From: Vincent Roqueta <vincent.roqueta@ext.bull.net>
To: netdev@oss.sgi.com
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>,
Tony Reix <Tony.Reix@Bull.Net>
Subject: IP More Fragements bit problem.
Date: Fri, 11 Feb 2005 17:08:16 +0100 [thread overview]
Message-ID: <200502111708.16024.vincent.roqueta@ext.bull.net> (raw)
Hello all,
I am working on NFSv4 and I found an IP problem while doing interoperability
testing with AIX.
The More Fragements (MF) bits is set on the last packet sent in a list of
packets that sould be reassembled
For example :
If we get the A, B, C, D packets that may be reassembled into ABCD we sould
have
A + MF
B + MF
C + MF
D
On kernel 2.6.10rc2 and laters (last tested is 2.6.11-rc3) we have:
A + MF
B + MF
C + MF
D + MF
That cause AIX waiting for the last packet with out sending ack
So Linux suppose AIX didn't receive all, and re send all packets.
So AIX is receiving that:
A + MF
B + MF
C + MF
D + MF
*DELAY *
A + MF
B + MF
C + MF
D + MF
*DELAY*
A + MF
B + MF
C + MF
D + MF
*DELAY*
...
After a while AIX destroy first fragments because of the IP fragements life
time. Trond Myklebust said me you can do anything for that?
Cher,
Vincent ROQUETA
next reply other threads:[~2005-02-11 16:08 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-11 16:08 Vincent Roqueta [this message]
2005-02-11 18:24 ` IP More Fragements bit problem Andi Kleen
2005-02-14 8:27 ` Vincent Roqueta
2005-02-11 18:44 ` Nivedita Singhvi
2005-02-14 8:29 ` Vincent Roqueta
2005-02-14 12:37 ` Vincent Roqueta
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