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Re: [Xen-users] Using bonding-device bond0 for Xen

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Using bonding-device bond0 for Xen
From: "Andreas Bach Aaen (AH/TED)" <andreas.bach.aaen@xxxxxxxxxxxx>
Date: Mon, 12 Sep 2005 16:53:58 +0200
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On Mandag 12 september 2005 16:41, Richard Mayer wrote:
> Hello,
>
> I'm still running into problems with bonding.
> When I boot the server, everything seems to be fine and I have no problems
> with network connectivity. I can reach XenU und also reach the outside
> world from XenU. However, after a while of doing nothing with the virtual
> Machines (about 10-15 minutes) the network connection is gone.
> I can't reach XenU anymore and when logging in through xm console I can't
> reach any other IP Address from within the XenU.
> Do you have any idea, what the reason for this behavour might be?

Does the domU freeze?
Does you DomU have it's root filesystem mounted via nfs?
Please make sure that you can ping any sizes of packages from the domU to your 
nfs server. You may need to set package sizes used by nfs down to a low value 
e.g. 1024 to make sure al packages are so small that you don't need IP 
fragmentation. Maybe you will need to lower you MTU of the eth0 interface 
inside the domU.
If you domU doesn't freeze or you don't use rootfs over nfs, then you probably 
need to look elsewhere for the source of your problems.

Regards,
-- 
Andreas Bach Aaen              System Developer, M. Sc. 
Ericsson Danmark A/S           tel: +45 89 38 51 00
Skanderborgvej 232             fax: +45 89 38 51 01
8260 Viby J      Denmark       andreas.bach.aaen@xxxxxxxxxxxx

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