openstack team mailing list archive

[Nathanael Burton <nathanael.i.burton@xxxxxxxxx>]

On Dec 17, 2012 2:05 PM, "Xin Zhao" <xzhao@xxxxxxx> wrote:
>
> Hello,
>
> I allocate 2 public ips to instances, the first one becomes accessible
almost immediately, but the second one
> always take a long time to be pingable. It doesn't matter which specific
IP is assigned first or second, it's always
> the second one that is slow to be reachable, although the corresponding
iptable rules are all set on the controller
> node almost immediately.   Has anyone seen similar behavior?
>
> I am using essex (2012.1) on RHEL6.
>
> Thanks,
> Xin
>
>
>
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Xin,

You may need to use send_arp_for_ha=true to send a gratuitous ARP if you're
using multi-host networking.

Nate