BGP and BGP4+ Introduction

Once a route is dampened, you can display BGP route dampening information, including the time remaining before the dampened routes will be unsuppressed. To display the information, use the following command in Privileged Exec mode:

awplus#

show ip bgp dampening

This command displays BGP route dampening information for

{dampened-paths

all IPv4 paths when you apply the dampened-paths

flap-statisticsparameters}

parameter.

 

 

awplus#

This command displays BGP4+ route dampening information

show bgp ipv6 dampening

{dampened-paths

for all IPv6 paths when you apply the dampened-paths

flap-statisticsparameters}

parameter.

 

 

To clear BGP flap statistics (thus making it less likely that the IPv4 route will be dampened), use the following command in Privileged Exec mode :

awplus#

clear ip bgp flap-statisticsThis command clears BGP flap statistics for all IPv4 routes. [<ip-address><ip-address/m>]

To clear BGP dampening statistics for IPv4 routes, use the following command in

Privileged Exec mode:

awplus#

clear ip bgp dampening This command clears BGP dampening statistics for all IPv4 [<ip-address><ip-address/m>]routes.

To clear BGP4+ flap statistics (thus making it less likely that the IPv6 route will be dampened), use the following command in Privileged Exec mode :

awplus#

clear bgp ipv6 flap-statisticsThis command clears BGP4+ flap statistics for all IPv6 routes. [<ipv6-addr><ipv6-addr/prefix-

length>]

To clear BGP4+ dampening statistics for IPv6 routes, use the following command in

Privileged Exec mode:

awplus#

clear bgp ipv6 dampening This command clears BGP4+ dampening statistics for all IPv6 [<ipv6-addr><ipv6-addr/prefix-routes.

length>]

The flap statistics for a route are also cleared when a BGP or BGP4+ peer is reset. Although the reset withdraws the route, there is no penalty applied, even if route flap dampening is enabled.

 

Software Reference Supplement for SwitchBlade® x8112, x908, x900 and x610 Series Switches

 

C613-50032-01 REV D

AlliedWare PlusTM Operating System - Software Version 5.4.3-2.6

1.25

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Allied Telesis VERSION 5.4.3-2.6, BGP4 manual Show ip bgp dampening