[c-nsp] Cisco BGP Advertised as-path prepends

Kenny Sallee kenny.sallee at gmail.com
Mon Aug 8 02:28:16 EDT 2011


On Sun, Aug 7, 2011 at 9:59 PM, Joseph Hardeman <jwhardeman at gmail.com>wrote:

> Hey Guys,
>
> I have a question regarding displaying the as-path prepends that I am
> announcing to my providers.  With a foundry I could display the prepends
> that I am announcing out, but I don't seem to be able to do that with the
> Cisco or at least I haven't found the command.  Does anyone know the
> command
> I can run on a cisco to show this info?  I would like to make sure my route
> maps are injecting the as-path prepends properly.
>
> Thanks
>
> Joe
>

I don't think there is a command in IOS to do that.  You can view the local
BGP table for the route - it will show prepending there.  show ip bgp nei
<ip> advertised-routes doesn't show the prepending....so I use an external
route server to verify that type of stuff.

Kenny


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