#set thernet-switching-options vlans <vlan-name> mac-table-aging-time 120 (in seconds)
#set ethernet-switching-options mac-table-aging-time 120
Are you wanting to set a different mac-aging timeout for each interface? If yes, then you may want to place interfaces requiring similar configurations in there own vlans.
I do not see an option to set a different timeout value per port. You Cisco state did show it being specific to any individual port.
