RE: [Xen-users] DomU after migration

["Petersson, Mats" <Mats.Petersson@xxxxxxx>]

> -----Original Message-----
> From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx 
> [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of 
> mail4dla@xxxxxxxxxxxxxx
> Sent: 13 June 2007 17:08
> To: xen-users@xxxxxxxxxxxxxxxxxxx
> Subject: [Xen-users] DomU after migration
> 
> Hello all,
> 
> I did some tests with DomU live migration and it worked quite well :-)
> However, there remains one question: Is it possible to 
> (reliably) get programatically aware of the DomU's ID on the 
> host it is migrated to? 

You mean besides logging into the Dom0 of the new machine and parsing
the output of "xm list" or similar? Not sure that there is any easy way
to do this. 

> Could anybody give me a hint how the NIC frontends are 
> created and configured after migration, e.g., are the network 
> scripts called or is a different mechanism invoked?

As far as I know, in PV-domains, it works by sending some new ARP
messages to the network, and that will make any switches/routers realize
that there is a new location for the IP address of the migrated domain. 

Not entirely sure how it works on HVM domain. 

--
Mats
> 
> Regards,
> dla
> 
> 



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