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Re: [lwip-users] TCP causing out of mem pool [RAW]

From: Kieran Mansley
Subject: Re: [lwip-users] TCP causing out of mem pool [RAW]
Date: Wed, 29 Jul 2009 10:38:00 +0100

On Wed, 2009-07-29 at 02:20 -0700, Chris_S wrote:
> > Still looks like the lwIP side is not closing its end of the
> > connections.  There are no FIN packets coming from  Most
> > likely this is due to the stack waiting for the application to call
> > tcp_close().
> This sounds like there is something missing in the HTTPd I'm using.  I will
> look into it.
> Is there any perfect wireshark "reference" trace anyone can supply for say
> the SICS demo page?  Should be about 2 dozen summary packet lines.  This
> would be highly useful as a benchmark for us to compare results to, and know
> when things are working the way they really should.

There's no such thing really - TCP varies its conversation depending on
how things are configured (e.g. memory), how quickly things happen, the
behaviour of the other end, and so on.  Lots of this is
non-deterministic, so you wouldn't be able to do a direct comparison and
know it was good or bad.


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