHopServerIAddrType,
              tripRouteNextHopServer,
              tripRouteNextHopServerPort,
              tripRouteNextHopServerItad,
              tripRouteMultiExitDisc,
              tripRouteLocalPref,
              tripRouteAdvertisementPath,
              tripRouteRoutedPath,
              tripRouteAtomicAggregate,
              tripRouteUnknown,
              tripRouteWithdrawn,

Zinman/Walker/Jiang                                                  37
              tripRouteConverted,
              tripRouteReceivedTime,
              tripRouteCommunityItad
              }

          STATUS current
          DESCRIPTION
              "The global objects for configuring route attribute."
          ::= { tripMIBGroups 4 }

      tripItadTopologyGroup OBJECT-GROUP
          OBJECTS {
              tripItadTopologySeqNum,
              tripItadTopologyId
              }
          STATUS current
          DESCRIPTION
              "The objects that define the TRIP ITAD topology."
          ::= { tripMIBGroups 5 }

      tripNotificationGroup NOTIFICATION-GROUP
          NOTIFICATIONS {
              tripEstablished,
              tripFSM,
              tripOpenMessageError,
              tripUpdateMessageError,
              tripHoldTimerExpired,
              tripConnectionCollision,
              tripNotificationErr
          }
          STATUS  current
          DESCRIPTION
               "A collection of notifications defined for TRIP."
          ::= { tripMIBGroups 6 }

      tripNotifObjectGroup OBJECT-GROUP

Zinman/Walker/Jiang                                                  37
          OBJECTS {
              tripNotifApplIndex,
              tripNotifPeerAddrInetType,
              tripNotifPeerAddr,
              tripNotifPeerErrCode,
              tripNotifPeerErrSubcode
              }
          STATUS current
          DESCRIPTION
              "The collection of objects that specify information for
              TRIP notifications."
          ::= { tripMIBGroups 7 }

END

Zinman/Walker/Jiang                                                  38

7.   Security Considerations

   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 managed objects in this MIB contain sensitive information since,
   collectively, they allow tracing and influencing of connections in
   TRIP devices and provide information of their connection
   characteristics.

   It is thus important to control even GET access to these objects and
   possibly to even encrypt the values of these object when sending
   them over the network via SNMP. Not all versions of SNMP provide
   features for such a secure environment.

   SNMPv1 by itself is not a secure environment. Even if the network
   itself is secure (for example by using IPSec), even then, there is
   no control as to who on the secure network is allowed to access and
   GET/SET (read/change/create/delete) the objects in this MIB.

   It is recommended that the implementers consider the security
   features as provided by the SNMPv3 framework. Specifically, the use
   of the User-based Security Model RFC 2574 [RFC2574] and the View-
   based Access Control Model RFC 2575 [RFC2575] is recommended.

   It is then a customer/user responsibility to ensure that the SNMP
   entity giving access to an instance of this MIB, is properly
   configured to give access to the objects only to those principals
   users) that have legitimate rights to indeed GET or SET
   (change/create/delete) them.

Zinman/Walker/Jiang                                                  38

8.   Revision History

8.1. Changes from <draft-zinman-trip-mib-00.txt>

   o Removed tripRouteAddressLen from the tripRouteTable.
   o Made use of INET-ADDRESS-MIB and it's TC's for IPv6 compliance.
   o Changed order of the enumeration of tripPeerSendReceiveMode to
     comform to TRIP draft.
   o Added objects tripPeerCircuitCapacity and tripPeerDSPCapacity to
     support TRIP for Gateways [24].
   o Removed tripPeerLastError and tripPeerState objects for
     tripEstablished notification.
   o Added local community object.
   o Added communities table for TRIP routes and removed community
     object from route table.
   o Added send/receive capability to local LS.
   o Added tripRouteAddressFamily as an Index to TripRouteEntry.

Zinman/Walker/Jiang                                                  39
   o Changed enumerations in tripRouteAddressFamily to decimal(1) and
     hexaDecimal(2).
   o Support for authentication mechanism from draft-ietf-iptel-trip-
     authen-00.txt.
   o Changed name of tripRoutePathSegment to
     tripRouteRoutedPathSegment.
   o Added tripRouteConverted to the routing table to signify a
     Converted Route.
   o Changed DEFVAL of tripPeerConnectRetryInterval from 60 to 120
     seconds.
   o Added DEFVAL to tripPeerKeepAlive of 30 seconds.
   o Added DEFVAL to tripMaxPurgeTime and tripPeerMaxPurgeTime of 10
     seconds.
   o Added DEFVAL to tripDisableTime and tripPeerDisableTime of 180
     seconds.
   o Changed DEFVAL of tripMinItadOriginationInterval and
     tripPeerMinItadOriginationInterval to 30 seconds.
   o Removed tripHoldTimeConfigured and tripKeepAliveConfigured from
     TripCfgEntry.
   o changed names from opMode to sendReceiveMode.

8.2. Changes from <draft-zinman-trip-mib-01.txt>

   o Added tripOperStatus.
   o Changed definition of textual convention TripAppProtocol to
     OBJECT IDENTIFIER. See [RFC3219] section 13.4
   o Changed definition of textual convention TripAddressFamily to
     OBJECT IDENTIFIER. See [RFC3219] section 13.3
   o Added object identifiers for tripSupportedProtocols and
     tripAddressFamilies.
   o Removed authentication tables.
   o Removed textual convention TripPublicKey.
   o Changed the position of the MIB branches slightly.
   o Changed name of tripPeerLastError to tripNotifPeerErrCode and
     MAX-ACCESS to accessible-for-notify.

Zinman/Walker/Jiang                                                  39
   o Separated tripNotifPeerErrSubcode from tripNotifPeerErrCode and
     made them both integers.
   o Added compliance statements.
   o Changed MAX-ACCESS of tripPeerRemoteItad to read-create.
   o Changed DEFVAL of tripPeerHoldTimeConfigured from 90 to 240.

8.3. Changes from <draft-ietf-iptel-trip-mib-00.txt>

   o Changed tripSupportedProtocols and tripAddressFamilies from
     OBJECT IDENTIFIER to OBJECT-IDENTITY.
   o Added tripRouteTRIBMask with syntax BITS to identify the type of
     TRIB the route belongs to.
   o Removed tripMinItadOriginationInterval and
     tripMinRouteAdvertisementInterval from the tripCfgTable because
     they also exist in the Peer table.
   o TripPeerRemoteItad made read-only because either the local
     application will determine the value.

Zinman/Walker/Jiang                                                  40
   o Add tripRouteTypeTable as a sub-table to tripCfgTable (similar to
     tripPeerRouteTypeTable).
   o Add timestamp to route table (when received), and last change
     of peer state.
   o Removed tripRouteBest since the best would be represented by
     LocTRIB or AdjTRIBOut

8.4. Changes from <draft-ietf-iptel-trip-mib-01.txt>

   o Reworded chapter 5 to reflect the use of NETWORK-SERVICES-MIB.
   o Removed some rowStatus objects that were not needed.
   o Added the branch tripMIBNotifObjects to hold the notification
     objects.
   o Added the branch tripMIBAdmin to hold TRIP address families and
     TRIP supported protocols.
   o Document now references RFC 3219 for TRIP.
   o General cleanup of descriptions.
   o Made descriptors for consistent by using the first part of the table
     name as a prefix.
   o Added objects with the StorageType textual convention for
     read-create tables.
   o Updated the references section to conform to IETF specifications.
   o Added full copyright statement.

8.5. Changes from <draft-ietf-iptel-trip-mib-02.txt>

   o Included TC InetPortNumber from RFC3291 INET-ADDRESS-MIB
   o Some description cleanup

9.   Full Copyright Statement

   Copyright (C) The Internet Society (2002).  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

Zinman/Walker/Jiang                                                  40
   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

Zinman/Walker/Jiang                                                  41
   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.

10.  References

   [RFC2026]   Bradner, S., "The Internet Standards Process _ Revision
               3", BCP 9, RFC 2026, October 1996.

   [RFC3219]   Rosenberg, J., Salama, H. and Squire, M., "Telephony
               Routing over IP (TRIP)", RFC 3219 January 2002.

   [RFC1771]   Rekhter, Y. and Li, T., "Border Gateway Protocol 4
               (BGP-4)", RFC 1771, March 1995.

   [RFC1657]   Willis, S., Burruss, J., and Chu, J., "Definitions of
               Managed Objects for the Fourth Version of the Border
               Gateway Protocol (BGP-4) using SMIv2", RFC 1657, July
               1994.

   [RFC2571]   Harrington, D., Presuhn, R., and B. Wijnen, "An
               Architecture for Describing SNMP Management Frameworks",
               RFC 2571, April 1999.

   [RFC1155]   Rose, M., and K. McCloghrie, "Structure and
               Identification of Management Information for
               TCP/IP-based Internets", STD 16, RFC 1155, May 1990.

   [RFC1212]   Rose, M., and K. McCloghrie, "Concise MIB Definitions",
               STD 16, RFC 1212, March 1991.

   [RFC1215]   M. Rose, "A Convention for Defining Traps for use with
               the SNMP", RFC 1215, March 1991.

   [RFC2578]   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.

   [RFC2579]   McCloghrie, K., Perkins, D., Schoenwaelder, J., Case,
               J., Rose, M., and S. Waldbusser, "Textual Conventions
               for SMIv2", STD 58, RFC 2579, April 1999.

   [RFC2580]   McCloghrie, K., Perkins, D., Schoenwaelder, J.,
               Case, J., Rose, M., and S. Waldbusser, "Conformance
               Statements for SMIv2", STD 58, RFC 2580, April 1999.

Zinman/Walker/Jiang                                                  41

   [RFC1157]   Case, J., Fedor, M., Schoffstall, M., and J. Davin,
               "Simple Network Management Protocol", STD 15, RFC 1157,
               May 1990.

Zinman/Walker/Jiang                                                  42
   [RFC1901]   Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
               "Introduction to Community-based SNMPv2", RFC 1901,
               January 1996.

   [RFC1906]   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.

   [RFC2572]   Case, J., Harrington D., Presuhn R., and B. Wijnen,
               "Message Processing and Dispatching for the Simple
               Network Management Protocol (SNMP)", RFC 2572, April
               1999.

   [RFC2574]   Blumenthal, U., and B. Wijnen, "User-based Security
               Model (USM) for version 3 of the Simple Network
               Management Protocol (SNMPv3)", RFC 2574, April 1999.

   [RFC1905]   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.

   [RFC2573]   Levi, D., Meyer, P., and B. Stewart, "SNMPv3
               Applications", RFC 2573, April 1999.

   [RFC2575]   Wijnen, B., Presuhn, R., and K. McCloghrie, "View-based
               Access Control Model (VACM) for the Simple Network
               Management Protocol (SNMP)", RFC 2575, April 1999.

   [RFC2570]   Case, J., Mundy, R., Partain, D., and B. Stewart,
               "Introduction to Version 3 of the Internet-standard
               Network Management Framework", RFC 2570, April 1999.

   [RFC2788]   Freed, N., Kille, s., "Network Services Monitoring MIB",
               RFC 2788, March 2000.

   [BCP0014]   Bradner, S., "Key words for use in RFCs to Indicate
               Requirement Levels", BCP 14, RFC 2119, March 1997.

11.  Author's Addresses

   David Zinman
   Editor
   phone: +1 613 791 2841
   Email: dzinman@sympatico.ca

   Dave Walker
   SS8 Networks, Inc.

Zinman/Walker/Jiang                                                  42
   495 March Road, Suite #500
   Ottawa, ON  K2K 3G1
   Canada

Zinman/Walker/Jiang                                                  43
   Phone: +1 613 592 2100
   Email: drwalker@ss8.com

   Jianping Jiang
   SS8 Networks, Inc.
   495 March Road, Suite #500
   Ottawa, ON  K2K 3G1
   Canada
   Phone: +1 613 592 2100
   Email: jianping@ss8.com

12.  Working Group

   IP Telephony (iptel) Working Group
   ==================================

   Mailing list: iptel@lists.bell-labs.com

   Chair:
     Jonathan Rosenberg <jdrosen@dynamicsoft.com>

   Transport Area Directors:
     Scott Bradner <sob@harvard.edu>
     Allison Mankin mankin@east.isi.edu

Zinman/Walker/Jiang                                                  43                                                  44