Re: [libvirt-users] Restarting network on host completely cuts off guests. Why? How to prevent?

On 04/17/2010 09:38 PM, Andreas Ntaflos wrote: > Hi list, > > this probably isn't a completely libvirt-specific question but I'll > try anyway. Please ignore if it is too much off-topic. > > On an Ubuntu (9.10) virtualisation host, running KVM and libvirt > and several guests (Debian, Ubuntu, Windows Server 2003) in a > bridged network fashion [1,2] I noticed that performing > > /etc/init.d/networking restart > > on the host completely cuts off all guests from the network. I have > to manually shutdown and restart (virsh shutdown GUEST && virsh > start GUEST, a mere reboot doesn't suffice) them to get them onto > the network again. Obviously that's not ideal. > > Is this the expected behaviour? Can I somehow re-establish guest > network connectivity without shutting down the guest first? Is my > setup somehow wrong or do I expect too much? Unfortunately, that is the expected behavior. If you do: