Subject: Re: HA on NetBSD router/firewall using agr
To: None <tech-net@netbsd.org>
From: Julian Coleman <jdc@coris.org.uk>
List: tech-net
Date: 03/29/2007 21:56:56
> I've been reading about agr and want to setup my router/firewall with
> HA.
>
> Currently it's a Sun Ultra60 running NetBSD 3.0 with two NICs: hme0
> and hme1. hme0 is connected to a Linksys ADSL router and hme1 to a
> Cisco 2924 and the LAN.
> What I'd like to do is add a QFE card and configure two agr interfaces:
>
> hme0 + qfe0 connected to the Linksys router.
> hme1 + qfe1 connected to the Cisco (LAN)
>
> Has anybody done this and does it work as advertised (tm) ?
I think the problem you'll have is support for 802.3ad on the Cisco (and
maybe the Linksys). As far as I can see, the 2924 (presumably 2924XL)
doesn't support link aggregation. Also, I'm not sure that adding extra
interfaces gives you much higher availability - usually a seperate box is
used for that with something like HSRP, VRRP or CARP so that both boxes
pretend to be a single machine.
J
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