[Xen-users] Xen live migration: from where is the ARP sent?

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Subject:	[Xen-users] Xen live migration: from where is the ARP sent?
From:	Virajith Jalaparti <virajith.j@xxxxxxxxx>
Date:	Fri, 11 Mar 2011 17:48:19 -0600
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Hi,

I was hoping someone could help me out with a question I had about thelive migration of Xen.I am trying to perform live migration of a VM using Xen 3.4.3. Whenparavirtualization is used, a gratuitous arp is sent out after the VM isrestored at the new location (I did not find such an arp being sent whenthe VM is fully virtualized). Is this arp sent out by xen (thehypervisor) or the modified operating system? If the arp is sent by xen,which part of the xen code (which file?) actually sends out this arp? Ifthe arp is not sent by xen, is it possible to send an arp from xenrather than the OS? I think we would require to know the IP address andthe MAC address of the VM for this purpose.

Thanks,
Virajith

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[Xen-users] Xen live migration: from where is the ARP sent?