I am running a 3550 with 122-44.SE6. I am trying to implement 802.1x with MAC Authentication bypass (MultiHost), but the switch will not respond to any authentication commands I center when configuring an interface. Below is an example of how I would like to configure a interface, but the commands with authentication in the beginning responds with the message invalid input at the word authentication.
switchport mode access
authentication order dot1x mab
authentication priority dot1x mab
authentication port-control auto
authentication periodic
authentication timer restart 10800
authentication timer reauthenticate 7200
mab
no snmp trap link-status
dot1x pae authenticator
dot1x timeout quiet-period 2
dot1x timeout tx-period 3