MIB MODULE DETAILS BGP4-MIB

Registration: 1.3.6.1.2.1.15.1 Access: read-only Reference: None 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.

bgpLocalAs

Registration: 1.3.6.1.2.1.15.2 Access: read-only Reference: None Description:

The local autonomous system number.

bgpPeerIdentifier

Registration: 1.3.6.1.2.1.15.3.1.1 Access: read-only Reference: None Description:

The BGP Identifier of this entry's BGP peer.

bgpPeerState

Registration: 1.3.6.1.2.1.15.3.1.2 Access: read-only Reference: None Description:

The BGP peer connection state.

bgpPeerAdminStatus

Registration: 1.3.6.1.2.1.15.3.1.3 Access: read-write Reference: None 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.

bgpPeerNegotiatedVersion

Registration: 1.3.6.1.2.1.15.3.1.4 Access: read-only Reference: None Description:

The negotiated version of BGP running between
the two peers.

bgpPeerLocalAddr

Registration: 1.3.6.1.2.1.15.3.1.5 Access: read-only Reference: None Description:

The local IP address of this entry's BGP
connection.

bgpPeerLocalPort

Registration: 1.3.6.1.2.1.15.3.1.6 Access: read-only Reference: None Description:

The local port for the TCP connection between
the BGP peers.

bgpPeerRemoteAddr

Registration: 1.3.6.1.2.1.15.3.1.7 Access: read-only Reference: None Description:

The remote IP address of this entry's BGP
peer.

bgpPeerRemotePort

Registration: 1.3.6.1.2.1.15.3.1.8 Access: read-only Reference: None 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.

bgpPeerRemoteAs

Registration: 1.3.6.1.2.1.15.3.1.9 Access: read-only Reference: None Description:

The remote autonomous system number.

bgpPeerInUpdates

Registration: 1.3.6.1.2.1.15.3.1.10 Access: read-only Reference: None Description:

The number of BGP UPDATE messages received on
this connection. This object should be
initialized to zero (0) when the connection is
established.

bgpPeerOutUpdates

Registration: 1.3.6.1.2.1.15.3.1.11 Access: read-only Reference: None Description:

The number of BGP UPDATE messages transmitted
on this connection. This object should be
initialized to zero (0) when the connection is
established.

bgpPeerInTotalMessages

Registration: 1.3.6.1.2.1.15.3.1.12 Access: read-only Reference: None 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.

bgpPeerOutTotalMessages

Registration: 1.3.6.1.2.1.15.3.1.13 Access: read-only Reference: None 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.

bgpPeerLastError

Registration: 1.3.6.1.2.1.15.3.1.14 Access: read-only Reference: None 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.

bgpPeerFsmEstablishedTransitions

Registration: 1.3.6.1.2.1.15.3.1.15 Access: read-only Reference: None Description:

The total number of times the BGP FSM
transitioned into the established state.

bgpPeerFsmEstablishedTime

Registration: 1.3.6.1.2.1.15.3.1.16 Access: read-only Reference: None 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.

bgpPeerConnectRetryInterval

Registration: 1.3.6.1.2.1.15.3.1.17 Access: read-write Reference: None Description:

Time interval in seconds for the ConnectRetry
timer. The suggested value for this timer is
120 seconds.

bgpPeerHoldTime

Registration: 1.3.6.1.2.1.15.3.1.18 Access: read-only Reference: None 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).

bgpPeerKeepAlive

Registration: 1.3.6.1.2.1.15.3.1.19 Access: read-only Reference: None 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).

bgpPeerHoldTimeConfigured

Registration: 1.3.6.1.2.1.15.3.1.20 Access: read-write Reference: None 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.

bgpPeerKeepAliveConfigured

Registration: 1.3.6.1.2.1.15.3.1.21 Access: read-write Reference: None 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.

bgpPeerMinASOriginationInterval

Registration: 1.3.6.1.2.1.15.3.1.22 Access: read-write Reference: None Description:

Time interval in seconds for the
MinASOriginationInterval timer.
The suggested value for this timer is 15 seconds.

bgpPeerMinRouteAdvertisementInterval

Registration: 1.3.6.1.2.1.15.3.1.23 Access: read-write Reference: None Description:

Time interval in seconds for the
MinRouteAdvertisementInterval timer.
The suggested value for this timer is 30 seconds.

bgpPeerInUpdateElapsedTime

Registration: 1.3.6.1.2.1.15.3.1.24 Access: read-only Reference: None 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).

bgpIdentifier

Registration: 1.3.6.1.2.1.15.4 Access: read-only Reference: None Description:

The BGP Identifier of local system.

bgpPathAttrPeer

Registration: 1.3.6.1.2.1.15.5.1.1 Access: read-only Reference: None Description:

The IP address of the peer where the path
information was learned.

bgpPathAttrDestNetwork

Registration: 1.3.6.1.2.1.15.5.1.2 Access: read-only Reference: None Description:

The address of the destination network.

bgpPathAttrOrigin

Registration: 1.3.6.1.2.1.15.5.1.3 Access: read-only Reference: None Description:

The ultimate origin of the path information.

bgpPathAttrASPath

Registration: 1.3.6.1.2.1.15.5.1.4 Access: read-only Reference: None 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;

bgpPathAttrNextHop

Registration: 1.3.6.1.2.1.15.5.1.5 Access: read-only Reference: None Description:

The address of the border router that should
be used for the destination network.

bgpPathAttrInterASMetric

Registration: 1.3.6.1.2.1.15.5.1.6 Access: read-only Reference: None Description:

The optional inter-AS metric. If this
attribute has not been provided for this route,
the value for this object is 0.

bgp4PathAttrPeer

Registration: 1.3.6.1.2.1.15.6.1.1 Access: read-only Reference: None Description:

The IP address of the peer where the path
information was learned.

bgp4PathAttrIpAddrPrefixLen

Registration: 1.3.6.1.2.1.15.6.1.2 Access: read-only Reference: None Description:

Length in bits of the IP address prefix in the
Network Layer Reachability Information field.

bgp4PathAttrIpAddrPrefix

Registration: 1.3.6.1.2.1.15.6.1.3 Access: read-only Reference: None 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.

bgp4PathAttrOrigin

Registration: 1.3.6.1.2.1.15.6.1.4 Access: read-only Reference: None Description:

The ultimate origin of the path information.

bgp4PathAttrASPathSegment

Registration: 1.3.6.1.2.1.15.6.1.5 Access: read-only Reference: None 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
string as a pair of octets according to the
following algorithm:

first-byte-of-pair = ASNumber / 256;
second-byte-of-pair = ASNumber & 255;

bgp4PathAttrNextHop

Registration: 1.3.6.1.2.1.15.6.1.6 Access: read-only Reference: None Description:

The address of the border router that should
be used for the destination network.

bgp4PathAttrMultiExitDisc

Registration: 1.3.6.1.2.1.15.6.1.7 Access: read-only Reference: None 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.

bgp4PathAttrLocalPref

Registration: 1.3.6.1.2.1.15.6.1.8 Access: read-only Reference: None Description:

The originating BGP4 speaker's degree of
preference for an advertised route. A value of
-1 indicates the absence of this attribute.

bgp4PathAttrAtomicAggregate

Registration: 1.3.6.1.2.1.15.6.1.9 Access: read-only Reference: None Description:

Whether or not a system has selected
a less specific route without selecting a
more specific route.

bgp4PathAttrAggregatorAS

Registration: 1.3.6.1.2.1.15.6.1.10 Access: read-only Reference: None Description:

The AS number of the last BGP4 speaker that
performed route aggregation. A value of zero (0)
indicates the absence of this attribute.

bgp4PathAttrAggregatorAddr

Registration: 1.3.6.1.2.1.15.6.1.11 Access: read-only Reference: None 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.

bgp4PathAttrCalcLocalPref

Registration: 1.3.6.1.2.1.15.6.1.12 Access: read-only Reference: None 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.

bgp4PathAttrBest

Registration: 1.3.6.1.2.1.15.6.1.13 Access: read-only Reference: None Description:

An indication of whether or not this route
was chosen as the best BGP4 route.

bgp4PathAttrUnknown

Registration: 1.3.6.1.2.1.15.6.1.14 Access: read-only Reference: None 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.