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From: Nivedita Singhvi <niv@us.ibm.com>
To: palbrecht@qwest.net
Cc: linux-kernel@vger.kernel.org, netdev <netdev@oss.sgi.com>
Subject: Re: question about linux tcp request queue handling
Date: Sun, 06 Jul 2003 13:24:46 -0700	[thread overview]
Message-ID: <3F08858E.8000907@us.ibm.com> (raw)


> Linux (2.4.18) places incoming connection requests into the syn_recd state
> when the server's backlog queue is full.  I thought they were supposed to be
> discarded if the server's backlog is full, forcing the client to
> subsequently retransmit the request after it times out.  Why does linux put
> the server side into the syn_recd state when its backlog is full?

Do you have tcp_syncookies on? And are you exceeding
the len as configured by tcp_max_syn_backlog?

thanks,
Nivedita

[Please cc or post to netdev, like most networking folk,
  dont subscribe to lkml]



             reply	other threads:[~2003-07-06 20:13 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-06 20:24 Nivedita Singhvi [this message]
2003-07-07  0:12 ` question about linux tcp request queue handling Paul Albrecht
2003-07-06 23:59   ` Nivedita Singhvi
2003-07-07  6:20     ` Paul Albrecht
2003-07-07  5:51       ` Nivedita Singhvi
2003-07-07  5:59         ` Nivedita Singhvi
2003-07-07 23:30         ` Paul Albrecht
2003-07-06 21:19 Paul Albrecht
     [not found] <3F08858E.8000907@us.ibm.com.suse.lists.linux.kernel>
     [not found] ` <001a01c3441c$6fe111a0$6801a8c0@oemcomputer.suse.lists.linux.kernel>
     [not found]   ` <3F08B7E2.7040208@us.ibm.com.suse.lists.linux.kernel>
     [not found]     ` <000d01c3444f$e6439600$6801a8c0@oemcomputer.suse.lists.linux.kernel>
     [not found]       ` <3F090A4F.10004@us.ibm.com.suse.lists.linux.kernel>
     [not found]         ` <001401c344df$ccbc63c0$6801a8c0@oemcomputer.suse.lists.linux.kernel>
2003-07-07 21:48           ` Andi Kleen
2003-07-07 22:25             ` Doug McNaught
2003-07-07 23:52               ` Andi Kleen
2003-07-08  0:17                 ` Doug McNaught
2003-07-08  0:25                   ` Andi Kleen
2003-07-08 14:09                   ` Horst von Brand
2003-07-08  4:14             ` Paul Albrecht
2003-07-08 19:23             ` Paul Albrecht

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