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Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide User Manual

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show ip bgp neighbors output descriptions (Continued)

TABLE 103

Field

Description

State

Shows the state of the device session with the neighbor. The states are from the
device’s perspective of the session, not the neighbor’s perspective. The state can be
one of the following values:

• 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 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 messages with the neighbor.

If there is more BGP data in the TCP receiver queue, a plus sign (+) is also displayed.

Time

Shows the amount of time this session has been in its current state.

KeepAliveTime

Shows the keepalive time, which specifies how often this device sends KeepAlive
messages to the neighbor.

HoldTime

Shows the hold time, which specifies how many seconds the device will wait for a
KeepAlive or Update message from a BGP4 neighbor before deciding that the neighbor
is dead.

KeepAliveTimer Expire

Shows the time when the keepalive timer is set to expire.

HoldTimer Expire

Shows the time when the hold timer is set to expire.

Minimal Route
Advertisement Interval

Shows the minimum time elapsed between the route advertisements to the same
neighbor.

RefreshCapability

Shows whether the device has received confirmation from the neighbor that the
neighbor supports the dynamic refresh capability.

Configuring BGP4 (IPv4)

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FastIron Ethernet Switch Layer 3 Routing Configuration Guide

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