Brocade Virtual ADX Switch and Router Guide (Supporting ADX v03.1.00) - Manual (Page 295)

Brocade Virtual ADX Switch and Router Guide 281
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Displaying BGP4 information
8
State The state of device sessions with each neighbor. The states are from this
perspective of the device, not the neighbor. State values are based on the
BGP4 state machine values described in RFC 1771 and can be one of the
following for each device:
•
IDLE – The BGP4 process is waiting to be started. Usually, enabling
BGP4 or establishing a neighbor session starts the BGP4 process.
•
ADMND – The neighbor has been administratively shut down. Refer to
“Administratively shutting down a session with a BGP4 neighbor” on
page 234.
•
CONNECT – BGP4 is waiting for the connection process for the TCP
neighbor session to be completed.
•
ACTIVE – BGP4 is waiting for a TCP connection from the neighbor.
Note: If the state frequently changes between CONNECT and ACTIVE,
there may be a problem with the TCP connection.
•
OPEN SENT – BGP4 is waiting for an Open message from the neighbor.
•
OPEN CONFIRM – BGP4 has received an Open message from the
neighbor and is now waiting for either a KEEPALIVE or NOTIFICATION
message. If the device receives a KEEPALIVE message from the
neighbor, the state changes to Established. If the message is a
NOTIFICATION, the state changes to Idle.
•
ESTABLISHED – BGP4 is ready to exchange UPDATE packets with the
neighbor.
Operational States:
Additional information regarding the operational states of the BGP4 states
described above may be added as described in the following:
•
(+) – is displayed if there is more BGP4 data in the TCP receiver queue.
Note: If you display information for the neighbor using the show ip bgp
neighbor ip-addr command, the TCP receiver queue value will be greater
than 0.
•
(-) – indicates that the session has gone down and the software is
clearing or removing routes.
•
(*) – indicates that the inbound or outbound policy is being updated for
the peer.
•
(s) – indicates that the peer has negotiated restart, and the session is in
a stale state.
•
(r) – indicates that the peer is restarting the BGP4 connection, through
restart.
•
(^) – on the standby MP indicates that the peer is in the ESTABLISHED
state and has received restart capability (in the primary MP).
•
() – indicates that the device is waiting to receive the “End of RIB”
message the peer.
•
(p) – indicates that the neighbor ribout group membership change is
pending or in progress
Time The time that has passed since the state last changed.
Accepted The number of routes received from the neighbor that this device installed in
the BGP4 route table. Usually, this number is lower than the RoutesRcvd
number. The difference indicates that this device filtered out some of the
routes received in the UPDATE messages.
Filtered The routes or prefixes that have been filtered out:
•
If soft reconfiguration is enabled, this field shows how many routes were
filtered out (not placed in the BGP4 route table) but retained in memory.
•
If soft reconfiguration is not enabled, this field shows the number of
BGP4 routes that have been filtered out.
TABLE 39 BGP4 summary information (Continued)
This field... Displays...