An extension to the IETF BGP4 MIB module defined in
RFC 1657.
Following is the terminology associated with Border
Gateway Protocol(BGP).
UPDATE message
UPDATE messages are used to transfer routing
information between BGP peers. An UPDATE message
is used to advertise a single feasible route to a
peer, or to withdraw multiple unfeasible routes
from service.
Adj-RIBs-In
The Adj-RIBs-In store routing information that has
been learned from inbound UPDATE messages. Their
contents represent routes that are available as an
input to the Decision Process.
Loc-RIB(BGP table)
The Loc-RIB contains the local routing information
that the BGP speaker has selected by applying its
local policies to the routing information contained
in its Adj-RIBs-In.
Adj-RIBs-Out
The Adj-RIBs-Out store the information that the
local BGP speaker has selected for advertisement to
its peers. The routing information stored in the
Adj-RIBs-Out will be carried in the local BGP
speaker's UPDATE messages and advertised to its
peers.
Path Attributes
A variable length sequence of path attributes is
present in every UPDATE. Each path attribute is a
triple of variable length.
Network Layer Reachability Information(NLRI)
A variable length field present in UPDATE messages
which contains a list of Network Layer address
prefixes.
Address Family Identifier(AFI)
Primary identifier to indicate the type of the
Network Layer Reachability Information(NLRI) being
carried.
Subsequent Address Family Identifier(SAFI)
Secondary identifier to indicate the type of the
Network Layer Reachability Information(NLRI) being
carried.
The BGP cbgpFsmStateChange notification is generated
for every BGP FSM state change. The bgpPeerRemoteAddr
value is attached to the notification object ID.
cbgpPeer2PrefixThresholdClear
.1.3.6.1.4.1.9.9.187.0.10
The cbgpPeer2PrefixThresholdClear notification is
generated when prefix count drops below the configured
clear threshold on a session for an address family once
cbgpPeer2PrefixThresholdExceeded is generated.
This will not be generated if the peer session goes down
after the generation of cbgpPrefixThresholdExceeded.
cbgpBackwardTransition
.1.3.6.1.4.1.9.9.187.0.2
The cbgpBackwardTransition Event is generated when the
BGP FSM moves from a higher numbered state to a lower
numbered state. The bgpPeerRemoteAddr value is attached
to the notification object ID.
cbgpPrefixThresholdExceeded
.1.3.6.1.4.1.9.9.187.0.3
The cbgpPrefixThresholdExceeded notification is
generated when prefix count exceeds the configured
warning threshold on a session for an address
family. The bgpPeerRemoteAddr, cbgpPeerAddrFamilyAfi
and cbgpPeerAddrFamilySafi values are attached to the
notification object ID.
cbgpPrefixThresholdClear
.1.3.6.1.4.1.9.9.187.0.4
The cbgpPrefixThresholdClear notification is
generated when prefix count drops below the configured
clear threshold on a session for an address family once
cbgpPrefixThresholdExceeded is generated. This won't
be generated if the peer session goes down after the
generation of cbgpPrefixThresholdExceeded.
The bgpPeerRemoteAddr, cbgpPeerAddrFamilyAfi and
cbgpPeerAddrFamilySafi values are attached to the
notification object ID.
cbgpPeer2EstablishedNotification
.1.3.6.1.4.1.9.9.187.0.5
The cbgpPeer2EstablishedNotification notification
is generated when the BGP FSM enters the established
state.
cbgpPeer2BackwardTransNotification
.1.3.6.1.4.1.9.9.187.0.6
The cbgpPeer2BackwardTransNotification notification
is generated when the BGP FSM moves from a higher
numbered state to a lower numbered state.
cbgpPeer2FsmStateChange
.1.3.6.1.4.1.9.9.187.0.7
The cbgpPeer2FsmStateChange notification is generated
for every BGP FSM state change.
cbgpPeer2BackwardTransition
.1.3.6.1.4.1.9.9.187.0.8
The cbgpPeer2BackwardTransition notification is
generated when the BGP FSM moves from a higher numbered
state to a lower numbered state.
cbgpPeer2PrefixThresholdExceeded
.1.3.6.1.4.1.9.9.187.0.9
The cbgpPeer2PrefixThresholdExceeded notification is
generated when prefix count exceeds the configured
warning threshold on a session for an address
family.