Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 30 Oct 2003 21:11:54 -0800
From:      Lars Eggert <larse@ISI.EDU>
To:        deischen@freebsd.org
Cc:        current@freebsd.org
Subject:   Re: wi problem with message > 7400 bytes
Message-ID:  <3FA1EF1A.7070000@isi.edu>
In-Reply-To: <Pine.GSO.4.10.10310302254170.28714-100000@pcnet5.pcnet.com>
References:  <Pine.GSO.4.10.10310302254170.28714-100000@pcnet5.pcnet.com>

next in thread | previous in thread | raw e-mail | index | archive | help
This is a cryptographically signed message in MIME format.

--------------ms000007070603000504090808
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Daniel Eischen wrote:
>>
>>Could you post a tcpdump for each case? I wonder if this is related to a 
>>fragmentation issue I've seen in the past.
> 
> 22:46:43.513038 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52198:1480@0+)
> 22:46:48.522475 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52199:1480@0+)
> 22:46:53.532018 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52200:1480@0+)
> 22:46:58.541178 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52201:1480@0+)
> 22:47:03.553048 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52202:1480@0+)
> 22:47:08.568862 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52203:1480@0+)
> 22:47:13.583328 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52204:1480@0+)
> 22:47:18.578512 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52205:1480@0+)
> 22:47:23.609098 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52206:1480@0+)
> 22:47:28.597680 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52207:1480@0+)
> 22:47:33.607059 gpz.foo.bar.com.38340 > vespa.12345: udp 7393 (frag 52208:1480@0+)

It's not what I've seen in the past - but also pretty strange! Only the
first fragment seems to be received. Wonder what happened to the other
fragments...

If you tcpdump on gpz, does the output look the same? Also, you may want
to run the tcpdump without a filter (if you don't do this already) to
see if the other fragments show up as corrputed frames or something.

(As an aside, fragmentation on a lossy link compounds throughput issues,
but of course you know that already.)

Lars
-- 
Lars Eggert <larse@isi.edu>           USC Information Sciences Institute

--------------ms000007070603000504090808
Content-Type: application/x-pkcs7-signature; name="smime.p7s"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="smime.p7s"
Content-Description: S/MIME Cryptographic Signature
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--------------ms000007070603000504090808--



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3FA1EF1A.7070000>