Per-VRF BGP Dampening

Unanswered Question
Aug 27th, 2008

Does anyone know if it is possible to enable Per-VRF BGP Dampening? I have a router running 12.4(9)T and when I enable BGP dampening within an address-family, it is enabled under all routing contexts and within VPNV4.

Any ideas?


I have this problem too.
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Giuseppe Larosa Fri, 09/05/2008 - 03:12

Hello Jon,

try to give the command only under the address-family of interest

it should be supported

Command Modes

>>Address family configuration

Router configuration


Sorry, I haven't seen you had already done. This may be a bug in your release.

As a workaround you could try to use a route-map like in this example:

Router(config)# router bgp 50000

Router(config-router)# address-family ipv4

Router(config-router-af)# bgp dampening route-map BLUE

Router(config-router-af)# end

Hope to help


gilljon Fri, 09/05/2008 - 03:58

Hi Giuseppe,

Thanks for your reply. Under the address-family is where I entered it and yes it is supported. However, my question was that when I enter the command under the relevant address-family, it activates it for all address-families including the VPNv4 routing context.

I have tried this on a number of different IOS versions including the latest.

This would appear to be a feature in this case.


Giuseppe Larosa Sat, 09/06/2008 - 01:18

Hello Jon,

I would expect that if a command is given inside an af (address-family) its effect is limited to that af.

Otherwise, it would be wise to don't let available the command in address-family config mode but only in router-mode.

It is misleading.

Hope to help



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