How is MAC masquerading configured.

MAC masquerading is configured at the VLAN level by specifying a shared MAC address for each VLAN on which you want the feature enabled. During failover, the newly active device immediately uses the same MAC address, so upstream switches do not need to update their ARP caches, which speeds up failover and reduces traffic disruption.

MAC masquerading is not assigned to individual self-IP addresses; it is applied at the VLAN level to cover all traffic on that network segment.

The MAC address is specified per VLAN in the active device's configuration and is synchronized automatically through the config-sync process, so manually synchronizing after setting it is not the correct procedure.

MAC masquerading is not tied to floating self-IP addresses; it is a VLAN-level setting that applies to the interface, not to IP address objects.