Re: KVM doesn't send an arp announce after live migrating a domain

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On Wed, Aug 25, 2010 at 01:59:02PM +0300, Gleb Natapov wrote:
> > Kvm is the most natural place to do that, I think, and it's
> > easy to implement there too (it has the tun device which can
> > inject packets on behalf of the guest)   Yes, the configuration
> > will be duplicated somehow, but that's not a big problem, and
> > it will make things much more reliable.
> > 
> KVM is certainly not the most natural place to do that. Even gratuitous
> ARP we have today will not work if guest changes mac address. KVM
> couldn't care less about host network protocols. Management may implement
Correction: "couldn't care less about _guest_ network protocols"

> guest daemon that will take appropriate action to restore networking
> after migration on demand (send gratuitous pigeon if IP over pigeons are
> used by guest).
> 
> --
> 			Gleb.
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--
			Gleb.
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