Date: Sun, 4 Mar 2007 00:34:06 +0300 From: Yar Tikhiy <yar@comp.chem.msu.su> To: Bruce M Simpson <bms@incunabulum.net> Cc: freebsd-net@freebsd.org Subject: Re: CARP behaviour Message-ID: <20070303213406.GA40430@comp.chem.msu.su> In-Reply-To: <45E8BB39.9030602@incunabulum.net> References: <45E8BB39.9030602@incunabulum.net>
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On Sat, Mar 03, 2007 at 12:03:05AM +0000, Bruce M Simpson wrote: > During testing of M_PROMISC I noticed a couple of issues with our CARP. > > 1. carp doesn't seem to maintain input/output statistics on its ifnet. This should be OK. A carp(4) interface is just a place for CARP settings to live. No real traffic passes through it. > 2. carp doesn't seem to detect that the underlying route to the subnet > its address is exposed on changed to another interface. I seem to recollect that I ran into this issue, too. Of course, it's a bug. CARP apparently caches the old route forever. It should track such a change if it doesn't yet. We have a sort of notification for the event, don't we? The userland has the routing socket for that, but I don't remember about the kernel. Thank you for paying attention to that! -- Yar
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