Re: [Xen-users] .1q trunks

[Simon Hobson <linux@xxxxxxxxxxxxxxxx>]

Mike Richardson wrote:

> The Dom0 has two physical interfaces, one as an 'access' port (I'll 
> be using Cisco
> terminology) and the other is a .1q trunk for up to 150 VLANs (don't ask,
> long story).
I can guess

>  Some of the VLANs on this trunk are for managing the DomUs and
> as such I've created interfaces and bridges for each. The rest I want to
> pass on, as a trunk, to a DomU.
>
> The DomU will have a management interface which connects to one of the above
> management bridges and it should also have an interface connected to the
> trunk. I want to be able to listen to all the broadcast traffic on that
> trunk.
>
> I've tried treating each VLAN as an individual interface on the Dom0 but I
> can only get the DomU to connect to about 30 of them. Thus I'd need 5 DomUs
> at least to handle all the VLANs, which isn't a nice solution.
AFAICT, Linux bridges don't support tagged traffic. My reading 
suggests that Open vSwitch does (and lots more). It may be worth 
looking into that.
--
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
Christmas stocking fillers. Some available as e-books.

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