On Tue, Nov 29, 2005 at 11:03:28PM +0400, Bruno Carnazzi wrote:
> Hi all,
>
> I'm looking at the link aggregation feature (man trunk(4)) of OpenBSD
> 3.8. In my case, I'd like to use it on Ethernet interfaces : should
> the switch be configured in a special way or is it level-2 transparent
> ? I mostly use Cisco 2950 switches... What are the differences between
> 'round-robin' and 'none' protocol ? I've read this :
> http://www.onlamp.com/pub/a/bsd/2005/10/20/openbsd_3_8.html?page=1.
> This let me think that the configuration shown is a kind of "ARP load
> balancing" (1 IP@ for 2 MAC@). Am I right or it is something else
> (Virtual MAC@ or...) ?
>
>
>From my experience, trunk(4) doesn't require support from switches. In
case of round-robin, outgoing traffic is distributed through aggregated
NICs; incoming traffic is received from all aggregated NICs, which
requires support from switch, but doesn't break trunk(4)'s usability.
failover can be fully functional without switch support, and `none' just
disables traffic without destroying device.
(un)fortunately, i'm not experienced in Cisco's hardware ;)
- Lukasz Sztachanski
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