From owner-freebsd-net@FreeBSD.ORG Wed Jan 11 13:47:14 2006 Return-Path: X-Original-To: freebsd-net@FreeBSD.org Delivered-To: freebsd-net@FreeBSD.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A749316A422 for ; Wed, 11 Jan 2006 13:47:14 +0000 (GMT) (envelope-from glebius@FreeBSD.org) Received: from cell.sick.ru (cell.sick.ru [217.72.144.68]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8603143D4C for ; Wed, 11 Jan 2006 13:47:13 +0000 (GMT) (envelope-from glebius@FreeBSD.org) Received: from cell.sick.ru (glebius@localhost [127.0.0.1]) by cell.sick.ru (8.13.3/8.13.3) with ESMTP id k0BDlBwr061472 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Wed, 11 Jan 2006 16:47:12 +0300 (MSK) (envelope-from glebius@FreeBSD.org) Received: (from glebius@localhost) by cell.sick.ru (8.13.3/8.13.1/Submit) id k0BDlBOk061471; Wed, 11 Jan 2006 16:47:11 +0300 (MSK) (envelope-from glebius@FreeBSD.org) X-Authentication-Warning: cell.sick.ru: glebius set sender to glebius@FreeBSD.org using -f Date: Wed, 11 Jan 2006 16:47:11 +0300 From: Gleb Smirnoff To: Sebastian Schwerdhoefer Message-ID: <20060111134711.GD57606@cell.sick.ru> Mail-Followup-To: Gleb Smirnoff , Sebastian Schwerdhoefer , freebsd-net@FreeBSD.org References: <20060111125354.GE9151@localdomain> <20060111131650.GC57606@FreeBSD.org> <20060111133600.GF9151@localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline In-Reply-To: <20060111133600.GF9151@localdomain> User-Agent: Mutt/1.5.6i Cc: freebsd-net@FreeBSD.org Subject: Re: Router with CARP: reproducible deadlock X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 11 Jan 2006 13:47:14 -0000 On Wed, Jan 11, 2006 at 02:36:00PM +0100, Sebastian Schwerdhoefer wrote: S> Gleb Smirnoff schrieb am 2006-01-11 um 14:16 Uhr: S> > This means that your NIC doesn't detect loss of Ethernet link. What S> > NICs do you use? Please demask "net1" and "net2". S> S> I already gave up and dismantled my test scenario, but with this S> information I'll give it another try soon. I'll have a look which NICs S> are used and possibly change them... S> S> But does this also mean, that carp depends on the ability of the NIC S> to detect link loss? Preemption depends on this. You want router2 to preempt router1 on the network, where router1 has working interface, when router1 has a non-working interface in the other network, right? To do this router1 must give up its mastering on all nets if one interface went down. To tell whether interface went down or not we need a NIC that is capable to detect this. -- Totus tuus, Glebius. GLEBIUS-RIPN GLEB-RIPE