Brocade Virtual ADX Switch and Router Guide (Supporting ADX v03.1.00) - Manual (Page 352)

338 Brocade Virtual ADX Switch and Router Guide
53-1003246-01
Displaying BGP4+ information
9
This display shows the following information.
TABLE 9 BGP4+ neighbor configuration information and statistics
This field... Displays...
IP Address The IPv6 address of the neighbor.
AS The AS in which the neighbor resides.
EBGP or IBGP Whether the neighbor session is an IBGP session or an EBGP session:
•
EBGP – The neighbor is in another AS.
•
IBGP – The neighbor is in the same AS.
RouterID The neighbor’s router ID.
State The state of the Virtual ADX device’s session with the neighbor. The states are from the
device’s perspective of the session, not the neighbor’s perspective. The state values can be
one of the following:
•
IDLE – The BGP4+ process is waiting to be started. Usually, enabling BGP4 or
establishing a neighbor session starts the BGP4+ process.
•
A minus sign (-) indicates that the session has gone down and the software is
clearing or removing routes.
•
ADMND – The neighbor has been administratively shut down.
•
A minus sign (-) indicates that the session has gone down and the software is
clearing or removing routes.
•
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+4 has received an OPEN message from the neighbor and is
now waiting for either a KEEPALIVE or NOTIFICATION message. If the Virtual ADX 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 messages with the neighbor.
•
If there is more BGP data in the TCP receiver queue, a plus sign (+) is also
displayed.
NOTE: If you display information for the neighbor using the show ipv6 bgp neighbor
ipv6-address command, the TCP receiver queue value will be greater than 0.
Time The amount of time this session has been in its current state.
KeepAliveTime The keep alive time, which specifies how often this Virtual ADX device sends keep alive
messages to the neighbor.
HoldTime The hold time, which specifies how many seconds the Virtual ADX device will wait for a
KEEPALIVE or UPDATE message from a BGP4+ neighbor before deciding that the neighbor is
dead.
RefreshCapability Whether the Virtual ADX has received confirmation from the neighbor that the neighbor
supports the dynamic refresh capability.
Messages Sent
and Received The number of messages this Virtual ADX device has sent to and received from the neighbor.
The display shows statistics for the following message types:
•
Open
•
Update
•
KeepAlive
•
Notification
•
Refresh-Req