[111870] in North American Network Operators' Group

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Re: Linux Router: TCP slow, UDP fast

daemon@ATHENA.MIT.EDU (Chris)
Sat Feb 14 14:07:46 2009

In-Reply-To: <c8a7026b0902141105m135a8221p6069797d3c6bd87d@mail.gmail.com>
Date: Sat, 14 Feb 2009 19:07:27 +0000
From: Chris <chris@ghostbusters.co.uk>
To: nanog list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org

Thanks for all the answers. I'm currently going down the path of looking at
IPtables' conntrack slowing the forwarding rate.

If I can't find any more docs then I'll boot the router with a kernel
without any IPtables built-in and see if that's it.

As Lee said "rollback" ! That's the last change to the box. If I can rule
out the logging of traffic from conntrack is slowing down
the forwarding then I can look into hardware further ;-)

Chris

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