Re: [Xen-users] 'Wandering' eth interface - Xen 3.0.4 + linux 2.

To:	tim.post@xxxxxxxxxxx, "Xen users mailing list" <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject:	Re: [Xen-users] 'Wandering' eth interface - Xen 3.0.4 + linux 2.6.16.29
From:	TMC <tmciolek@xxxxxxxxx>
Date:	Tue, 1 May 2007 07:12:21 +1000
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My bad. I did forget that udev indeed does some persistance magic.

mac assignment works well.

Thanks for all the responses.

On 01/05/07, Tim Post <tim.post@xxxxxxxxxxx> wrote:

On Tue, 2007-05-01 at 01:09 +1000, TMC wrote:


> I have a Xen 3.0.4 with Debian Etch (4.0) running quite successfully...
>
> except for an annoying problem, which i have not observed in other
> DomU instances, nor have I observed it with my test server...
>
> The problem I am observing in that one domain is that on reboot, the
> eth interface seems to "wander" - that is  monotonically increase the
> index value...
>
> so on one reboot  it will be eth0 on next eth1, on one after that eth3
> and so on.
> Of course this causes all sorts of scripts to fail, and manual
> intervention is required.
>
> has anyone else seen this misbehaviour?
>
> Is there a method of pinning or making this behaviour consistent?
>
> Tomasz
>

You may want to imply a mac to eth scenario in udev if this problem
occurs mostly in guests with multiple nics.

I *think* I understand your problem but not quite sure. Try googling for
'xen udev mac nic' to see a  plethora of examples.

Best,
--Tim



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Re: [Xen-users] 'Wandering' eth interface - Xen 3.0.4 + linux 2.6.16.29