From owner-freebsd-stable@FreeBSD.ORG Tue Feb 2 19:44:10 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AC58A106566B for ; Tue, 2 Feb 2010 19:44:10 +0000 (UTC) (envelope-from mike@sentex.net) Received: from lava.sentex.ca (pyroxene.sentex.ca [199.212.134.18]) by mx1.freebsd.org (Postfix) with ESMTP id 761B08FC0A for ; Tue, 2 Feb 2010 19:44:10 +0000 (UTC) Received: from mdt-xp.sentex.net (simeon.sentex.ca [192.168.43.27]) by lava.sentex.ca (8.14.3/8.14.3) with ESMTP id o12Ji3L4000876; Tue, 2 Feb 2010 14:44:03 -0500 (EST) (envelope-from mike@sentex.net) Message-Id: <201002021944.o12Ji3L4000876@lava.sentex.ca> X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 Date: Tue, 02 Feb 2010 14:44:09 -0500 To: Jonathan Chen , freebsd-stable@freebsd.org From: Mike Tancsa In-Reply-To: <20100202193616.GA16953@osiris.chen.org.nz> References: <20100202193616.GA16953@osiris.chen.org.nz> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Cc: Subject: Re: 8-STABLE outgoing scp stalling frequently. X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 02 Feb 2010 19:44:10 -0000 At 02:36 PM 2/2/2010, Jonathan Chen wrote: >Hi, > >I've noticed that on a recent 8-STABLE/amd64, scp(1) appears to be >stalling very frequently. This is the output from a "scp -v -v" >of a 300Mb file from a local to a remote within an internal network: Hi, Is it on the same ethernet segment, or does it go through a router(s) and is the path asymmetric? I noticed similar symptoms on a jailed box where the round trip was asymmetric and an intermediary router was generating a lot of ICMP redirects that were ignored by the sending host. ---Mike -------------------------------------------------------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet since 1994 www.sentex.net Cambridge, Ontario Canada www.sentex.net/mike