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

To: Tomasz Chmielewski <mangoo@xxxxxxxx>
Subject: Re: [Xen-users] e100 + Xen + VLAN -> VLANs don't work?
From: Timo Benk <timo.benk@xxxxxx>
Date: Fri, 02 Feb 2007 16:12:26 +0100
Cc: Daniele Palumbo <daniele@xxxxxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxx
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Tomasz Chmielewski wrote:
> Timo Benk wrote:
> (...)
>> Script:
>> #/bin/bash
>> brctl delif xenbr0 peth0
>> brctl delif xenbr0 vif0.0
>> ip l s xenbr0 down
>> brctl delbr xenbr0
>> brctl addbr vlan10
>> brctl addbr vlan20
>> brctl addbr vlan30
>> ip l s vlan10 up
>> ip l s vlan20 up
>> ip l s vlan30 up
>> modprobe 8021q
>> vconfig add peth0 10
>> vconfig add peth0 20
>> vconfig add peth0 30
>> ip l s peth0.10 up
>> ip l s peth0.20 up
>> ip l s peth0.30 up
>> brctl addif vlan10 peth0.10
>> brctl addif vlan10 vif0.0
>> ip l s eth0 mtu 1496
> Hmm, you sure you didn't change anything / pasted the whole script?
> # /etc/init.d/xend start   # (empty network-script)
> # bash -x script.vlans
> + brctl delif xenbr0 peth0
> interface peth0 does not exist!
> + brctl delif xenbr0 vif0.0
> interface vif0.0 does not exist!
> + ip l s xenbr0 down
> SIOCGIFFLAGS: No such device

Of course this script assumes that there is already a bridge set up
inside Domain-0, Default bridge xenbr0 with two interfaces vif0.0 and
peth0. That explains the errors.

> Question: do you set up VLANs in domU as well? I hope not, this is a
> wrong approach to VLANs.
No vlan setup inside the domSs. Just the MTU was changed in the

Timo Benk - Jabber ID: fry@xxxxxxxxxxxx - ICQ ID: #414944731
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