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  From: Alan Kennington <akenning@topology.org>
  To  : LinuxSA <linuxsa@linuxsa.org.au>
  Date: Thu, 17 May 2001 19:13:33 +0930

amusing TCP layer log file message

I just saw this in my log file:

May 17 18:52:00 dog kernel: TCP: peer 171.31.0.10:2806/8003 shrinks window 1773340756:3656:1773346548. Bad, what else can I say?       

Obviously some joker has been writing silly things into
the TCP code!! The file is linux/net/ipv4/tcp_input.c.
(The file has 11 authors. So it's not clear who to credit with
this comment.)

171.31.0.10 => szfw.mol.hu

Obviously someone in Hungary has a dodgy TCP stack too.

Cheers,
Alan Kennington.

PS. For those who are not protocol engineers, there is a rule in
the TCP protocol that you never reduce the TCP window back to
before it was before. 

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