> -----Original Message-----
> From: owner-portmaster-users@livingston.com
> [mailto:owner-portmaster-users@livingston.com]On Behalf Of Jason
> Campbell
> Sent: Tuesday, May 25, 1999 11:32
> To: portmaster-users@livingston.com
> Subject: (PM) arp cache clearing/timeout on PM2
>
>
> I'm having trouble making a rudimentary web server failover solution
> work because the arp cache on our PM 2e (ComOS 3.1.3) takes *so* long
> to timeout. When I simulate a failure of our primary server, the
> second server aliases the first server's IP properly and all of our
> local workstations can access it just fine, but the Portmaster doesn't
> re-arp for the failed server for nearly an hour. Of course, during
> that time all of our remote users are cut off completely, even though
> the second server has already stepped in.
>
> Nothing I've tried short of power-cycling the Portmaster seems to
> cause it to flush that arp cache entry. (Including the obvious and
> usual pinging of the PM from the first-server's IP on the second
> server.) Searching the manual, the pm-users archive, and the web at
> large hasn't yielded any solutions either.
>
> I'd appreciate anything anyone can suggest. Ideally I'd like to
> either drastically shorten the cache timeout (to 5 minutes or so), or
> find a way to have the second server flush the Portmaster's arp cache
> once it goes into failover mode.
>
> Clearly we're quite far backlevel on ComOS, and we ought to think
> about upgrading that, but I'm reticent to just blindly change something
> that a) works now, and b) is so integral to our Internet connectivity
> without any indication that the change will help. So if anyone has an
> idea as to whether 3.7.? might fix this, that would help too.
>
> Thanks very much, in advance,
>
> Jason Campbell
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