Date: Wed, 16 Mar 2011 20:50:10 GMT From: Steve Polyack <spolyack@collaborativefusion.com> To: freebsd-amd64@FreeBSD.org Subject: Re: amd64/155604: Flowtable excessively caches dest MAC addresses for outgoing UDP traffic Message-ID: <201103162050.p2GKoAcb045534@freefall.freebsd.org>
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The following reply was made to PR amd64/155604; it has been noted by GNATS. From: Steve Polyack <spolyack@collaborativefusion.com> To: bug-followup@FreeBSD.org, spolyack@collaborativefusion.com Cc: Subject: Re: amd64/155604: Flowtable excessively caches dest MAC addresses for outgoing UDP traffic Date: Wed, 16 Mar 2011 16:32:54 -0400 I've just confirmed that this can also happen with TCP. As long as something on the freebsd system is constantly trying to form a connection to the same destination address & port, the old MAC address of the router is used as the destination MAC address for new connection attempts. Since the connection attempts continue to match the old flows, they are never expired. Disabling the flowtable again causes things to immediately return to normal and send traffic to the correct destination MAC address.
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