We (VirtualIron) do support jumbo frames - but currently only for iSCSI traffic to dom0 - not for inter-domain communications... ie - not over the bridge/vif. So - I'm not sure that this is what you're talking about here...

Pasi Kärkkäinen wrote on 06/17/2008 08:28 AM:

On Tue, Jun 17, 2008 at 09:07:23PM +1000, James Harper wrote:

Hi!

Have you thought about adding jumbo frame support (mtu 9000) ?

There was some discussion about this earlier, but I guess there was no
conclusion.. obviously this feature needs configuration on dom0 too
(vif,bridge,peth).

Yes I've thought about it, but I don't think it's supported by netback 
so there's not a lot I can do. I think some changes need to be made so 
that netback and netfront/gplpv can tell each other the MTU in use.


Hmm.. OK. 

Somehow I thought some Xen implementation (Citrix XenServer or VirtualIron)
supported jumbos.. but I'm not sure about that. I'd have to check again.

Does someone else have more information about this? 

-- Pasi

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