Cisco Catalyst 3650 Series

Examples
This example shows how to enable a persistent MAC address:
Device(config)# stack-mac persistent timer
You can verify your settings by entering the show running-config privileged EXEC command. If enabled,
stack-mac persistent timer is shown in the output.
Command Reference, Cisco IOS XE Everest 16.5.1a (Catalyst 3650 Switches)
876
stack-mac persistent timer