BGP4-MIB.mib

    BGP4-MIB DEFINITIONS ::= BEGIN

        IMPORTS
            MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
            IpAddress, Integer32, Counter32, Gauge32, mib-2
                FROM SNMPv2-SMI
            MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
                FROM SNMPv2-CONF;

        bgp MODULE-IDENTITY
            LAST-UPDATED "9902100000Z"
            ORGANIZATION "IETF IDR Working Group"
            CONTACT-INFO "E-mail:  idr@merit.net

                          Susan Hares  (Editor)
                          Merit Network
                          4251 Plymouth Road
                          Suite C
                          Ann Arbor, MI 48105-2785
                          Tel: +1 734 936 2095
                          Fax: +1 734 647 3185
                          E-mail: skh@merit.edu

                          Jeff Johnson (Editor)
                          RedBack Networks, Inc.
                          1389 Moffett Park Drive
                          Sunnyvale, CA  94089-1134
                          Tel: +1 408 548 3516
                          Fax: +1 408 548 3599
                          E-mail: jeff@redback.com"
            DESCRIPTION
                    "The MIB module for BGP-4."
            REVISION    "9902100000Z"
            DESCRIPTION
                    "Corrected duplicate OBJECT IDENTIFIER
                     assignment in the conformance information."
            REVISION    "9601080000Z"
            DESCRIPTION
                    "1) Fixed the definitions of the traps to
                     make them equivalent to their initial
                     definition in RFC 1269.
                     2) Added compliance and conformance info."
            ::= { mib-2 15 }

        bgpVersion OBJECT-TYPE
            SYNTAX     OCTET STRING (SIZE (1..255))
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "Vector of supported BGP protocol version
                    numbers.  Each peer negotiates the version
                    from this vector.  Versions are identified
                    via the string of bits contained within this
                    object.  The first octet contains bits 0 to
                    7, the second octet contains bits 8 to 15,
                    and so on, with the most significant bit
                    referring to the lowest bit number in the
                    octet (e.g., the MSB of the first octet
                    refers to bit 0).  If a bit, i, is present
                    and set, then the version (i+1) of the BGP
                    is supported."
            ::= { bgp 1 }

        bgpLocalAs OBJECT-TYPE
            SYNTAX     INTEGER (0..65535)
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The local autonomous system number."
            ::= { bgp 2 }



        -- BGP Peer table.  This table contains, one entry per BGP
        -- peer, information about the BGP peer.

        bgpPeerTable OBJECT-TYPE
            SYNTAX     SEQUENCE OF BgpPeerEntry
            MAX-ACCESS not-accessible
            STATUS     current
            DESCRIPTION
                    "BGP peer table.  This table contains,
                    one entry per BGP peer, information about the
                    connections with BGP peers."
            ::= { bgp 3 }

        bgpPeerEntry OBJECT-TYPE
            SYNTAX     BgpPeerEntry
            MAX-ACCESS not-accessible
            STATUS     current
            DESCRIPTION
                    "Entry containing information about the
                    connection with a BGP peer."
            INDEX { bgpPeerRemoteAddr }
            ::= { bgpPeerTable 1 }

        BgpPeerEntry ::= SEQUENCE {
                bgpPeerIdentifier
                    IpAddress,
                bgpPeerState
                    INTEGER,
                bgpPeerAdminStatus
                    INTEGER,
                bgpPeerNegotiatedVersion
                    Integer32,
                bgpPeerLocalAddr
                    IpAddress,
                bgpPeerLocalPort
                    INTEGER,
                bgpPeerRemoteAddr
                    IpAddress,
                bgpPeerRemotePort
                    INTEGER,
                bgpPeerRemoteAs
                    INTEGER,
                bgpPeerInUpdates
                    Counter32,
                bgpPeerOutUpdates
                    Counter32,
                bgpPeerInTotalMessages
                    Counter32,
                bgpPeerOutTotalMessages
                    Counter32,
                bgpPeerLastError
                    OCTET STRING,
                bgpPeerFsmEstablishedTransitions
                    Counter32,
                bgpPeerFsmEstablishedTime
                    Gauge32,
                bgpPeerConnectRetryInterval
                    INTEGER,
                bgpPeerHoldTime
                    INTEGER,
                bgpPeerKeepAlive
                    INTEGER,
                bgpPeerHoldTimeConfigured
                    INTEGER,
                bgpPeerKeepAliveConfigured
                    INTEGER,
                bgpPeerMinASOriginationInterval
                    INTEGER,
                bgpPeerMinRouteAdvertisementInterval
                    INTEGER,
                bgpPeerInUpdateElapsedTime
                    Gauge32
                }

        bgpPeerIdentifier OBJECT-TYPE
            SYNTAX     IpAddress
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The BGP Identifier of this entry's BGP peer."
            ::= { bgpPeerEntry 1 }

        bgpPeerState OBJECT-TYPE
            SYNTAX     INTEGER {
                                idle(1),
                                connect(2),
                                active(3),
                                opensent(4),
                                openconfirm(5),
                                established(6)
                       }
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The BGP peer connection state."
            ::= { bgpPeerEntry 2 }

        bgpPeerAdminStatus OBJECT-TYPE
            SYNTAX     INTEGER {
                                stop(1),
                                start(2)
                       }
            MAX-ACCESS read-write
            STATUS     current
            DESCRIPTION
                    "The desired state of the BGP connection.  A
                    transition from 'stop' to 'start' will cause
                    the BGP Start Event to be generated.  A
                    transition from 'start' to 'stop' will cause
                    the BGP Stop Event to be generated.  This
                    parameter can be used to restart BGP peer
                    connections.  Care should be used in providing
                    write access to this object without adequate
                    authentication."
            ::= { bgpPeerEntry 3 }

        bgpPeerNegotiatedVersion OBJECT-TYPE
            SYNTAX     Integer32
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The negotiated version of BGP running between
                    the two peers."
            ::= { bgpPeerEntry 4 }

        bgpPeerLocalAddr OBJECT-TYPE
            SYNTAX     IpAddress
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The local IP address of this entry's BGP
                    connection."
            ::= { bgpPeerEntry 5 }

        bgpPeerLocalPort OBJECT-TYPE
            SYNTAX     INTEGER (0..65535)
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The local port for the TCP connection between
                    the BGP peers."
            ::= { bgpPeerEntry 6 }

        bgpPeerRemoteAddr OBJECT-TYPE
            SYNTAX     IpAddress
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The remote IP address of this entry's BGP
                    peer."
            ::= { bgpPeerEntry 7 }

        bgpPeerRemotePort OBJECT-TYPE
            SYNTAX     INTEGER (0..65535)
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The remote port for the TCP connection between
                    the BGP peers.  Note that the objects
                    bgpPeerLocalAddr, bgpPeerLocalPort,
                    bgpPeerRemoteAddr and bgpPeerRemotePort
                    provide the appropriate reference to the
                    standard MIB TCP connection table."
            ::= { bgpPeerEntry 8 }

        bgpPeerRemoteAs OBJECT-TYPE
            SYNTAX     INTEGER (0..65535)
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The remote autonomous system number."
            ::= { bgpPeerEntry 9 }

        bgpPeerInUpdates OBJECT-TYPE
            SYNTAX     Counter32
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The number of BGP UPDATE messages received on
                    this connection.  This object should be
                    initialized to zero (0) when the connection is
                    established."
            ::= { bgpPeerEntry 10 }

        bgpPeerOutUpdates OBJECT-TYPE
            SYNTAX     Counter32
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The number of BGP UPDATE messages transmitted
                    on this connection.  This object should be
                    initialized to zero (0) when the connection is
                    established."
            ::= { bgpPeerEntry 11 }

        bgpPeerInTotalMessages OBJECT-TYPE
            SYNTAX     Counter32
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The total number of messages received from the
                    remote peer on this connection.  This object
                    should be initialized to zero when the
                    connection is established."
            ::= { bgpPeerEntry 12 }

        bgpPeerOutTotalMessages OBJECT-TYPE
            SYNTAX     Counter32
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The total number of messages transmitted to
                    the remote peer on this connection.  This object
                    should be initialized to zero when the
                    connection is established."
            ::= { bgpPeerEntry 13 }

        bgpPeerLastError OBJECT-TYPE
            SYNTAX     OCTET STRING (SIZE (2))
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The last error code and subcode seen by this
                    peer on this connection.  If no error has
                    occurred, this field is zero.  Otherwise, the
                    first byte of this two byte OCTET STRING
                    contains the error code, and the second byte
                    contains the subcode."
            ::= { bgpPeerEntry 14 }

        bgpPeerFsmEstablishedTransitions OBJECT-TYPE
            SYNTAX     Counter32
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The total number of times the BGP FSM
                    transitioned into the established state."
            ::= { bgpPeerEntry 15 }

        bgpPeerFsmEstablishedTime OBJECT-TYPE
            SYNTAX     Gauge32
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "This timer indicates how long (in seconds) this
                    peer has been in the Established state or how long
                    since this peer was last in the Established state.
                    It is set to zero when a new peer is configured or
                    the router is booted."
            ::= { bgpPeerEntry 16 }

        bgpPeerConnectRetryInterval OBJECT-TYPE
            SYNTAX     INTEGER (1..65535)
            MAX-ACCESS read-write
            STATUS     current
            DESCRIPTION
                    "Time interval in seconds for the ConnectRetry
                    timer.  The suggested value for this timer is
                    120 seconds."
            ::= { bgpPeerEntry 17 }

        bgpPeerHoldTime OBJECT-TYPE
            SYNTAX     INTEGER  ( 0 | 3..65535 )
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "Time interval in seconds for the Hold Timer
                    established with the peer.  The value of this
                    object is calculated by this BGP speaker by
                    using the smaller of the value in
                    bgpPeerHoldTimeConfigured and the Hold Time
                    received in the OPEN message.  This value
                    must be at lease three seconds if it is not
                    zero (0) in which case the Hold Timer has
                    not been established with the peer, or, the
                    value of bgpPeerHoldTimeConfigured is zero (0)."
            ::= { bgpPeerEntry 18 }

        bgpPeerKeepAlive OBJECT-TYPE
            SYNTAX     INTEGER ( 0 | 1..21845 )
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "Time interval in seconds for the KeepAlive
                    timer established with the peer.  The value of
                    this object is calculated by this BGP speaker
                    such that, when compared with bgpPeerHoldTime,
                    it has the same proportion as what
                    bgpPeerKeepAliveConfigured has when compared
                    with bgpPeerHoldTimeConfigured.  If the value
                    of this object is zero (0), it indicates that
                    the KeepAlive timer has not been established
                    with the peer, or, the value of
                    bgpPeerKeepAliveConfigured is zero (0)."
            ::= { bgpPeerEntry 19 }

        bgpPeerHoldTimeConfigured OBJECT-TYPE
            SYNTAX     INTEGER ( 0 | 3..65535 )
            MAX-ACCESS read-write
            STATUS     current
            DESCRIPTION
                    "Time interval in seconds for the Hold Time
                    configured for this BGP speaker with this peer.
                    This value is placed in an OPEN message sent to
                    this peer by this BGP speaker, and is compared
                    with the Hold Time field in an OPEN message
                    received from the peer when determining the Hold
                    Time (bgpPeerHoldTime) with the peer.  This value
                    must not be less than three seconds if it is not
                    zero (0) in which case the Hold Time is NOT to be
                    established with the peer.  The suggested value for
                    this timer is 90 seconds."
            ::= { bgpPeerEntry 20 }

        bgpPeerKeepAliveConfigured OBJECT-TYPE
            SYNTAX     INTEGER ( 0 | 1..21845 )
            MAX-ACCESS read-write
            STATUS     current
            DESCRIPTION
                    "Time interval in seconds for the KeepAlive timer
                    configured for this BGP speaker with this peer.
                    The value of this object will only determine the
                    KEEPALIVE messages' frequency relative to the value
                    specified in bgpPeerHoldTimeConfigured; the actual
                    time interval for the KEEPALIVE messages is
                    indicated by bgpPeerKeepAlive.  A reasonable
                    maximum value for this timer would be configured to
                    be one third of that of bgpPeerHoldTimeConfigured.
                    If the value of this object is zero (0), no
                    periodical KEEPALIVE messages are sent to the peer
                    after the BGP connection has been established.  The
                    suggested value for this timer is 30 seconds."
            ::= { bgpPeerEntry 21 }

        bgpPeerMinASOriginationInterval OBJECT-TYPE
            SYNTAX     INTEGER (1..65535)
            MAX-ACCESS read-write
            STATUS     current
            DESCRIPTION
                    "Time interval in seconds for the
                    MinASOriginationInterval timer.
                    The suggested value for this timer is 15 seconds."
            ::= { bgpPeerEntry 22 }

        bgpPeerMinRouteAdvertisementInterval OBJECT-TYPE
            SYNTAX     INTEGER (1..65535)
            MAX-ACCESS read-write
            STATUS     current
            DESCRIPTION
                    "Time interval in seconds for the
                    MinRouteAdvertisementInterval timer.
                    The suggested value for this timer is 30 seconds."
            ::= { bgpPeerEntry 23 }

        bgpPeerInUpdateElapsedTime OBJECT-TYPE
            SYNTAX     Gauge32
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "Elapsed time in seconds since the last BGP
                    UPDATE message was received from the peer.
                    Each time bgpPeerInUpdates is incremented,
                    the value of this object is set to zero (0)."
            ::= { bgpPeerEntry 24 }



        bgpIdentifier OBJECT-TYPE
            SYNTAX     IpAddress
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The BGP Identifier of local system."
            ::= { bgp 4 }



        -- Received Path Attribute Table.  This table contains,
        -- one entry per path to a network, path attributes
        -- received from all peers running BGP version 3 or less.
        -- This table is obsolete, having been replaced in
        -- functionality with the bgp4PathAttrTable.

        bgpRcvdPathAttrTable OBJECT-TYPE
            SYNTAX     SEQUENCE OF BgpPathAttrEntry
            MAX-ACCESS not-accessible
            STATUS     obsolete
            DESCRIPTION
                    "The BGP Received Path Attribute Table contains
                    information about paths to destination networks
                    received from all peers running BGP version 3 or
                    less."
            ::= { bgp 5 }

        bgpPathAttrEntry OBJECT-TYPE
            SYNTAX     BgpPathAttrEntry
            MAX-ACCESS not-accessible
            STATUS     obsolete
            DESCRIPTION
                    "Information about a path to a network."
            INDEX { bgpPathAttrDestNetwork,
                    bgpPathAttrPeer        }
            ::= { bgpRcvdPathAttrTable 1 }

        BgpPathAttrEntry ::= SEQUENCE {
            bgpPathAttrPeer
                 IpAddress,
            bgpPathAttrDestNetwork
                 IpAddress,
            bgpPathAttrOrigin
                 INTEGER,
            bgpPathAttrASPath
                 OCTET STRING,
            bgpPathAttrNextHop
                 IpAddress,
            bgpPathAttrInterASMetric
                 Integer32
        }

        bgpPathAttrPeer OBJECT-TYPE
            SYNTAX     IpAddress
            MAX-ACCESS read-only
            STATUS     obsolete
            DESCRIPTION
                    "The IP address of the peer where the path
                    information was learned."
            ::= { bgpPathAttrEntry 1 }

        bgpPathAttrDestNetwork OBJECT-TYPE
            SYNTAX     IpAddress
            MAX-ACCESS read-only
            STATUS     obsolete
            DESCRIPTION
                    "The address of the destination network."
            ::= { bgpPathAttrEntry 2 }

        bgpPathAttrOrigin OBJECT-TYPE
            SYNTAX     INTEGER {
                           igp(1),-- networks are interior
                           egp(2),-- networks learned via EGP
                           incomplete(3) -- undetermined
                       }
            MAX-ACCESS read-only
            STATUS     obsolete
            DESCRIPTION
                 "The ultimate origin of the path information."
            ::= { bgpPathAttrEntry 3 }

        bgpPathAttrASPath OBJECT-TYPE
            SYNTAX     OCTET STRING (SIZE (2..255))
            MAX-ACCESS read-only
            STATUS     obsolete
            DESCRIPTION
                    "The set of ASs that must be traversed to reach
                    the network.  This object is probably best
                    represented as SEQUENCE OF INTEGER.  For SMI
                    compatibility, though, it is represented as
                    OCTET STRING.  Each AS is represented as a pair
                    of octets according to the following algorithm:

                        first-byte-of-pair = ASNumber / 256;
                        second-byte-of-pair = ASNumber & 255;"
            ::= { bgpPathAttrEntry 4 }

        bgpPathAttrNextHop OBJECT-TYPE
            SYNTAX     IpAddress
            MAX-ACCESS read-only
            STATUS     obsolete
            DESCRIPTION
                    "The address of the border router that should
                    be used for the destination network."
            ::= { bgpPathAttrEntry 5 }

        bgpPathAttrInterASMetric OBJECT-TYPE
            SYNTAX     Integer32
            MAX-ACCESS read-only
            STATUS     obsolete
            DESCRIPTION
                    "The optional inter-AS metric.  If this
                    attribute has not been provided for this route,
                    the value for this object is 0."
            ::= { bgpPathAttrEntry 6 }



        -- BGP-4 Received Path Attribute Table.  This table contains,
        -- one entry per path to a network, path attributes
        -- received from all peers running BGP-4.

        bgp4PathAttrTable OBJECT-TYPE
            SYNTAX     SEQUENCE OF Bgp4PathAttrEntry
            MAX-ACCESS not-accessible
            STATUS     current
            DESCRIPTION
                    "The BGP-4 Received Path Attribute Table contains
                    information about paths to destination networks
                    received from all BGP4 peers."
            ::= { bgp 6 }

        bgp4PathAttrEntry OBJECT-TYPE
            SYNTAX     Bgp4PathAttrEntry
            MAX-ACCESS not-accessible
            STATUS     current
            DESCRIPTION
                    "Information about a path to a network."
            INDEX { bgp4PathAttrIpAddrPrefix,
                    bgp4PathAttrIpAddrPrefixLen,
                    bgp4PathAttrPeer            }
            ::= { bgp4PathAttrTable 1 }

        Bgp4PathAttrEntry ::= SEQUENCE {
            bgp4PathAttrPeer
                 IpAddress,
            bgp4PathAttrIpAddrPrefixLen
                 INTEGER,
            bgp4PathAttrIpAddrPrefix
                 IpAddress,
            bgp4PathAttrOrigin
                 INTEGER,
            bgp4PathAttrASPathSegment
                 OCTET STRING,
            bgp4PathAttrNextHop
                 IpAddress,
            bgp4PathAttrMultiExitDisc
                 INTEGER,
            bgp4PathAttrLocalPref
                 INTEGER,
            bgp4PathAttrAtomicAggregate
                 INTEGER,
            bgp4PathAttrAggregatorAS
                 INTEGER,
            bgp4PathAttrAggregatorAddr
                 IpAddress,
            bgp4PathAttrCalcLocalPref
                 INTEGER,
            bgp4PathAttrBest
                 INTEGER,
            bgp4PathAttrUnknown
                 OCTET STRING
        }

        bgp4PathAttrPeer OBJECT-TYPE
            SYNTAX     IpAddress
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The IP address of the peer where the path
                    information was learned."
            ::= { bgp4PathAttrEntry 1 }
        bgp4PathAttrIpAddrPrefixLen OBJECT-TYPE
            SYNTAX     INTEGER (0..32)
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "Length in bits of the IP address prefix in the
                    Network Layer Reachability Information field."
            ::= { bgp4PathAttrEntry 2 }

        bgp4PathAttrIpAddrPrefix OBJECT-TYPE
            SYNTAX     IpAddress
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "An IP address prefix in the Network Layer
                    Reachability Information field.  This object
                    is an IP address containing the prefix with
                    length specified by bgp4PathAttrIpAddrPrefixLen.
                    Any bits beyond the length specified by
                    bgp4PathAttrIpAddrPrefixLen are zeroed."
            ::= { bgp4PathAttrEntry 3 }

        bgp4PathAttrOrigin OBJECT-TYPE
            SYNTAX     INTEGER {
                                 igp(1),-- networks are interior
                                 egp(2),-- networks learned via EGP
                                 incomplete(3) -- undetermined
                               }
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The ultimate origin of the path information."
            ::= { bgp4PathAttrEntry 4 }

        bgp4PathAttrASPathSegment OBJECT-TYPE
            SYNTAX     OCTET STRING (SIZE (2..255))
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The sequence of AS path segments.  Each AS
                    path segment is represented by a triple
                    <type, length, value>.

                    The type is a 1-octet field which has two
                    possible values:
                         1      AS_SET: unordered set of ASs a
                                     route in the UPDATE message
                                     has traversed
                         2      AS_SEQUENCE: ordered set of ASs
                                     a route in the UPDATE message
                                     has traversed.

                    The length is a 1-octet field containing the
                    number of ASs in the value field.

                    The value field contains one or more AS
                    numbers, each AS is represented in the octet
                    string as a pair of octets according to the
                    following algorithm:

                        first-byte-of-pair = ASNumber / 256;
                        second-byte-of-pair = ASNumber & 255;"
            ::= { bgp4PathAttrEntry 5 }

        bgp4PathAttrNextHop OBJECT-TYPE
            SYNTAX     IpAddress
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The address of the border router that should
                    be used for the destination network."
            ::= { bgp4PathAttrEntry 6 }

        bgp4PathAttrMultiExitDisc OBJECT-TYPE
            SYNTAX     INTEGER (-1..2147483647)
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "This metric is used to discriminate between
                    multiple exit points to an adjacent autonomous
                    system.  A value of -1 indicates the absence of
                    this attribute."
            ::= { bgp4PathAttrEntry 7 }

        bgp4PathAttrLocalPref OBJECT-TYPE
            SYNTAX     INTEGER (-1..2147483647)
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The originating BGP4 speaker's degree of
                    preference for an advertised route.  A value of
                    -1 indicates the absence of this attribute."
            ::= { bgp4PathAttrEntry 8 }

        bgp4PathAttrAtomicAggregate OBJECT-TYPE
            SYNTAX     INTEGER {
                           lessSpecificRrouteNotSelected(1),
                           lessSpecificRouteSelected(2)
                       }
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "Whether or not a system has selected
                    a less specific route without selecting a
                    more specific route."
            ::= { bgp4PathAttrEntry 9 }

        bgp4PathAttrAggregatorAS OBJECT-TYPE
            SYNTAX     INTEGER (0..65535)
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The AS number of the last BGP4 speaker that
                    performed route aggregation.  A value of zero (0)
                    indicates the absence of this attribute."
            ::= { bgp4PathAttrEntry 10 }

        bgp4PathAttrAggregatorAddr OBJECT-TYPE
            SYNTAX     IpAddress
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The IP address of the last BGP4 speaker that
                     performed route aggregation.  A value of
                     0.0.0.0 indicates the absence of this attribute."
            ::= { bgp4PathAttrEntry 11 }

        bgp4PathAttrCalcLocalPref OBJECT-TYPE
            SYNTAX     INTEGER (-1..2147483647)
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "The degree of preference calculated by the
                    receiving BGP4 speaker for an advertised route.
                    A value of -1 indicates the absence of this
                    attribute."
            ::= { bgp4PathAttrEntry 12 }

        bgp4PathAttrBest OBJECT-TYPE
            SYNTAX     INTEGER {
                           false(1),-- not chosen as best route
                           true(2) -- chosen as best route
                       }
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "An indication of whether or not this route
                    was chosen as the best BGP4 route."
            ::= { bgp4PathAttrEntry 13 }

        bgp4PathAttrUnknown OBJECT-TYPE
            SYNTAX     OCTET STRING (SIZE(0..255))
            MAX-ACCESS read-only
            STATUS     current
            DESCRIPTION
                    "One or more path attributes not understood
                     by this BGP4 speaker.  Size zero (0) indicates
                     the absence of such attribute(s).  Octets
                     beyond the maximum size, if any, are not
                     recorded by this object."
            ::= { bgp4PathAttrEntry 14 }


        -- Traps.

        -- note that in RFC 1657, bgpTraps was incorrectly
        -- assigned a value of { bgp 7 }, and each of the
        -- traps had the bgpPeerRemoteAddr object inappropriately
        -- removed from their OBJECTS clause.  The following
        -- definitions restore the semantics of the traps as
        -- they were initially defined in RFC 1269.

        -- { bgp 7 } is unused

        bgpTraps          OBJECT IDENTIFIER ::= { bgp 0 }

        bgpEstablished NOTIFICATION-TYPE
            OBJECTS { bgpPeerRemoteAddr,
                      bgpPeerLastError,
                      bgpPeerState      }
            STATUS  current
            DESCRIPTION
                    "The BGP Established event is generated when
                    the BGP FSM enters the ESTABLISHED state."
            ::= { bgpTraps 1 }

        bgpBackwardTransition NOTIFICATION-TYPE
            OBJECTS { bgpPeerRemoteAddr,
                      bgpPeerLastError,
                      bgpPeerState      }
            STATUS  current
            DESCRIPTION
                    "The BGPBackwardTransition Event is generated
                    when the BGP FSM moves from a higher numbered
                    state to a lower numbered state."
            ::= { bgpTraps 2 }

        -- conformance information

        bgpMIBConformance OBJECT IDENTIFIER ::= { bgp 8 }
        bgpMIBCompliances OBJECT IDENTIFIER ::= { bgpMIBConformance 1 }
        bgpMIBGroups      OBJECT IDENTIFIER ::= { bgpMIBConformance 2 }

        -- compliance statements

        bgpMIBCompliance MODULE-COMPLIANCE
            STATUS  current
            DESCRIPTION
                    "The compliance statement for entities which
                     implement the BGP4 mib."
            MODULE  -- this module
                MANDATORY-GROUPS { bgp4MIBGlobalsGroup,
                                   bgp4MIBPeerGroup,
                                   bgp4MIBPathAttrGroup,
                                   bgp4MIBNotificationGroup }
            ::= { bgpMIBCompliances 1 }

        -- units of conformance

        bgp4MIBGlobalsGroup OBJECT-GROUP
            OBJECTS { bgpVersion,
                      bgpLocalAs,
                      bgpIdentifier }
            STATUS  current
            DESCRIPTION
                    "A collection of objects providing information
                     on global BGP state."
            ::= { bgpMIBGroups 1 }

        bgp4MIBPeerGroup OBJECT-GROUP
            OBJECTS { bgpPeerIdentifier,
                      bgpPeerState,
                      bgpPeerAdminStatus,
                      bgpPeerNegotiatedVersion,
                      bgpPeerLocalAddr,
                      bgpPeerLocalPort,
                      bgpPeerRemoteAddr,
                      bgpPeerRemotePort,
                      bgpPeerRemoteAs,
                      bgpPeerInUpdates,
                      bgpPeerOutUpdates,
                      bgpPeerInTotalMessages,
                      bgpPeerOutTotalMessages,
                      bgpPeerLastError,
                      bgpPeerFsmEstablishedTransitions,
                      bgpPeerFsmEstablishedTime,
                      bgpPeerConnectRetryInterval,
                      bgpPeerHoldTime,
                      bgpPeerKeepAlive,
                      bgpPeerHoldTimeConfigured,
                      bgpPeerKeepAliveConfigured,
                      bgpPeerMinASOriginationInterval,
                      bgpPeerMinRouteAdvertisementInterval,
                      bgpPeerInUpdateElapsedTime }
            STATUS  current
            DESCRIPTION
                    "A collection of objects for managing
                     BGP peers."
            ::= { bgpMIBGroups 2 }

        bgp4MIBRcvdPathAttrGroup OBJECT-GROUP
            OBJECTS { bgpPathAttrPeer,
                      bgpPathAttrDestNetwork,
                      bgpPathAttrOrigin,
                      bgpPathAttrASPath,
                      bgpPathAttrNextHop,
                      bgpPathAttrInterASMetric }
            STATUS  obsolete
            DESCRIPTION
                    "A collection of objects for managing BGP
                     path entries.

                     This conformance group is obsolete,
                     replaced by bgp4MIBPathAttrGroup."
            ::= { bgpMIBGroups 3 }

        bgp4MIBPathAttrGroup OBJECT-GROUP
            OBJECTS { bgp4PathAttrPeer,
                      bgp4PathAttrIpAddrPrefixLen,
                      bgp4PathAttrIpAddrPrefix,
                      bgp4PathAttrOrigin,
                      bgp4PathAttrASPathSegment,
                      bgp4PathAttrNextHop,
                      bgp4PathAttrMultiExitDisc,
                      bgp4PathAttrLocalPref,
                      bgp4PathAttrAtomicAggregate,
                      bgp4PathAttrAggregatorAS,
                      bgp4PathAttrAggregatorAddr,
                      bgp4PathAttrCalcLocalPref,
                      bgp4PathAttrBest,
                      bgp4PathAttrUnknown }
            STATUS  current
            DESCRIPTION
                    "A collection of objects for managing
                     BGP path entries."
            ::= { bgpMIBGroups 4 }

        bgp4MIBNotificationGroup NOTIFICATION-GROUP
            NOTIFICATIONS { bgpEstablished,
                            bgpBackwardTransition }
            STATUS  current
            DESCRIPTION
                    "A collection of notifications for signaling
                    changes in BGP peer relationships."
            ::= { bgpMIBGroups 5 }

    END