HA does not work for SMTP service

[David Lang]

then what is special about the virtual MAC address? that's the same
procedure that we do to failover an IP address to a different MAC address.

David Lang

On Mon, 24 Feb 2003, Alan Robertson wrote:

> Date: Mon, 24 Feb 2003 18:21:01 -0700
> From: Alan Robertson <alanr at unix.sh>
> To: David Lang <david.lang at digitalinsight.com>
> Cc: Horms <horms at verge.net.au>, linux-ha at muc.de
> Subject: Re: HA does not work for SMTP service
>
> David Lang wrote:
> > also the recognition of virtual MAC addresses by network hardware is far
> > from complete.
> >
> > if the VMAC is never stored that means that you need to do an ARP
> > broadcast for every packet you send to that host. I could see that eating
> > up a LOT of your network.
>
> What we do is just send out a broadcast ARP request, and a broadcast ARP
> reply.  Doing this several times when you bring up the interface seems to
> work quite well.  Once you've sent out a few such packets, that' all you
> need to do.
>
>
> 	-- Alan Robertson
> 	   alanr at unix.sh
>
>
> --
>      Alan Robertson <alanr at unix.sh>
>
> "Openness is the foundation and preservative of friendship....  Let me claim
> from you at all times your undisguised opinions." - William Wilberforce
>