Date: Tue, 15 Mar 2011 11:26:03 -0700 From: Jeremy Chadwick <freebsd@jdc.parodius.com> To: Steve Polyack <korvus@comcast.net> Cc: freebsd-net@freebsd.org, freebsd-stable <freebsd-stable@FreeBSD.org> Subject: Re: MAC address / per-proto ARP caching in 8.1-RELEASE Message-ID: <20110315182603.GA37095@icarus.home.lan> In-Reply-To: <4D7F69FF.2020608@comcast.net> References: <4D7F69FF.2020608@comcast.net>
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On Tue, Mar 15, 2011 at 09:30:39AM -0400, Steve Polyack wrote: > Is anyone aware of some sort of facility in either FreeBSD > 8.1-RELEASE or the em(4) driver which would cause it to cache MAC > addresses / ARP entries for hosts on a per-protocol basis? > > [snipping remaining details; readers can read it here instead:] > [http://lists.freebsd.org/pipermail/freebsd-stable/2011-March/061908.html] The only thing I can think of would be flowtable, but I'm not sure if it's enabled by default on 8.1-RELEASE-p2. You can try the following sysctl to disable it (I would recommend setting this in sysctl.conf and rebooting; I don't know what happens in the case you set it on a live system that's already experiencing the MAC issue you describe). net.inet.flowtable.enable=0 Details: http://conferences.sigcomm.org/sigcomm/2009/workshops/presto/papers/p37.pdf -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP 4BD6C0CB |
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