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Date:      Fri, 02 Feb 2007 17:01:06 +0200
From:      Alexander Motin <mav@alkar.net>
To:        Dave Baukus <david.baukus@us.fujitsu.com>
Cc:        freebsd-net@freebsd.org, nvass@teledomenet.gr
Subject:   Re: ETIMEDOUT bug
Message-ID:  <45C35232.6010002@alkar.net>
In-Reply-To: <1170386588.00681186.1170374401@10.7.7.3>
References:  <1170386588.00681186.1170374401@10.7.7.3>

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Dave Baukus wrote:
> There is a bug  tcp_output() for at least freeBSD6.1
> that causes a perfectly good TCP to be dropped by its
> retransmit timer; the application receives ETIMEDOUT.

> This ETIMEDOUT problem is easily recreated on any old machine
> using a single slow ethernet device and the ttcp test utility.

The same problem is noticed on PPTP links in discussion "ng_pptpgre 
problems: tcp connections reset unexpectedly". There ENOBUFS is 
initiated by congestion control of ng_pptpgre node. Other symptoms are 
the same.

-- 
Alexander Motin mav@alkar.net
Optima Telecom



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