link aggregation - bundling 2 lagg interfaces together
Bernhard Schmidt
bschmidt at freebsd.org
Fri Feb 4 12:45:12 UTC 2011
On Friday 04 February 2011 13:13:52 Damien Fleuriot wrote:
> Hello list,
>
>
>
> I have a firewall with 2x Intel pro dual port cards.
>
> On Intel A , port 1 goes to switch 1, port 2 goes to switch 2
> On Intel B , port 1 goes to switch 1, port 2 goes to switch 2
>
>
> I have created the following 2 lagg devices using LACP:
>
> lagg0 = A1 + B1
> lagg1 = A2 + B2
>
> This works fine.
>
>
> Now, what I had in mind was creating a lagg2 device using lagg0 and
> lagg1 with failover.
>
> That would provide redundancy in case of a switch failure.
>
> ifconfig won't let me though:
>
> # ifconfig lagg2 laggproto failover laggport lagg0 laggport lagg1
> ifconfig: SIOCSLAGGPORT: Invalid argument
>
>
>
> I suppose it's not possible to aggregate lagg interfaces ?
>
> That would shatter my dreams :(
I have no clue if that is at all possible, or makes any sense at all,
but can't you just add all 4 ports one lagg interface?
--
Bernhard
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