What is the equivalent IOS switch command for the Catalyst 6509 CAT OS <set port security> command.on other IOS switches like the 3550 series there is a command - switchport port-security. i need to know the command on CAT6509

What is the equivalent IOS switch command for the Catalyst 6509 CAT OS <set port security> command.on other IOS switches like the 3550 series there is a command - switchport port-security. i need to know the command on CAT6509