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Configuring bgp4 restart, Configuring bgp4, Restart – Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) User Manual

Page 139: Configuring bgp4 restart for a vrf, Configuring timers for bgp4 restart (optional)

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Multi-Service IronWare Routing Configuration Guide

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Filtering

You can clear the buffers for all neighbors, for an individual neighbor, or for all the neighbors within
a specific peer group.

To clear these buffers for neighbor 10.0.0.1, enter the following commands.

Brocade# clear ip bgp neighbor 10.0.0.1 last-packet-with-error

Brocade# clear ip bgp neighbor 10.0.0.1 notification-errors

Syntax: clear ip bgp neighbor all | ip-addr | peer-group-name | as-num

last-packet-with-error | notification-errors

The all | ip-addr | peer-group-name | as-num parameters specify the neighbor. The ip-addr
parameter specifies a neighbor by its IP interface with the device. The peer-group-name specifies
all neighbors in a specific peer group. The as-num parameter specifies all neighbors within the
specified AS. The all parameter specifies all neighbors.

Configuring BGP4 Restart

BGP4 Restart can be configured for a global routing instance or for a specified Virtual Routing and
Forwarding (VRF) instance. The following sections describe how to enable the BGP4 Restart
feature.

Configuring BGP4 restart for the global routing instance

Use the following command to enable the BGP4 restart feature globally on a device.

Brocade(config)# router bgp

Brocade(config-bgp)# graceful-restart

Syntax: [no] graceful-restart

Configuring BGP4 Restart for a VRF

Use the following command to enable the BGP4 restart feature for a specified VRF.

Brocade(config)# router bgp

Brocade(config-bgp)# address-family ipv4 unicast vrf blue

Brocade(config-bgp-ipv4u-vrf)# graceful-restart

Syntax: [no] graceful-restart

Configuring timers for BGP4 Restart (optional)

You can optionally configure the following timers to change their values from the default values:

Restart Timer

Stale Routes Timer

Purge Timer

The seconds variable sets the maximum restart wait time advertised to neighbors. Possible values
are 1– 3600 seconds. The default value is 120 seconds.

Configuring the restart timer for BGP4 Restart
Use the following command to specify the maximum amount of time a device will maintain routes
from and forward traffic to a restarting device.

Brocade(config-bgp)# graceful-restart restart-time 150