[c-nsp] Advertised community in BGP

Michael Smith mksmith at noanet.net
Wed Dec 15 01:54:44 EST 2004


 
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> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of dje
> Sent: Tuesday, December 14, 2004 12:00 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] Advertised community in BGP
> 
> All,
> 
> 
> Is there a command available on Cisco routers to see the
> communities being advertised *to* a BGP peer? The only command I
> can find to show advertised routes is 'show ip bgp neighbor x.x.x.x
> advertised-routes' but there is nothing to see what communities are
> being sent.
> 
> Thanks,
> 
> Daniel Evans
> 

Well, if you use the 'show ip bgp community/community-list aa:nn'
command it will tell you what routes are associated with a particular
community.  I think the community is always advertised, so you can
assume (dangerous, I know) that the associated route is being
advertised with the community in question.

Mike

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