lagg(4) and failover

Eugene Grosbein eugen at
Tue Aug 12 10:55:56 UTC 2008

On Tue, Aug 12, 2008 at 12:37:15PM +0200, Marian Hettwer wrote:

> I'm using lagg(4) on some of our servers and I'm just wondering how the
> failover is implemented.
> The manpage isn't quite clear:
>      failover     Sends and receives traffic only through the master port. 
> If
>                   the master port becomes unavailable, the next active port
> is
>                   used.  The first interface added is the master port; any
>                   interfaces added after that are used as failover devices.
> What is meant by "becomes unavailable"? Is it just the physical link which
> needs to become unavailable to trigger a failover?

Yes. It seems you need lacp protocol described later in the manual.

Eugene Grosbein

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