<Keepalives are temporarily in throttle due to closed TCP window>

Richard A Steenbergen ras at e-gerbil.net
Thu Sep 17 01:58:47 UTC 2009

On Wed, Sep 16, 2009 at 06:47:10PM -0500, Michael Ruiz wrote:
> >Either a) you have the mtu misconfigured on that 7206vxr
> That part is where I am at a loss.  How is it the 6509 can establish a
> IBGP session with a 7606 when it has to go through the 7206 VXR?  The
> DS-3s are connected to the 7206 VXR. To add more depth to the story.  I
> have 8 IBGP sessions that are connected to the 7206 VXR that have been
> up and running for over a year.  Some of the sessions traverse the DS-3s
> and or a GigE long haul connections.  There are a total 10 Core routers
> that are mixture of Cisco 7606, 6509s, 7206 VXR w/ NPE400s or G1s.  Only
> this one IBGP session out of 9 routers is not being established.  Since
> I have a switch between the 7606 and 7206, I plan to put a packet
> capture server and see what I can see. 

And is that the one that traverses the 3550 with the 1500 byte MTU? 
Re-read what we said. You should be able to test the MTU theory by 
disabling path-mtu-discovery, which will cause MSS to fail back to the 
minimum 576.

Richard A Steenbergen <ras at e-gerbil.net>       http://www.e-gerbil.net/ras
GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)

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