Re: [lvs-users] Windows fail over ARP issue

To: " users mailing list." <lvs-users@xxxxxxxxxxxxxxxxxxxxxx>
Subject: Re: [lvs-users] Windows fail over ARP issue
From: "Robin Bonin" <rbonin@xxxxxxxxx>
Date: Thu, 17 Jan 2008 09:06:53 -0600
"The new active director has to send out gratuitous arp messages." I
get that now...
The new director should do that.. but it isn't or the command it not working.
Any idea how I can debug this further? are the send_arp commands in a
script somewhere I can look at?


On Jan 17, 2008 7:14 AM, Joseph Mack NA3T <jmack@xxxxxxxx> wrote:
> On Wed, 16 Jan 2008, Robin Bonin wrote:
> > When the second load balancer takes over the first, the second server
> > takes over the virtual IP addresses,
> > but the windows server is still trying to route it's traffic through
> > the first load balancer. (I can tell my running a trace route)
> >
> > If I clear the APR by calling arp -d *, it fixes the problem.
> >
> > Is this the same arp issue that I see tons of other post about?
> close, no, it's another one. The DIP on the director has to
> move to the new active director and it has to send out
> gratuitous arp messages (send-arp does this for you) to
> flush the entry in the realservers arp cache
> Joe
> --
> Joseph Mack NA3T EME(B,D), FM05lw North Carolina
> jmack (at) wm7d (dot) net - azimuthal equidistant map
> generator at
> Homepage It's GNU/Linux!
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