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

To:	Virajith Jalaparti <virajith.j@xxxxxxxxx>
Subject:	Re: [Xen-users] Xen live migration: from where is the ARP sent?
From:	Todd Deshane <todd.deshane@xxxxxxx>
Date:	Sat, 12 Mar 2011 15:37:12 +0000
Cc:	Xen User-List <xen-users@xxxxxxxxxxxxxxxxxxx>, xen-research@xxxxxxxxxxxxxxxxxxx
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On Fri, Mar 11, 2011 at 11:48 PM, Virajith Jalaparti
<virajith.j@xxxxxxxxx> wrote:
> Hi,
>
> I was hoping someone could help me out with a question I had about the live
> migration of Xen.
> I am trying to perform live migration of a VM using Xen 3.4.3. When
> paravirtualization is used, a gratuitous arp is sent out after the VM is
> restored at the new location (I did not find such an arp being sent when the
> VM is fully virtualized). Is this arp sent out by xen (the hypervisor) 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? If the arp is not sent
> by xen, is it possible to send an arp from xen rather than the OS? I think
> we would require to know the IP address and the MAC address of the VM for
> this purpose.
>

Maybe a search through the code would be helpful:
http://lxr.xensource.com/lxr/search?string=arp


Thanks,
Todd

> Thanks,
> Virajith
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
>



-- 
Todd Deshane
http://www.linkedin.com/in/deshantm
http://www.xen.org/products/cloudxen.html

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