Re: [Xen-users] Switches and a moving MAC address

["Dirk H. Schulz" <dirk.schulz@xxxxxxxxxxxxx>]

Andreas Bach Aaen (AH/TED) schrieb:

> Hi,
>
> I have a succesfull XEN 2.06 installation with a DomU running with it's rootfs 
> over NFS. I can migrate this GuestOS between hosts on the same switches 
> network. I connect to my GuestOS over tcp (ssh).
> The transfer of the GuestOS takes about 4 seconds, and with the live option it 
> should be for a very short period where the GuestOS actually is stopped.
> After the transfer it takes 20-30 seconds before the GuestOS becomes 
> responsive again. Which kind of timeout it this?
> When you move an IP address to another MAC address you typically send out an 
> unsolicited ARP to update the arp caches on the other hosts on the network to 
> ensure correct routing at once.
> Are there any similar thing I could do to make sure that the switch will 
> broadcast the next packet for the MAC address that suddenly has moved to 
> another port?
>  
Do you migrate your domU together with a fixed MAC address or is it 
chosen by xend?
Dirk

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