Internet Engineering Task Force                                J. Jiang
                                                              D. Zinman
   Internet Draft                                             D. Walker
   Document: draft-ietf-iptel-trip-mib-00.txt                    D. Zinman draft-ietf-iptel-trip-mib-01.txt              SS8 Networks
   Expires: February July 2002                                    Jianping Jiang
                                                           SS8 Networks, Inc
                                                            August 2001 Networks

                        Management Information Base
                   for Telephony Routing over IP (TRIP)
                   <draft-ietf-iptel-trip-mib-00.txt>
                    <draft-ietf-iptel-trip-mib-01.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].

   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) [2] devices.

   Since TRIP [2] is modelled modeled after the Border Gateway Protocol (BGP-4)
   [3], the managed objects for TRIP are also modelled modeled after RFC1657 -
   Definitions of Managed Objects for the Fourth Version of the Border
   Gateway Protocol (BGP-4) using SMIv2 [4].

Table of Contents

   Status of this Memo...................................................1
Abstract..............................................................1 Memo................................................1
   Abstract...........................................................1
   1.   Introduction.....................................................2   Introduction..................................................2
   2.   Conventions used in this document................................2 document.............................2
   3.   The SNMP Management Framework....................................2

Jiang/Walker/Zinman                                                  1 Framework.................................2
   4.   Overview.........................................................3   Overview......................................................3

Zinman/Walker/Jiang                                                   1
   5.   Structure of TRIP MIB............................................3
5.1. MIB.........................................3
   5.1  Textual Conventions..............................................4 Conventions...........................................4
   6.   TRIP MIB.........................................................4 MIB......................................................4
   7.   Security Considerations.........................................35 Considerations......................................38
   8.   Revision History................................................36 History.............................................39
   8.1. Changes from <draft-zinman-trip-mib-00.txt>.....................36 <draft-zinman-trip-mib-00.txt>..................39
   8.2. Changes from <draft-zinman-trip-mib-01.txt>.....................36 <draft-zinman-trip-mib-01.txt>..................39
   8.3. Changes from <draft-ietf-iptel-trip-mib-00.txt>..............40
   9.   References......................................................37   References...................................................40
   10.  Author's Address................................................38 Addresses...........................................42
   11.  Intellectual Property...........................................39
12.  Full Copyright Statement........................................39  Working Group................................................42

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 RFC-2119 [5].

3.   The SNMP Management Framework

   The SNMP Management Framework presently consists of five major
   components:

   o   An overall architecture, described in RFC 2571 [6].

   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 [7], STD 16, RFC 1212 [8] and RFC 1215 [9].
       The second version, called SMIv2, is described in STD 58, RFC
       2578 [10], STD 58, RFC 2579 [11] and STD 58, RFC 2580 [12].

   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 [13].  A second version of the
       SNMP message protocol, which is not an Internet standards track
       protocol, is called SNMPv2c and described in RFC 1901 [14] and
       RFC 1906 [15].  The third version of the message protocol is
       called SNMPv3 and described in RFC 1906 [15], RFC 2572 [21] and
       RFC 2574 [19].

Jiang/Walker/Zinman

Zinman/Walker/Jiang                                                   2
   o   Protocol operations for accessing management information.  The
       first set of protocol operations and associated PDU formats is
       described in STD 15, RFC 1157 [13].  A second set of protocol
       operations and associated PDU formats is described in RFC 1905
       [16].

   o   A set of fundamental applications described in RFC 2573
       [22] and the view-based access control mechanism described
       in RFC 2575 [17].

   A more detailed introduction to the current SNMP Management
   Framework can be found in RFC 2570 [24].

   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) [2] is an inter-domain application-
   layer control protocol that exchanges information with other between TRIP
   gateways
   location servers to provide efficient IP telephony routing. This MIB
   provides some managed objects for TRIP devices defined in Telephony
   Routing over IP <draft-ietf-iptel-trip-07.txt>. [2].

5.   Structure of TRIP MIB

   This MIB utilizes the framework described in RFC 2788 [18] 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 entity LS in the system. Each entity TRIP LS
   will then have an applIndex associated with it. The value assigned
   to applIndex will represent the distinct instance of TRIP.

   The MIB defines some system-wide scalar objects local to the TRIP
   instance, as well as 5 tables: the Trip Peer Table, the Trip Peer
   Stats Table, the Trip Route Table, the Trip Route Community Table,
   the Trip ITAD Topology Table, and the Trip ITAD Topology ID Table.

   The Trip Peer Table contains information about the state and current
   activity of the connections with TRIP peers. The Trip Peer Stats

Jiang/Walker/Zinman                                                  3
   Table augments the Trip Peer Table and contains statistics related

Zinman/Walker/Jiang                                                   3
   to the connections with TRIP peers.

   The Trip Route Table contains information on the route to a peers
   destination.  The Trip Route Community Table contains information on
   the communities associated with each route.

   The Trip ITAD Topology Table contains information on the sequence of
   link connections between peers within an ITAD. The Trip ITAD
   Topology ID Table is a subtable sub table of the Trip ITAD Topology Table and
   contains the list of location servers within the ITAD domain that
   the instance of this trip ITAD Topology currently peering.

5.1.

5.1  Textual Conventions

   The data types TripItad and TripId are used as textual conventions
   in this document. A TRIP ITAD is described in [2]. A TRIP ID is used
   as a distinct identifier for a TRIP entity. LS. A TripAppProtocol is
   used to identify an application protocol. A TripAddressFamily is
   used to define an address family. both 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,
    Gauge32,
       Counter32,
       mib-2
           FROM SNMPv2-SMI

       TEXTUAL-CONVENTION,
       DateAndTime,
       TimeInterval,
       TruthValue,
       TimeStamp,
       RowStatus
           FROM SNMPv2-TC

       OBJECT-GROUP,

Jiang/Walker/Zinman                                                  4
       MODULE-COMPLIANCE,

Zinman/Walker/Jiang                                                   4
       NOTIFICATION-GROUP
           FROM SNMPv2-CONF

       InetAddressType,
       InetAddress
           FROM INET-ADDRESS-MIB

       applIndex
           FROM NETWORK-SERVICES-MIB;

   tripMIB MODULE-IDENTITY
      LAST-UPDATED "200108200000Z" "200201100000Z"
      ORGANIZATION "IETF IPTel Working Group"
      CONTACT-INFO
      "Co-editor  Jianping Jiang
               SS8 Networks, Inc.
    postal:    55 Commerce Valley Drive West, Suite #510
               Thornhill, ON, L3T 7B9 Canada  David Zinman
       email:     jianping@ss8.com
    phone:     +1 905 889 5900     dzinman@sympatico.ca

       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  David Zinman  Jianping Jiang
                  SS8 Networks, Inc.
       postal:    495 March Road, Suite #500
                  Ottawa, ON, K2K 3G1 Canada
       email:     david@ss8.com     jianping@ss8.com
       phone:     +1 613 592 2100

    IP Telephony (iptel) Working Group
    ==================================
    Chair:
      Jonathan Rosenberg <jdrosen@dynamicsoft.com>

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

    Transport Area Advisor:
      Scott Bradner <sob@harvard.edu>

    Mailing List
    ============

Jiang/Walker/Zinman                                                  5
    iptel-admin@lists.bell-labs.com

    General information about the mailing list is at:
      http://lists.bell-labs.com/mailman/listinfo/iptel/

    Archives:
      http://lists.bell-labs.com/pipermail/iptel/"
       "

   DESCRIPTION
       "The MIB module describing Telephony Routing over IP (TRIP)" (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      "200102260000Z"
   DESCRIPTION
       "The initial revision of this MIB module was
    published as draft-zinman-trip-mib-00.txt." module."
   ::= { mib-2  } -- to be assigned by IANA

   --
   -- Textual Conventions
   --
   TripItad ::= TEXTUAL-CONVENTION
       STATUS current
       DESCRIPTION
          "The values for identifying the IP Telephony

Zinman/Walker/Jiang                                                   5
          Administrative Domain." Domain (ITAD)."
       SYNTAX Unsigned32 (0..4294967295)

   TripId ::= TEXTUAL-CONVENTION
       STATUS current
       DESCRIPTION
          "The range of legal values for a TRIP Identifier." Identifier uniquely identifies a LS within its
          ITAD. It is a 4 octet unsigned integer that may represent the
          IPv4 address of the Location Server (LS)."
       SYNTAX Unsigned32 (0..4294967295)

   TripAppProtocol ::= TEXTUAL-CONVENTION
       STATUS current
       DESCRIPTION
           "The application protocol used for communication with TRIP LS's. Protocol
           Location Servers (LS). Protocols defined in this document
           are:
               tripSupProtSIP
               tripSupProtH323Q931
               tripSupProtH323RAS
            tripSupProtH323ANNEXG.
               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 document MIB module are:
               tripAddrFamilyDecimal

Jiang/Walker/Zinman                                                  6
               tripAddrFamilyPentadecimal
            tripAddrFamilyE164.
               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
       DESCRIPTION
          "The version number of the TRIP protocol."
       SYNTAX Integer32 (1..255)

   TripSendReceiveMode ::= TEXTUAL-CONVENTION

Zinman/Walker/Jiang                                                   6
       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 }
       tripMIBCompliance    OBJECT IDENTIFIER ::=
                                       { tripMIBConformance 1 }
       tripMIBGroups        OBJECT IDENTIFIER ::=
                                       { tripMIBConformance 2 }

   --
   -- Supported protocols
   --
       tripSupportedProtocols OBJECT IDENTIFIER OBJECT-IDENTITY
          STATUS        current
          DESCRIPTION
              "Registration point for the protocols supported by TRIP."
          ::= { tripMIBObjects 100 }

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

   --
   -- Address Families
   --
       tripAddressFamilies    OBJECT IDENTIFIER OBJECT-IDENTITY
          STATUS        current
          DESCRIPTION
              "Registration point for the address families supported by
              TRIP."
          ::= { tripMIBObjects 101 }

       tripAddrFamilyDecimal
           OBJECT IDENTIFIER ::= { tripAddressFamilies 1 }
       tripAddrFamilyPentadecimal
           OBJECT IDENTIFIER ::= { tripAddressFamilies 2 }
       tripAddrFamilyE164
           OBJECT IDENTIFIER ::= { tripAddressFamilies 3 }

   --
   -- tripCfgTable
   --

Zinman/Walker/Jiang                                                   7
      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 entities. 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."

Jiang/Walker/Zinman                                                  7
          ::= { 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 {
              tripProtocolVersion               Integer32,
           tripLocalItad               TripProtocolVersion,
              tripItad                          TripItad,
              tripIdentifier                    TripId,
              tripOperStatus                    INTEGER,
              tripAdminStatus                   INTEGER,
           tripLocalAddrIAddrType
              tripAddrIAddrType                 InetAddressType,
           tripLocalAddr
              tripAddr                          InetAddress,
           tripLocalPort
              tripPort                          Integer32,
              tripMinItadOriginationInterval    Integer32,
              tripMinRouteAdvertisementInterval Integer32,
              tripMaxPurgeTime                  Integer32,
              tripDisableTime                   Integer32,
              tripSendReceiveMode               INTEGER
         }

      tripProtocolVersion    OBJECT-TYPE
          SYNTAX     Integer32 (1..255)     TripProtocolVersion
          MAX-ACCESS read-only
          STATUS     current
          DESCRIPTION
              "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 draft-ietf-iptel-trip-07.txt." the TRIP standard[2]."
          ::= { tripCfgEntry 1 }

   tripLocalItad

      tripItad   OBJECT-TYPE
          SYNTAX      TripItad

Zinman/Walker/Jiang                                                   8
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
              "The Local Internet Telephony Administrative domain."
          ::= { tripCfgEntry 2 }

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

Jiang/Walker/Zinman                                                  8
              "The object that identifies this TRIP Client."
          ::= { tripCfgEntry 3 }

      tripAdminStatus 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 }

      tripOperStatus OBJECT-TYPE
          SYNTAX      INTEGER {
                          up(1),
                          down(2)
                      }
          MAX-ACCESS  read-write  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.

               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

Zinman/Walker/Jiang                                                   9
              up(1) state."
          ::= { tripCfgEntry 5 }

   tripLocalAddrIAddrType

      tripAddrIAddrType OBJECT-TYPE
          SYNTAX      InetAddressType
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The type of Inet Address of the tripLocalAddr." tripAddr."
          REFERENCE
              "RFC 2851, section 3."
          ::= { tripCfgEntry 6 }

Jiang/Walker/Zinman                                                  9
   tripLocalAddr

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

   tripLocalPort

      tripPort OBJECT-TYPE
          SYNTAX      Integer32 (1..65535)
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
              "The local tcp/udp port on the local LS that this entry's TRIP the peer is using."
              connects to."
          ::= { tripCfgEntry 8 }

      tripMinItadOriginationInterval OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)
          UNITS       "Seconds"
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
              "Amount of time that must elapse between advertisement
              of update message that report changes within the
           Location Server's
              LS's own ITAD."
          DEFVAL { 30 }
          ::= { tripCfgEntry 9 }

      tripMinRouteAdvertisementInterval OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)
          UNITS       "Seconds"
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
              "Specifies minimal interval between successive
           advertisement

Zinman/Walker/Jiang                                                  10
              advertisements to a particular destination from an LS."
          DEFVAL { 30 }
          ::= { tripCfgEntry 10 }

      tripMaxPurgeTime OBJECT-TYPE
          SYNTAX      Integer32 (1..65535)
          UNITS       "Seconds"
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
              "Indicate the interval that the location server LS must maintain routes
              marked as withdrawn in its database."
          DEFVAL { 10 }
          ::= { tripCfgEntry 11 }

Jiang/Walker/Zinman                                                 10

      tripDisableTime OBJECT-TYPE
          SYNTAX      Integer32 (1..65535)
          UNITS       "Seconds"
          MAX-ACCESS  read-write
          STATUS      current
          DESCRIPTION
              "Indicate the interval that the TRIP module of the
            location server
              LS must be disabled while routes originated by this
              location server with high sequence numbers can be
              removed."
          DEFVAL { 180 }
          ::= { tripCfgEntry 12 }

      tripSendReceiveMode 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 peer."
              system."
          ::= { tripCfgEntry 13 }

   --
   -- TripRouteTypeTable
   --

       tripRouteTypeTable OBJECT-TYPE
         SYNTAX      SEQUENCE OF TripRouteTypeEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "The TRIP Route Type table contains one entry per

Zinman/Walker/Jiang                                                  11
             supported protocol - address family pair."
         ::= { tripMIBObjects 2 }

       tripRouteTypeEntry OBJECT-TYPE
         SYNTAX      TripRouteTypeEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "Entry containing information about the route type that
             the TRIP entity supports."
         INDEX { applIndex,
                 tripRtTypeProtocolId,
                 tripRtTypeAddrFamilyId }
           ::= { tripRouteTypeTable 1 }

       TripRouteTypeEntry ::= SEQUENCE {
           tripRtTypeProtocolId         TripAppProtocol,
           tripRtTypeAddrFamilyId       TripAddressFamily,
           tripRtTypeRowStatus          RowStatus
       }

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

       tripRtTypeAddrFamilyId OBJECT-TYPE
         SYNTAX      TripAddressFamily
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "The object identifier of an address family that this peer
             belongs to."
         ::= { tripRouteTypeEntry 2 }

      tripRtTypeRowStatus OBJECT-TYPE
          SYNTAX      RowStatus
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "This object is used to instantiate a row in this table.
              The normal row status values of createAndGo(4),
              createAndWait(5) and delete(6) have no application in
              this table."
          ::= { tripRouteTypeEntry 3 }

   --

Zinman/Walker/Jiang                                                  12
   -- tripSupportedCommunityTable
   --

      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 some
              common
           property. 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
           "draft-ietf-iptel-trip-07.txt, J. Rosenberg et al,
           section 5.9."
              "The TRIP standard[2]"
          ::= { tripMIBObjects 2 3 }

      tripSupportedCommunityEntry OBJECT-TYPE
          SYNTAX      TripSupportedCommunityEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "Entry containing information about a community. A TRIP
              community is a group of destinations that share some

Jiang/Walker/Zinman                                                 11
              common property." 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         TripItad,         TripCommunityId,
          tripSupportedCommunityItad       TripItad,
          tripSupportedCommunityRowStatus  RowStatus
      }

      tripSupportedCommunityId OBJECT-TYPE
          SYNTAX      TripItad      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 }

Zinman/Walker/Jiang                                                  13
      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." rows remotely by a manager.
              A value for tripSupportedCommunityItad must be set
              for row creation to be successful.  If that method
              already exists for a particular applIndex, the row
              create operation will fail."
          ::= { tripSupportedCommunityEntry 3 }

   --
   -- 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

Jiang/Walker/Zinman                                                 12
          DESCRIPTION
              "Entry containing information about the connection with
              a TRIP peer."
          INDEX { applIndex,
                  tripPeerRemoteAddrInetType,
               tripPeerRemoteAddr
                  tripPeerRemoteAddr,
                  tripPeerRemotePort }
            ::= {tripPeerTable 1}

      TripPeerEntry ::= SEQUENCE {
          tripPeerRemoteAddrInetType            InetAddressType,
          tripPeerRemoteAddr                    InetAddress,
          tripPeerRemotePort                    Integer32,
          tripPeerIdentifier                    TripId,
          tripPeerState                         INTEGER,
          tripPeerAdminStatus                   INTEGER,
          tripPeerNegotiatedVersion             Integer32,             TripProtocolVersion,
          tripPeerSendReceiveMode               INTEGER,
       tripPeerRemotePort                    Integer32,
          tripPeerRemoteItad                    TripItad,
          tripPeerConnectRetryInterval          Integer32,

Zinman/Walker/Jiang                                                  14
          tripPeerMaxRetryInterval              Integer32,
          tripPeerHoldTime                      Integer32,
          tripPeerKeepAlive                     Integer32,
          tripPeerHoldTimeConfigured            Integer32,
          tripPeerKeepAliveConfigured           Integer32,
       tripPeerMinItadOriginationInterval    Integer32,
       tripPeerMinRouteAdvertisementInterval Integer32,
          tripPeerMaxPurgeTime                  Integer32,
          tripPeerDisableTime                   Integer32,
          tripPeerLearned                       TruthValue,
          tripPeerRowStatus                     RowStatus
      }

      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."

Jiang/Walker/Zinman                                                 13
          ::= { tripPeerEntry 2 }

   tripPeerIdentifier

      tripPeerRemotePort OBJECT-TYPE
          SYNTAX      TripId      Integer32 (1..65535)
          MAX-ACCESS  read-only  not-accessible
          STATUS      current
          DESCRIPTION
           "TRIP identifier of this entry's
              "The remote port for the TCP connection between the
              TRIP peer." peers."
          ::= { tripPeerEntry 3 }

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

      tripPeerState OBJECT-TYPE

Zinman/Walker/Jiang                                                  15
          SYNTAX      INTEGER {
                          idle(1),
                          connect(2),
                          active(3),
                          openSent(4),
                          openConfirm(5),
                          established(6)
                      }
          MAX-ACCESS  read-only
          STATUS      current
          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 4 5 }

      tripPeerAdminStatus OBJECT-TYPE
          SYNTAX      INTEGER {

Jiang/Walker/Zinman                                                 14
                          up(1),
                          down(2)
                      }
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION
           "The desired
              "This object is used to affect the TRIP connection state." state.

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

Zinman/Walker/Jiang                                                  16
              down(2) : disconnect the connection from the peer LS and
                        do not allow any further connections to this
                        peer."
          ::= { tripPeerEntry 5 6 }

      tripPeerNegotiatedVersion OBJECT-TYPE
          SYNTAX      Integer32 (1..255)      TripProtocolVersion
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The negotiated version of TRIP running between this
              local entity and this peer."
          ::= { tripPeerEntry 6 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 7 }

   tripPeerRemotePort OBJECT-TYPE
       SYNTAX      Integer32 (1..65535)
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The remote port for the TCP connection between the
           TRIP peers."
       ::= { tripPeerEntry 8 }

      tripPeerRemoteItad OBJECT-TYPE
          SYNTAX      TripItad
          MAX-ACCESS  read-create  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
          STATUS      current

Jiang/Walker/Zinman                                                 15
          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."
              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 }

Zinman/Walker/Jiang                                                  17
      tripPeerMaxRetryInterval OBJECT-TYPE
          SYNTAX      Integer32 (0..2147483647)
          UNITS       "Seconds"
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION
              "Specifies the maximum amount of time that will elapse
              between connection retries." 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." messages. This value is negotiated with the
              remote when a connection is established."
          ::= { tripPeerEntry 13 }

      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 }

Jiang/Walker/Zinman                                                 16

      tripPeerKeepAliveConfigured OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)

Zinman/Walker/Jiang                                                  18
          UNITS       "Seconds"
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION
              "Specifies the amount of time that must elapse between
              keep alive messages."
          DEFVAL { 30 }
          ::= { tripPeerEntry 15 }

   tripPeerMinItadOriginationInterval OBJECT-TYPE
       SYNTAX      Integer32 (0..2147483647)
       UNITS       "Seconds"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Amount of time that must elapse between advertisement
           of update message that report changes within the Location
           Server's own ITAD."
       DEFVAL { 30 }
       ::= { tripPeerEntry 16 }

   tripPeerMinRouteAdvertisementInterval OBJECT-TYPE
       SYNTAX      Integer32 (1..2147483647)
       UNITS       "Seconds"
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
           "Specifies minimal interval between successive
           advertisement to a particular destination from an LS."
       DEFVAL { 30 }
       ::= { tripPeerEntry 17 }

      tripPeerMaxPurgeTime OBJECT-TYPE
          SYNTAX      Integer32 (1..65535)
          UNITS       "Seconds"
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION
              "Indicate the interval that the location server LS must maintain routes
              marked as withdrawn in its database."
          DEFVAL { 10 }
          ::= { tripPeerEntry 18 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
           location server peer
              LS must be disabled while routes

Jiang/Walker/Zinman                                                 17 originated by this location server the local
              LS with high sequence numbers can be removed."
          DEFVAL { 180 }
          ::= { tripPeerEntry 19 17 }

   tripPeerRowStatus

       tripPeerLearned OBJECT-TYPE
           SYNTAX      RowStatus      TruthValue
           MAX-ACCESS  read-create  read-only
           STATUS      current
           DESCRIPTION
           "This
               "Indicates whether this entry was learned or
               configured."
           DEFVAL { false }
           ::= { tripPeerEntry 18 }

      tripPeerRowStatus OBJECT-TYPE
          SYNTAX      RowStatus
          MAX-ACCESS  read-create
          STATUS      current
          DESCRIPTION
              "The row status of the entry. This object is used required to
              create and or delete rows in remotely by a manager. If that
              method already exists for a particular applIndex, the
           tripPeerTable." row
              create operation will fail."
          ::= { tripPeerEntry 20 19 }

Zinman/Walker/Jiang                                                  19
   --
   --     tripPeerRouteTypeTable
   --
       tripPeerRouteTypeTable OBJECT-TYPE
         SYNTAX      SEQUENCE OF TripPeerRouteTypeEntry
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "The TRIP peer Route Type table. This table contains one entry per
             supported protocol - address family pair." 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 }
           ::= { tripPeerRouteTypeTable 1 }

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

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

Jiang/Walker/Zinman                                                 18
         ::= { tripPeerRouteTypeEntry 1 }

       tripPeerRtTypeAddrFamilyId OBJECT-TYPE
         SYNTAX      TripAddressFamily
         MAX-ACCESS  not-accessible
         STATUS      current
         DESCRIPTION
             "The object identifier of an address family that this peer

Zinman/Walker/Jiang                                                  20
             belongs to."
         ::= { tripPeerRouteTypeEntry 2 }

      tripPeerRtTypeRowStatus OBJECT-TYPE
          SYNTAX      RowStatus
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "This object is used to instantiate a row in this table.
              The normal row status values of createAndGo(4),
              createAndWait(5) and delete(6) have no application in
              this table."
          ::= { tripPeerRouteTypeEntry 3 }

   --
   -- 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,
          tripPeerOutTotalMessages            Counter32,
          tripPeerFsmEstablishedTransitions   Counter32,
          tripPeerFsmEstablishedTime          DateAndTime,
          tripPeerInUpdateElapsedTime         Gauge32

Jiang/Walker/Zinman                                                 19         TimeInterval,
          tripPeerStateChangeTime             TimeStamp
      }

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

Zinman/Walker/Jiang                                                  21
          STATUS      current
          DESCRIPTION
              "The number of TRIP update messages received from this
              peer since the last restart of this location server." LS."
          ::= { tripPeerStatsEntry 1 }

      tripPeerOutUpdates OBJECT-TYPE
          SYNTAX      Counter32
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The number of TRIP update messages transmitted 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 to from the
              remote peer on this connection since the last restart
              of this location server." 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 location server." 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
           location server."
              LS."
          ::= { tripPeerStatsEntry 5 }

      tripPeerFsmEstablishedTime OBJECT-TYPE
          SYNTAX      DateAndTime
          MAX-ACCESS  read-only

Jiang/Walker/Zinman                                                 20
          STATUS      current
          DESCRIPTION
              "Indicates how long in seconds the time and date that this peer has been in entered the
              established state."
          ::= { tripPeerStatsEntry 6 }

Zinman/Walker/Jiang                                                  22
      tripPeerInUpdateElapsedTime OBJECT-TYPE
          SYNTAX      Gauge32      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 }

      tripPeerStateChangeTime OBJECT-TYPE
          SYNTAX       TimeStamp
          MAX-ACCESS   read-only
          STATUS       current
          DESCRIPTION
              "The value of sysUpTime when the last state change 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,
                  tripRouteAddress,
                  tripRoutePeer
                  }
          ::= { tripRouteTable 1 }

      TripRouteEntry ::= SEQUENCE {
          tripRouteAppProtocol                 TripAppProtocol,
          tripRouteAddressFamily               TripAddressFamily,
          tripRouteAddress                     OCTET STRING,

Zinman/Walker/Jiang                                                  23
          tripRoutePeer                        TripId,
          tripRouteTRIBMask                    BITS,
          tripRouteAddressSequenceNumber       Integer32,
          tripRouteAddressOriginatorId         TripItad,         TripId,
          tripRouteNextHopServerIAddrType      InetAddressType,
          tripRouteNextHopServer               InetAddress,
          tripRouteNextHopServerPort           Integer32,

Jiang/Walker/Zinman                                                 21
          tripRouteNextHopServerItad           TripItad,
          tripRouteMultiExitDisc               Unsigned32,
          tripRouteLocalPref                   Unsigned32,
          tripRouteAdvertisementPath           OCTET STRING,
          tripRouteRoutedPath                  OCTET STRING,
          tripRouteAtomicAggregate             TruthValue,
               tripRouteBest                        TruthValue,
          tripRouteUnknown                     OCTET STRING,
          tripRouteWithdrawn                   TruthValue,
          tripRouteConverted                   TruthValue                   TruthValue,
          tripRouteReceivedTime                TimeStamp
          }

      tripRouteAppProtocol OBJECT-TYPE
          SYNTAX      TripAppProtocol
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The protocol for which this 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..32)) (SIZE(1..255))
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "This is an address (prefix) of the family type given by
              Address Family of the destination."
          ::= { tripRouteEntry 3 }

      tripRoutePeer OBJECT-TYPE
          SYNTAX      TripId
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The identifier of the peer where the route information

Zinman/Walker/Jiang                                                  24
              was learned."
          ::= { tripRouteEntry 4 }

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

Jiang/Walker/Zinman                                                 22
              "Indicates the version of the destination route
              originated by the location server LS identified by
              tripRouteAddressOriginatorId intra-domain attribute."
          ::= { tripRouteEntry 5 6 }

      tripRouteAddressOriginatorId OBJECT-TYPE
          SYNTAX      TripItad      TripId
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "This is an intra-domain attribute indicating the
              internal location server LS that originated the route into the ITAD."
          ::= { tripRouteEntry 6 7 }

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

Zinman/Walker/Jiang                                                  25
              "RFC 2851, section 3."
          ::= { tripRouteEntry 7 8 }

      tripRouteNextHopServer OBJECT-TYPE
          SYNTAX      InetAddress
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Indicates the next hop that messages of a given
              protocol destined for tripRouteAddress should
              be sent to."
          ::= { tripRouteEntry 8 9 }

      tripRouteNextHopServerPort OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "The port of the next hop server that this route
              will use."
          ::= { tripRouteEntry 9 10 }

      tripRouteNextHopServerItad OBJECT-TYPE
          SYNTAX      TripItad
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Indicates the domain of the next hop."
          ::= { tripRouteEntry 10 11 }

Jiang/Walker/Zinman                                                 23

      tripRouteMultiExitDisc OBJECT-TYPE
          SYNTAX      Unsigned32 (0..4294967295)
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "When two ITADs are connected by more than one set of
              peers, it is used to descriminate between multiple exit
              points to an adjacent ITAD."
          ::= { tripRouteEntry 11 12 }

      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 12 13 }

      tripRouteAdvertisementPath OBJECT-TYPE
          SYNTAX      OCTET STRING (SIZE(4..252))
          MAX-ACCESS  read-only

Zinman/Walker/Jiang                                                  26
          STATUS      current
          DESCRIPTION
              "Identifies the ITADs through wich routing information
              carried in an advertisement has passed.

              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 13 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 14 15 }

      tripRouteAtomicAggregate OBJECT-TYPE
          SYNTAX      TruthValue
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION

Jiang/Walker/Zinman                                                 24
              "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 15 }

   tripRouteBest OBJECT-TYPE
       SYNTAX      TruthValue
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "An indication of whether this route was chosen as the
           best TRIP route."
       ::= { tripRouteEntry 16 }

      tripRouteUnknown OBJECT-TYPE
          SYNTAX      OCTET STRING (SIZE(0..255))
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "One or more attributes not understood by this location
              server."
          ::= { 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

Zinman/Walker/Jiang                                                  27
              the receiving LS."
          ::= { tripRouteEntry 18 }

      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 }

--
-- TRIP Received Route CommunityTable.
--

   tripRouteCommunityTable

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

   --
   -- TRIP Received Route CommunityTable.
   --

      tripRouteCommunityTable OBJECT-TYPE
          SYNTAX      SEQUENCE OF TripRouteCommunityEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "A table containing a list of TRIP communities associated

Jiang/Walker/Zinman                                                 25
              with a route." route. Each instance of tripPeerRouteTypeEntry has
              an instance in the tripRouteTable as a parent."
          REFERENCE
           "draft-ietf-iptel-trip-07.txt, J. Rosenberg et al,
           section 5.9."
              "The TRIP standard[2]"
          ::= { tripMIBObjects 8 }

      tripRouteCommunityEntry OBJECT-TYPE
          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
                }

Zinman/Walker/Jiang                                                  28
          ::= { tripRouteCommunityTable 1 }

      TripRouteCommunityEntry ::= SEQUENCE {
           tripRouteCommunityId    TripItad,    TripCommunityId,
           tripRouteCommunityItad  TripItad
           }

      tripRouteCommunityId OBJECT-TYPE
          SYNTAX      TripItad      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

Jiang/Walker/Zinman                                                 26
              "The sequence of link connections between peers within
              an ITAD."
          ::= { tripMIBObjects 9 }

      tripItadTopologyEntry OBJECT-TYPE
          SYNTAX      TripItadTopologyEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "Information about a peer of the location server LS identified by
              tripOriginatorIdentifier."
          INDEX { applIndex, tripItadTopologyOrigId }
          ::= { tripItadTopologyTable 1 }

      TripItadTopologyEntry ::= SEQUENCE {
                  tripItadTopologyOrigId    TripItad,    TripId,
                  tripItadTopologySeqNum    Integer32
              }

Zinman/Walker/Jiang                                                  29
      tripItadTopologyOrigId OBJECT-TYPE
          SYNTAX      TripItad      TripId
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "Indicates the internal location server LS that originated
              the ITAD topology information into the ITAD."
          ::= { tripItadTopologyEntry 1 }

      tripItadTopologySeqNum OBJECT-TYPE
          SYNTAX      Integer32 (1..2147483647)
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "Indicates the version of the ITAD topology
              originated by the location server LS identified by
              tripOriginatorIdentifier."
          ::= { tripItadTopologyEntry 2 }

   --
   -- tripItadTopologyIdTable
   --

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

      tripItadTopologyIdEntry OBJECT-TYPE

Jiang/Walker/Zinman                                                 27
          SYNTAX      TripItadTopologyIdEntry
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "Information about a peer to the location server LS identified by
              tripOriginatorIdentifier."
          INDEX { applIndex,
                  tripItadTopologyOrigId,
                  tripItadTopologyId }
          ::= { tripItadTopologyIdTable 1 }

      TripItadTopologyIdEntry ::= SEQUENCE {
                  tripItadTopologyId            TripId,
                  tripItadTopologyIdRowStatus   RowStatus
              }

Zinman/Walker/Jiang                                                  30
      tripItadTopologyId OBJECT-TYPE
          SYNTAX      TripId
          MAX-ACCESS  not-accessible
          STATUS      current
          DESCRIPTION
              "The index into this entry. Indicates the other location
              servers within the ITAD domain that this location server LS identified by
              tripOriginatorIdentifier is currently peering."
          ::= { tripItadTopologyIdEntry 1 }

      tripItadTopologyIdRowStatus OBJECT-TYPE
          SYNTAX      RowStatus
          MAX-ACCESS  read-only
          STATUS      current
          DESCRIPTION
              "This object is used to instantiate a row in this table.
              The normal row status values of createAndGo(4),
              createAndWait(5) and delete(6) have no application in
              this table."
          ::= { tripItadTopologyIdEntry 2 }

   --
   -- Notification objects
   --

      tripNotifApplIndex    OBJECT-TYPE
          SYNTAX     INTEGER     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."
          ::= { tripMIBNotifications 1 }

      tripNotifPeerAddrInetType OBJECT-TYPE

Jiang/Walker/Zinman                                                 28
          SYNTAX      InetAddressType
          MAX-ACCESS  accessible-for-notify
          STATUS      current
          DESCRIPTION
              "The type of Inet Address of the tripNotifPeerAddr."
          REFERENCE
              "RFC 2851, section 3."
          ::= { tripMIBNotifications 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

Zinman/Walker/Jiang                                                  31
              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."
          ::= { tripMIBNotifications 3 }

      tripNotifPeerErrCode OBJECT-TYPE
          SYNTAX      INTEGER {
                          messageHeader(1),
                          openMessage(2),
                          updateMessage(3),
                          holdTimerExpired(4),
                          finiteStateMachine(5),
                          cease(6),
                          tripNotification(7)
                      }
          MAX-ACCESS  accessible-for-notify
          STATUS      current
          DESCRIPTION
              "Notification message of TRIP error. The meaning of this
              value is applicable to the following functions:

              1 - message header.
                  All errors detected while processing the TRIP message
                  header.
              2 - open message.
                  All errors detected while processing the OPEN
                  message.
              3 - update message.
                  All errors detected while processing the UPDATE
                  message.
              4 - hold timer expired.
                  A notification generated when the hold timer expires.
              5 - finite state machine.
                  All errors detected by the TRIP Finite State Machine.
              6 - cease.
                  Any fatal error condition that the rest of the values
                  do not cover.
              7 - trip notification message.

Jiang/Walker/Zinman                                                 29
                  Any error encountered while sending a notification
                  message."
         ::= { tripMIBNotifications 4 }

      tripNotifPeerErrSubcode OBJECT-TYPE
          SYNTAX      Integer32 (1..7)
          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.

Zinman/Walker/Jiang                                                  32
              Message Header (1) Error Subcodes:
              1 - Bad Message Length.
              2 - Bad Message Type.

              OPEN Message (2) Error Subcodes:
              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."
         ::= { tripMIBNotifications 5 }

   --
   -- Notifications
   --
      tripEstablished NOTIFICATION-TYPE
          STATUS  current
          DESCRIPTION
              "The TRIP Established event is generated when the TRIP
              FSM enters the ESTABLISHED state."
          ::= { tripMIBNotifications 6 }

      tripFSM NOTIFICATION-TYPE
          OBJECTS { tripNotifApplIndex,
                    tripNotifPeerAddrInetType,
                    tripNotifPeerAddr,
                    tripNotifPeerErrCode,
                    tripNotifPeerErrSubcode,
                    tripPeerState
                  }

Jiang/Walker/Zinman                                                 30
          STATUS  current
          DESCRIPTION
              "The trip FSM Event is generated when any error is
              detected by the TRIP Finite State Machine."
          ::= { tripMIBNotifications 7 }

      tripOpenMessageError NOTIFICATION-TYPE
          OBJECTS { tripNotifApplIndex,
                    tripNotifPeerAddrInetType,
                    tripNotifPeerAddr,

Zinman/Walker/Jiang                                                  33
                    tripNotifPeerErrCode,
                    tripNotifPeerErrSubcode,
                    tripPeerState
                  }
          STATUS  current
          DESCRIPTION
              "Errors detected while processing the OPEN message."
          ::= { tripMIBNotifications 8 }

      tripUpdateMessageError NOTIFICATION-TYPE
          OBJECTS { tripNotifApplIndex,
                    tripNotifPeerAddrInetType,
                    tripNotifPeerAddr,
                    tripNotifPeerErrCode,
                    tripNotifPeerErrSubcode,
                    tripPeerState
                  }
          STATUS  current
          DESCRIPTION
              "Errors detected while processing the UPDATE message."
          ::= { tripMIBNotifications 9 }

      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 10 }

      tripConnectionCollision NOTIFICATION-TYPE
          OBJECTS { tripNotifApplIndex }
          STATUS  current
          DESCRIPTION
              "A pair of LSs tried to simultaneously to establish a
              transport connection to each other."
          ::= { tripMIBNotifications 11 }

Jiang/Walker/Zinman                                                 31

      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

Zinman/Walker/Jiang                                                  34
              in the TRIP specification."
          REFERENCE
           "draft-ietf-iptel-trip-07.txt, J. Rosenberg et al,
           section 6.4."
              "The TRIP standard[2]"
          ::= { tripMIBNotifications 12 }

      --
      -- 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
              "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 { applRFC1565Group applGroup }

          ::= { tripMIBCompliance 1 }

   --
   -- Object and event conformance groups
   --

      tripConfigGroup OBJECT-GROUP

Jiang/Walker/Zinman                                                 32
          OBJECTS {
              tripProtocolVersion,
           tripLocalItad,
              tripItad,
              tripIdentifier,
              tripOperStatus,
              tripAdminStatus,
           tripLocalAddrIAddrType,
           tripLocalAddr,
           tripLocalPort,
              tripAddrIAddrType,
              tripAddr,

Zinman/Walker/Jiang                                                  35
              tripPort,
              tripMinItadOriginationInterval,
              tripMinRouteAdvertisementInterval,
              tripMaxPurgeTime,
              tripDisableTime,
              tripSendReceiveMode,
              tripSupportedCommunityItad,
           tripSupportedCommunityRowStatus
              tripSupportedCommunityRowStatus,
              tripRtTypeRowStatus
          }
          STATUS current
          DESCRIPTION
              "The global objects for configuring trip."
          ::= { tripMIBGroups 1 }

      tripPeerTableConfigGroup OBJECT-GROUP
          OBJECTS {
              tripPeerIdentifier,
              tripPeerState,
              tripPeerAdminStatus,
              tripPeerNegotiatedVersion,
              tripPeerSendReceiveMode,
           tripPeerRemotePort,
              tripPeerRemoteItad,
              tripPeerConnectRetryInterval,
              tripPeerMaxRetryInterval,
              tripPeerHoldTime,
              tripPeerKeepAlive,
              tripPeerHoldTimeConfigured,
              tripPeerKeepAliveConfigured,
           tripPeerMinItadOriginationInterval,
           tripPeerMinRouteAdvertisementInterval,
              tripPeerMaxPurgeTime,
              tripPeerDisableTime,
              tripPeerLearned,
              tripPeerRowStatus
              }

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

      tripPeerTableStatsGroup OBJECT-GROUP
          OBJECTS {
              tripPeerInUpdates,
              tripPeerOutUpdates,

Jiang/Walker/Zinman                                                 33
              tripPeerInTotalMessages,
              tripPeerOutTotalMessages,
              tripPeerFsmEstablishedTransitions,
              tripPeerFsmEstablishedTime,
           tripPeerInUpdateElapsedTime
              tripPeerInUpdateElapsedTime,
              tripPeerStateChangeTime
              }

Zinman/Walker/Jiang                                                  36
          STATUS current
          DESCRIPTION
              "The global statistics the TRIP peer table."
          ::= { tripMIBGroups 3 }

      tripRouteGroup OBJECT-GROUP
          OBJECTS {
              tripRouteTRIBMask,
              tripRouteAddressSequenceNumber,
              tripRouteAddressOriginatorId,
              tripRouteNextHopServerIAddrType,
              tripRouteNextHopServer,
              tripRouteNextHopServerPort,
              tripRouteNextHopServerItad,
              tripRouteMultiExitDisc,
              tripRouteLocalPref,
              tripRouteAdvertisementPath,
              tripRouteRoutedPath,
              tripRouteAtomicAggregate,
           tripRouteBest,
              tripRouteUnknown,
              tripRouteWithdrawn,
              tripRouteConverted,
              tripRouteReceivedTime,
              tripRouteCommunityItad,
              tripPeerRtTypeRowStatus
              }

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

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

      tripNotificationGroup NOTIFICATION-GROUP
          NOTIFICATIONS {
              tripEstablished,
              tripFSM,
              tripOpenMessageError,

Jiang/Walker/Zinman                                                 34
              tripUpdateMessageError,
              tripHoldTimerExpired,
              tripConnectionCollision,
              tripNotificationErr
          }

Zinman/Walker/Jiang                                                  37
          STATUS  current
          DESCRIPTION
               "A collection of notifications defined for TRIP."
          ::= { tripMIBGroups 6 }

      tripNotifObjectGroup OBJECT-GROUP
          OBJECTS {
              tripNotifApplIndex,
              tripNotifPeerAddrInetType,
              tripNotifPeerAddr,
              tripNotifPeerErrCode,
              tripNotifPeerErrSubcode
              }
          STATUS current
          DESCRIPTION
              "The collection of objects that specify information for
              TRIP notifications."
          ::= { tripMIBGroups 7 }

   END

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

Jiang/Walker/Zinman                                                 35
   of the User-based Security Model RFC 2574 [19] and the View-based
   Access Control Model RFC 2575 [17] is recommended.

   It is then a customer/user responsibility to ensure that the SNMP

Zinman/Walker/Jiang                                                  38
   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.

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.
   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

Jiang/Walker/Zinman                                                 36
     OBJECT IDENTIFIER. See [2] section 13.4
   o Changed definition of textual convention TripAddressFamily to
     OBJECT IDENTIFIER. See [2] section 13.3
   o Added object identifiers for tripSupportedProtocols and
     tripAddressFamilies.

Zinman/Walker/Jiang                                                  39
   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.
   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.
   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

9.   References
   1  Bradner, S., "The Internet Standards Process -- Revision 3", BCP
      9, RFC 2026, October 1996.

   2  Rosenberg, J., Salama, H. and Squire, M., "Telephony Routing over
      IP (TRIP)", draft-ietf-iptel-trip-07.txt, draft-ietf-iptel-trip-09.txt, work in progress.

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

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

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

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

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

Zinman/Walker/Jiang                                                  40
   8  Rose, M. and McCloghrie, K., "Concise MIB Definitions", STD 16,
      RFC 1212, March 1991.

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

   10 McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
      M. and Waldbusser, S., "Structure of Management Information
      Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.

   11 McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,

Jiang/Walker/Zinman                                                 37
      M. and Waldbusser, S., "Textual Conventions for SMIv2", STD 58,
      RFC 2579, April 1999.

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

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

   14 Case, J., McCloghrie, K., Rose, M. and Waldbusser, S.,
      "Introduction to Community-based SNMPv2", RFC 1901, January 1996.

   15 Case, J., McCloghrie, K., Rose, M. and Waldbusser, S., "Transport
      Mappings for Version 2 of the Simple Network Management Protocol
      (SNMPv2)", RFC 1906, January 1996.

   16 Case, J., McCloghrie, K., Rose, M. and Waldbusser, S., "Protocol
      Operations for Version 2 of the Simple Network Management
      Protocol (SNMPv2)", RFC 1905, January 1996.

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

   18 Freed, N. and Kille, S., "Network Services Monitoring MIB", RFC
      2788, March 2000.

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

   20 Rosenberg, J. and Salama, H., "Usage of TRIP in Gateways for
      Exporting Phone Routes", draft-rs-trip-gw-01.txt, work in
      progress.

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

Zinman/Walker/Jiang                                                  41
   22 Levi, D., Meyer, P., and Stewart B., "SNMP Applications",
      RFC 2573, April 1999.

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

10.  Author's Address Addresses

   David Zinman
   Email: dzinman@sympatico.ca

   Dave Walker
   SS8 Networks, Inc.

Jiang/Walker/Zinman                                                 38
   495 March Road, Suite #500
   Ottawa, ON  K2K 3G1
   Canada
   Phone: +1 613 592 2100
   Email: david@ss8.com

   Dave Walker drwalker@ss8.com

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

   Jianping Jiang
   SS8 Networks, Inc.
   55 Commerce Valley Drive West, Suite #510
   Thornhill, ON, L3T 7B9
   Canada
   phone: +1 905 889 5900
   Email: jianping@ss8.com

11.  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 in BCP-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.

12.  Full Copyright Statement

   Copyright (C) The Internet Society (2001).  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

Jiang/Walker/Zinman                                                 39
   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.

Jiang/Walker/Zinman                                                 40  Working Group

   IP Telephony (iptel) Working Group
   ==================================
   Chair:
     Jonathan Rosenberg <jdrosen@dynamicsoft.com>

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

Zinman/Walker/Jiang                                                  42