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Date: Tue, 26 Jun 2007 14:48:06 -0500
From: Dan Nelson <dnelson@allantgroup.com>
To: "Brian A. Seklecki" <bseklecki@collaborativefusion.com>
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Cc: Frank Bonnet <f.bonnet@esiee.fr>, freebsd-questions@freebsd.org
Subject: Re: Bondbind  like for FreeBSD ?
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In the last episode (Jun 26), Brian A. Seklecki said:
> On Tue, 2007-06-26 at 10:36 -0500, Dan Nelson wrote:
> > >  ethernet load balancing or trunking that use the Cisco's
> > >  etherchannel ) ?
> >
> > lagg
> 
> Very cool.
> 
> Two questions:
> 
> 1) "fec" and "lacp" must be used against the same physical switch,
> correct?

Yes.  The lagg device is strictly to convert multiple links between two
devices to a single logical one.  You can't build a mesh out of a bunch
of switches or anything like that.
 
> 2) What is the deterministic logic behind active/standby for
> "failover"? A heartbeat on the segment or physical interface state
> change?

All the protocols use link state, and lacp additionally sends its
configuration packets every 30 seconds.

-- 
	Dan Nelson
	dnelson@allantgroup.com