HTTP/1.1 200 OK Date: Tue, 09 Apr 2002 03:10:11 GMT Server: Apache/1.3.20 (Unix) Last-Modified: Wed, 15 Nov 1995 23:00:00 GMT ETag: "2edbbf-b0da-30aa70f0" Accept-Ranges: bytes Content-Length: 45274 Connection: close Content-Type: text/plain Network Working Group S. Willis INTERNET DRAFT J. Burruss BayNetworks J. Chu (Editor) IBM Corp. November 1995 Definitions of Managed Objects for the Fourth Version of Border Gateway Protocol (BGP-4) Status of this Memo This document is an Internet Draft. 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. Internet Drafts may be updated, replaced, or obsoleted by other documents at any time. It is not appropriate to use Internet Drafts as reference material or to cite them other than as a "working draft" or "work in progress." Please check the I-D abstract listing contained in each Internet Draft directory to learn the current status of this or any other Internet Draft. This memo is an extension to the SNMP MIB. It specifies an IAB standards track protocol for the Internet community, and requests discussion and suggestions for improvements. The origin of this memo is from RFC 1269 "Definitions of Managed Objects for the Board Gateway Protocol (Version 3)" written by the first two authors of this memo. Distribution of this memo is unlimited. Please forward comments to bgp@ans.net. 1. Introduction This memo defines an experimental portion of the Management Information Base (MIB) for use with network management protocols in the Internet Expiration Date May 1996 [Page 1]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 community. In particular, it describes managed objects used for managing the Border Gateway Protocol Version 4 or lower [1, 2]. 2. The SNMPv2 Network Management Framework The SNMPv2 Network Management Framework consists of four major components. They are: RFC 1442 which defines the SMI, the mechanisms used for describing and naming objects for the purpose of management. RFC 1213 defines MIB-II, the core set of managed objects for the Internet suite of protocols. RFC 1445 which defines the administrative and other architectural aspects of the framework. RFC 1448 which defines the protocol used for network access to managed objects. The Framework permits new objects to be defined for the purpose of experimentation and evaluation. 3. Object Definitions Managed objects are accessed via a virtual information store, termed the Management Information Base or MIB. Objects in the MIB are defined using the subset of Abstract Syntax Notation One (ASN.1) defined in the SMI. In particular, each object type is named by an OBJECT IDENTIFIER, an administratively assigned name. The object type together with an object instance serves to uniquely identify a specific instantiation of the object. For human convenience, we often use a textual string, termed the descriptor, to refer to the object type. 4. Overview These objects are used to control and manage a BGP-4 implementation. Apart from a few system-wide scalar objects, this MIB is broken into three tables: the BGP Peer Table, the BGP Received Path Attribute Table, and the BGP-4 Received Path Attribute Table. The BGP Peer Table contains information about state and current activity of connections Expiration Date May 1996 [Page 2]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 with the BGP peers. The Received Path Attribute Table contains path attributes received from all peers running BGP version 3 or less. The BGP-4 Received Path Attribute Table contains path attributes received from all BGP-4 peers. The actual attributes used in determining a route are a subset of the received attribute tables after local routing policy has been applied. 5. Definitions BGP4-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE, IpAddress, Integer32, Counter32, Gauge32 FROM SNMPv2-SMI mib-2 FROM RFC1213-MIB; bgp MODULE-IDENTITY LAST-UPDATED "9511090000Z" ORGANIZATION "IETF BGP Working Group" CONTACT-INFO " John Chu (Editor) Postal: IBM Corp. P.O.Box 704 Yorktown Heights, NY 10598 US Tel: +1 914 784 7839 Fax: +1 914 784 6205 E-mail: jychu@watson.ibm.com" DESCRIPTION "The MIB module for BGP-4." ::= { 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, Expiration Date May 1996 [Page 3]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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, Expiration Date May 1996 [Page 4]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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 Expiration Date May 1996 [Page 5]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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 Expiration Date May 1996 [Page 6]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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 Expiration Date May 1996 [Page 7]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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 Expiration Date May 1996 [Page 8]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 "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 Expiration Date May 1996 [Page 9]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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 Expiration Date May 1996 [Page 10]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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 maximu m 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 } Expiration Date May 1996 [Page 11]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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 deprecated. 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 Expiration Date May 1996 [Page 12]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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 } Expiration Date May 1996 [Page 13]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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 Expiration Date May 1996 [Page 14]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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 } Expiration Date May 1996 [Page 15]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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 . 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 Expiration Date May 1996 [Page 16]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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." Expiration Date May 1996 [Page 17]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 ::= { 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 Expiration Date May 1996 [Page 18]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 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. bgpTraps OBJECT IDENTIFIER ::= { bgp 7 } bgpEstablished NOTIFICATION-TYPE OBJECTS { 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 { 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 } END 6. Acknowledgements We would like to acknowledge the assistance of all the members of the Interconnectivity Working Group, and particularly the following individuals: Yakov Rekhter, cisco Systems Rob Coltun, Fore Guy Almes, ANS Jeff Honig, Cornell Theory Center Marshall T. Rose, Dover Beach Consulting, Inc. Expiration Date May 1996 [Page 19]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 Dennis Ferguson, Ipsilon Mike Mathis, PSC John Krawczyk, BayNetworks Curtis Villamizar, ANS Dave LeRoy, Pencom Systems Paul Traina, cisco Systems Andrew Partan, UUNET Robert Snyder, cisco Systems Dimitry Haskin, BayNetworks Peder Chr Norgaard, Telebit Communications A/S Joel Halpern, NewBridge 7. References [1] Rekhter, Y., Li, T., "A Border Gateway Protocol 4 (BGP-4)", RFC1771, March 1995 [2] Rekhter, Y., Gross, P., "Application of the Border Gateway Protocol in the Internet", RFC1772, March 1995 8. Security Considerations Security issues are not discussed in this memo. Authors' Address Steven Willis BayNetworks 15 Crosby Drive Bedford, MA 01730 Phone: (617) 275-2400 Email: swillis@baynetworks.com John Burruss BayNetworks 15 Crosby Drive Bedford, MA 01730 Phone: (617) 275-2400 Email: jburruss@baynetworks.com Expiration Date May 1996 [Page 20]FORMFEED INTERNET DRAFT BGP-4 MIB November 9, 1995 John Chu IBM Corp. P.O.Box 704 Yorktown Heights, NY 10598 Phone: (914) 784-7839 Email: jychu@watson.ibm.com Expiration Date May 1996 [Page 21]FORMFEED