Re: agr(4) + bridge(4): problems!

[Hugo Silva <hugo%barafranca.com@localhost>]

On 09/28/12 15:52, Manuel Bouyer wrote:
> On Fri, Sep 28, 2012 at 09:57:11AM -0400, Thor Lancelot Simon wrote:
> > On Fri, Sep 28, 2012 at 02:49:46PM +0200, Manuel Bouyer wrote:
> > > You mean, for agr+bridge ?
> > > I suspect link1 is causing the issue you're seeing: without any LACP
> > > negotiation, a packet going out by wm0 will be received on wm1, and
> >
> > Why?  wm0 and wm1 aren't in the bridge, and if you have LACP turned off
> > entirely, the host on the other end must be configured so it doesn't
> > reflect packets this way, either.
>
> But in his setup, if I understood it properly, the other end is a switch,
> which probably can't deal gracefully with this setup.

It is indeed a switch without support for LACP. The manpage does say 
link1 disables LACP.

Note that the network works fine on the dom0 using agr0, it's only when 
agr0 is on a bridge that problems appear (and even then the host's 
networking, running with agr0 as the primary interface, still works). I 
mention this because if the issue was just LACP, I can't see why the 
dom0 networking would work as expected.

So perhaps there is a unhandled situation somewhere? For instance, would 
agr(4) without link1 and bridge(4) work together?


Regards,

Hugo