Date: Sun, 27 Sep 2009 19:01:51 +0200 From: Ulrich =?utf-8?B?U3DDtnJsZWlu?= <uqs@spoerlein.net> To: Daniel Eischen <deischen@freebsd.org> Cc: freebsd-stable@freebsd.org, Maciej Jan Broniarz <gausus@gausus.net> Subject: Re: problem with link aggregation failover Message-ID: <20090927170151.GK69612@acme.spoerlein.net> In-Reply-To: <Pine.GSO.4.64.0909270946460.26181@sea.ntplx.net> References: <1704894341.63251252787681862.JavaMail.root@dagobah.intersec.pl> <20090927091314.GG69612@acme.spoerlein.net> <Pine.GSO.4.64.0909270946460.26181@sea.ntplx.net>
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On Sun, 27.09.2009 at 09:49:03 -0400, Daniel Eischen wrote: > On Sun, 27 Sep 2009, Ulrich Spörlein wrote: > > > On Sat, 12.09.2009 at 22:34:41 +0200, Maciej Jan Broniarz wrote: > >> Hello, > >> > >> I am trying to configure lagg failover mode on 7.2. > >> > >> I do: > >> > >> # ifconfig xl0 up > >> # ifconfig fxp0 up > >> # ifconfig lagg0 create > >> # ifconfig lagg0 up laggproto failover laggport xl0 laggport fxp0 > >> # dhclient lagg0 > >> > >> And all seems to work ok. Still I disconnect the cable from the master card the connection stops. > >> Although fxp0 becomes active the connection is still dead. If I start pinging any host from that machine > >> the conection comes back to live, but having ping in background all the time is not the solution. > >> > >> Am I doing something wrong or have I missed something in the configuration? > > > > Well, where is xl0 and fxp0 connected to? My first bet would be a > > standard switch, if so try setting both devices to the same MAC address. > > Otherwise the peers you connect to will send the IP packets to the wrong > > MAC address and only after a timeout (or a forced push thanks to the > > ping) will get their ARP cache into shape. > > lagg should automatically make xl0 and fxp0 appear at the same MAC > address. The only time you should have to manually set the MAC > address would be on cloned interfaces such as wlan, because the > cloned interfaces don't propagate the MAC change down to the > interface from which they were cloned. Interesting, thanks for the hint. I only use it for LAN/WLAN failover, so that's why I have to do this anyway. Regards, Uli
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