Re: [Xen-users] Re: Live migration-delay in gratuitous arp

[Virajith Jalaparti <virajith.j@xxxxxxxxx>]

I had tried something similar earlier but it did not work. When even I 
run the script you sent, the atleast 10-15 of the consecutive pings 
don't receive any replies. I guess this implies that some thing is wrong 
with the ARP sending mechanism of the VM. Apparently, this issue was 
discussed earlier at 
http://lists.xensource.com/archives/html/xen-devel/2007-03/msg00268.html 
and they say that this is a bug in Xen-3.0.3 which is the version in the 
repos of CentOS 5.5.
Virajith

Jordan Pittier wrote:
> Hello,
> Try to run the following script from *another* dom0 in the same LAN. 
> This script could be considered as an "hack" to update the CAM table 
> of the switch : 
>
> #!/bin/bash
> if [ -z "$1" ]; then
>   echo "Error: give the DomU IP to ping as parameter."
>   exit 1
> fi
> HOSTNAME=$1
> while /bin/true;do
>         /sbin/ip neigh flush all &>/dev/null
>         ping -c1 -w1 $HOSTNAME 
>         sleep 0.2
> done
>
> Jordan
>
>
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