[c-nsp] BGP doesn't advertise prefixes

Phil Mayers p.mayers at imperial.ac.uk
Tue Apr 28 06:30:26 EDT 2015


On 28/04/15 10:59, Samol wrote:
> Hi All,
>
> Weird issue of BGP running on:
>
> Cisco IOS Software, s72033_rp Software (s72033_rp-IPSERVICESK9_WAN-M),
> Version 12.2(33)SXJ2, RELEASE SOFTWARE (fc4)
>
> cisco WS-C6503-E (R7000) processor (revision 1.3) with 983008K/65536K bytes
> of memory.
>
> We did the configuration correctly and we applied on different peers. other
> peers are advertising routes, but on peer is not. using "sh ip bgp
> route-map X" , we can see that route-map is matching what we want, however,
> " show ip bgp neighbors 1.2.3.4 advertised-routes " gives only one prefix
> advertise out, and sometimes it doesn't advertise out either.
>
> Is there any known bug on this or anything else should I check ?

I have seen some bugs on 6500 with BGP - "stuck" routes which appear to 
have suffered a reference-counting error - but it's much more likely to 
be a simple config problem.

What does:

sh ip bgp <theprefix/mask>

...say?


More information about the cisco-nsp mailing list