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Re: [Xen-users] e100 + Xen + VLAN -> VLANs don't work?

To: Daniele Palumbo <daniele@xxxxxxxxxxxx>
Subject: Re: [Xen-users] e100 + Xen + VLAN -> VLANs don't work?
From: Tomasz Chmielewski <mangoo@xxxxxxxx>
Date: Fri, 02 Feb 2007 16:13:11 +0100
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Daniele Palumbo wrote:
On Friday 02 February 2007 15:46, Timo Benk wrote:
Additionally, it is necessary for me to set the MTU inside the Domain-U to

with tg3, bnx2, 3c59x is not necessary.
i think that it is not necessary at all, if you use xen > 3.0.2.
in 3.0.2 there was an upper limit in MTU, in both front and back driver.

I use Xen 3.0.4.

there is also a patch (find my post).
BTW, changing MTU to 1492 is not IMHO a good way to workaround.

Which doesn't work for me on 100 Mbit cards (1 Gbit cards don't need any workarounds).

Which leads me to a question: those for whom VLANs work with 100 Mbit cards - do you set it up in dom0, or in domU?
Setting up a VLAN in domU is a wrong approach.

VLANs should be configured only in dom0, and should work transparently for domUs (which works for me with 1 Gbit cards, but not with 100 Mbit cards).

Tomasz Chmielewski

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