Hi all,

On Wednesday 14 December 2011 16:41:28 Javier Cardona wrote:
> On Wed, Dec 14, 2011 at 8:48 AM, Bishal Thapa <[email protected]> wrote:
> > Hi Chun-Yeow,
> >  I agree and disagree. I agree in part, because I like the idea of one
> > single forwarding table (instead of "n" mesh path tables for "n"
> > interfaces) indicating which out-going interface for next-hop. But I
> > disagree about the bridge concept. There will be overhead specially if we
> > were to make this a scalable solution. Plus, the forwarding table that
> > goes with the bridge, I am assuming you mean ebtables. Ebtables lose the
> > advantage that our mesh tables have: If there are two entries for the
> > same destination, but leaving from two different interfaces, the airtime
> > metric, by definition, would enable picking the "better" interface. What
> > do you think? Did I misunderstand any/all of your suggestion?
> FWIW, currently there is only one single forwarding table per host.
> If there are multiple mesh interfaces, they all share that same table.
> There is no forwarding between mesh interfaces, but as I said, it
> would not be hard to implement.  The way I envisioned this working
> from userspace was to have a single mesh configuration parameter
> (mesh_iface_forwarding or something like that) that, when set, would
> enable forwarding between compatible mesh interfaces.
> And by compatible I mean in the 802.11s standard sense: same mesh id,
> same metric, etc. and not necessarily the same channel.
> But I'm not sure what would be the advantage of having another
> interface that combines all the compatible mesh interfaces. If
> mesh_iface_forwarding was enabled, one could use indistictly use any
> of the compatible mesh interfaces to send traffic.  Thoughts?

I work with Giovanni, who raised the point of supporting multi-radio 
operations. My vision is exactly that described by Javier: one single mesh, 
each mesh node has a single forwarding table and may have multiple interfaces, 
each of which is used to send traffic to a (possibly) distinct set of 
neighbors (depending on the channel assignment). There should be no need to 
use a bridge interface.

I confirm that it is our interest to implement such functionality and we would 
be glad to coordinate our efforts with anyone else is interested (Bishal?)

Cheers,
Stefano

> Cheers,
> 
> Javier


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