<Keepalives are temporarily in throttle due to closed TCP window>
Michael Ruiz
mruiz at telwestservices.com
Thu Sep 17 12:46:46 UTC 2009
And is that the one that traverses the 3550 with the 1500 byte MTU?
Both connection traver through the 3550. I will disable the command on 7206 vxr. thanks
-----Original Message-----
From: "Richard A Steenbergen" <ras at e-gerbil.net>
To: "Michael Ruiz" <mruiz at telwestservices.com>
Cc: "Brian Dickson" <Brian.Dickson at concertia.com>; "nanog at nanog.org" <nanog at nanog.org>
Sent: 9/16/09 8:58 PM
Subject: Re: <Keepalives are temporarily in throttle due to closed TCP window>
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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