CFT: new trunk(4)

Ian FREISLICH ianf at clue.co.za
Wed Apr 11 13:43:41 UTC 2007


Andrew Thompson wrote:
> On Mon, Apr 02, 2007 at 11:17:29AM +0200, Ian FREISLICH wrote:
> > Andrew Thompson wrote:
> > > Here is a patch to add OpenBSD's trunk(4) interface, and also includes
> > > LACP support which came from agr(4) on NetBSD.  Im interested in anyone
> > > who wants to test this and in particular lacp mode if you have a switch
> > > that supports it. 
> > > 
> > > http://people.freebsd.org/~thompsa/if_trunk-20070330b.diff
> > 
> > This looks very interesting.  I'm busy testing with a switch that
> > claims 802.3ad support.
> > 
> > We're making extensive use of vlans to increase the number of
> > interfaces availabble to us using switches to break out gigE into
> > 100M interfaces.  The bandwidth problem we're having is to our
> > provider, a 100M connection, and we're looking at doing exactly
> > this.  However, it appears that this interface can't trunk vlan
> > interfaces.
>
> It sounds like you want it the other way around. The trunk should
> be the lowest component in any setup so you should vlan the trunk
> interface rather than trunk a vlan.

No, I'm sure I want it the way I said.  I know it sounds wrong, but
I just don't have enough PCI-X slots to waste 2 on physical 100M
NICs for the uplink from the routers.

Ian

--
Ian Freislich



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