Date: Wed, 11 Jan 2006 16:47:11 +0300 From: Gleb Smirnoff <glebius@FreeBSD.org> To: Sebastian Schwerdhoefer <sschwerdhoefer@multamedio.de> Cc: freebsd-net@FreeBSD.org Subject: Re: Router with CARP: reproducible deadlock Message-ID: <20060111134711.GD57606@cell.sick.ru> In-Reply-To: <20060111133600.GF9151@localdomain> References: <20060111125354.GE9151@localdomain> <20060111131650.GC57606@FreeBSD.org> <20060111133600.GF9151@localdomain>
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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
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