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Date: Tue, 15 Sep 2009 17:38:48 +1000
From: peterjeremy@acm.org
To: Maciej Jan Broniarz <gausus@gausus.net>
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Cc: freebsd-stable <freebsd-stable@freebsd.org>
Subject: Re: problem with link aggregation failover
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On 2009-Sep-13 12:11:45 +0200, Maciej Jan Broniarz <gausus@gausus.net> wrot=
e:
>I have configured the same mac on both cards.=20

This should be done automatically by lagg.

>When I disconnect the cable from xl0, the network connection dies, and my =
lagg0 looks like this:
>
>lagg0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1=
500
>	options=3D9<RXCSUM,VLAN_MTU>
>	ether 00:01:02:20:24:ef
>	inet 192.168.1.104 netmask 0xffffff00 broadcast 192.168.1.255
>	media: Ethernet autoselect
>	status: active
>	laggproto failover
>	laggport: fxp0 flags=3D4<ACTIVE>
>	laggport: xl0 flags=3D1<MASTER>
>
>What might be the problem with that setup?

Both sides of a lagg need to co-operate to pass packets.  You need to
configure the switch to failover as well.

--=20
Peter Jeremy

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