[c-nsp] debug BGP flapping peer

[heh heh]

you should be able to by using
debug ip bgp <neighbor ip>

Aaron

On 6/7/07, schilling <schilling2006 at gmail.com> wrote:
>
> Hi,
>
>
> Software Version: 12.2(18)SXF7
>
> Problem Details: BGP peer is flapping only one way. The other way is ok.
> ping
> with small and big packet size are all ok from peer loopbacks and
> connected
> vlan interfaces. show ip bgp neighbor showed that keepalives are
> temporarily in
> throttle due to closed TCP window.  Connection established 4672; dropped
> 4671.
> Last reset due to BGP Notification received, hold time expired.
>
> show ip bgp summary showed problematic peering session OutQ is 925.
>
> >From Philip Smith's  nanog presentation "Troubleshooting BGP", the most
> common cause is the  MTU thing, I  verified that ping from loopback/vlan
> interface on both end to loopback/vlan interface on both end with varied
> sizes are all working good. And ip tcp path-mtu-discovery is turned on on
> both ends.
>
> I knew I can try debug ip bgp or debug ip tcp transaction. Any good docs
> to
> limit the output of the debug commands.
>
> Thanks.
>
>
> Schilling
> _______________________________________________
> 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/
>