From owner-freebsd-current Sat Feb 22 7:59:49 2003 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1079337B401; Sat, 22 Feb 2003 07:59:48 -0800 (PST) Received: from tesla.distributel.net (nat.MTL.distributel.NET [66.38.181.24]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4D1B443F93; Sat, 22 Feb 2003 07:59:47 -0800 (PST) (envelope-from bmilekic@unixdaemons.com) Received: (from bmilekic@localhost) by tesla.distributel.net (8.11.6/8.11.6) id h1MFx3L85351; Sat, 22 Feb 2003 10:59:03 -0500 (EST) (envelope-from bmilekic@unixdaemons.com) Date: Sat, 22 Feb 2003 10:59:03 -0500 From: Bosko Milekic To: Robert Watson Cc: current@FreeBSD.org Subject: Re: TCP connections timing out "real fast" Message-ID: <20030222105903.A85320@unixdaemons.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: ; from rwatson@FreeBSD.org on Sat, Feb 22, 2003 at 10:57:05AM -0500 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Sat, Feb 22, 2003 at 10:57:05AM -0500, Robert Watson wrote: > > Don't yet have any quantitative evidence that this is the case, but I feel > like TCP sessions have been timing out on me a lot faster than they used > to. For example, yesterday a machine got unplugged from the network for > about 15 seconds: in that time, the SSH sessions to the machine timed out > and disconnected. This morning, a machine generated a lot of output to > the serial console keeping it substantially busy for about 20 seconds; in > that time, the SSH session to it timed out. I'm going to see if I can't > generate some tcpdump traces later today to confirm my suspicions, but was > wondering if anyone else (annecdotally or not) has seen similar things? > > Robert N M Watson FreeBSD Core Team, TrustedBSD Projects > robert@fledge.watson.org Network Associates Laboratories I have (annecdotally) but I believe I'm seeing it on -STABLE too... it's tough to tell... how recent are your -CURRENT machines, though, and is it something that you think just started happening or has it been happening for a while now? FWIW, I can't say for sure that this is related to TCP connection timeouts. -- Bosko Milekic * bmilekic@unixdaemons.com * bmilekic@FreeBSD.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message