Failover time
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How long does/should it take for the backup to take over and route traffic?
The backup becomes master quickly but it lags a couple of minutes before traffic starts to go through again.
Is this a problem with the switch arp cache and the virtual IP changing it's MAC address?
Thanks,
Peter
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The virtual IP has it's own MAC, so the arp cache shouldn't be a problem. Generally you see a few missed pings, but nothing near a couple of minutes. I've had heavily used systems switch to the backup without anyone noticing.
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Failover will occur in under 5 seconds. Could be an issue with your switch where it won't allow the active CARP MAC on the other port until X minutes have passed. The MAC doesn't change, but a MAC moving from one port to another could be a problem depending on your switches and how they are configured.