[c-nsp] BGP Advertised Prefixes

[Blake Dunlap]

Are you counting on summarization to limit your feed, or are you
restricting the announcements themselves? Without your actual config it's
hard to guess what is going on here...

-Blake


On Tue, Apr 9, 2013 at 3:13 PM, Ahmed Hilmy <hilmy.aa at gmail.com> wrote:

> Dear Friends,
>
> Recently i have faced a strange issue, BGP session with my UP Links goes
> down due this log at UP Link side:
>  ---------------------------------------------------
>
> RP/0/RSP0/CPU0:Apr  8 13:10:54.818 : bgp[1044]: %ROUTING-BGP-4-MAXPFXEXCEED
> : No. of IPv4 Unicast prefixes received from x.x.x.x: 401 exceed limit 400
>
> RP/0/RSP0/CPU0:Apr  8 13:10:54.818 : bgp[1044]: %ROUTING-BGP-5-ADJCHANGE :
> neighbor x.x.x.x Down - Peer exceeding maximum prefix limit (CEASE
> notification sent - maximum n           umber of prefixes reached) (VRF:
> default)
>
>
> -------------------------------------------------------------
>
> # sh bgp neighbor x.x.x.x detail | i Prefix advertised
>
>   Prefix advertised 2735, suppressed 0, withdrawn 1855, maximum limit
> 524288
> #sh bgp neighbor  x.x.x.x advertised-routes
>
> i count the number of advertised prefixes are only 215
>
> So what Prefix advertised 2735 does it mean ?
> Why i faced this issue with my UP Links , it happened sometime , if i have
> configured BGP filter in wrong way so i have to face this
> issue continuously.
>
> Any suggest plan to check ?
> _______________________________________________
> cisco-nsp mailing list  cisco-nsp at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-nsp
> archive at http://puck.nether.net/pipermail/cisco-nsp/
>