RE [Xen-users] Re: xen-3.0.4 networking problem after migration

[Alain BARTHE <alain.barthe@xxxxxxxx>]

xen-users-bounces@xxxxxxxxxxxxxxxxxxx a écrit sur
19/02/2008 06:30:54 :

> I reply to my post earlier. It was a problem on the configuration
file. 
> It appears that, when not using dhcp, live migration with static mac
> address would cause a problem to IP in migrated domU.

We are also using xen 3.0.x, we are not using DHCP,
we have static MAC address in our domU, and we never encountered such a
problem in live migrations.

Maybe another explanation ?

> 
> --Weikuan
> 
> Weikuan Yu wrote:
> > Hello,
> > 
> > I am facing an networking problem for xen migration. I used to
have it 
> > working fine. But as I worked with several trees, I lost track
on the 
> > correct configuration I should have.
> > 
> > The problem is as this, with xen-3.0.4 on CentOS-4.4. I can install
xen, 
> > start xend, and create domU, all fine.
> > # xend start (on both nodes)
> > # ssh node02 xend start
> > 
> > Then create a domU on node01
> > # xm create -c cvm.01
> > 
> > At this point, I can ping this domU from many different nodes
in the 
> > subnet. Then, I migrate it to node02
> > # xm migrate cvm.01 -l node02
> > 
> > Right after the migration, I can no long ping the domU. This
domU now 
> > can only be ping'ed from the new host, node02. Interestingly,
if I 
> > migrate the same domU back to node01. Pinging works fine again
from many 
> > different nodes.
> > 
> > Anybody has seen this before? I know xen-3.0.4 is old by now.
But want 
> > to avoid a new installation if possible.
> > 
> > Can somebody offer a hint? Any help is appreciated.
> > 
> > -- Weikuan
> > 
> 
> 
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