04-29-2020 03:55 PM
I setup a pair of 2110s (6.5.0.4) in HA that are managed by an FMC w/ a port-channel facing the LAN and a single outside interface for now. I set the port-channel and the outside interface to use a virtual mac address for the active and standby units. I don't have any standby ip addresses defined for either. I've noticed that while the interfaces are up/up on the core, I'm not seeing the standby mac address on the switch it's connected to. if I failover the active mac is populated where I'd expect it to be, but curious as to why the standby isn't there. On a similar setup w/ a pair of ASAs i do see it so I'd expect the same.
10-27-2022 08:01 AM
I know that this is a very old post, found useful for my needs, but, i think the original question was that you cannot see the secondary virtual MAC for the standby unit.
You did not assign a secondary IP address for the the interface. Therefore, the need for a MAC address is unnecessary and although connected to a switch, it is not sending nor receiving any frames and therefore does not need to announce it's MAC address. The standby unit uses the standby IP.
From the original post:
"I don't have any standby ip addresses defined for either."
if you assign a standby address, you will see the standby virtual MAC address live on the port expected. I do recommend using a standby address to enable better interface monitoring for failover.
10-27-2022 08:08 AM
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