• All licenses enabled on the IM ports are removed.

• The free licenses can be associated with the same or different IM ports.

• When IM is inserted back in the same slot, the IM ports require the licenses based on the configurations.

• The available free licenses are used and old configurations are retained.

• When free licenses are not available, the controller port moves to "shut" state and the following error message is displayed:

  Controller port does not have license so putting it into shut state. Un-shut after enabling license or remove controller port configuration

• To remove the "shut" state, perform any one of the following actions:

  • Remove all the configurations present at rate level and beyond.

  • Enable the license on the port that has the same rate as that of the configured controller. For example, enable OC3 license for any OC3 configuration to remove the "shut" state.

  Thus, port configurations remain intact and controller port re-configuration is not required.

enable
 show license udi
Convert the PAK to a license by entering the PAK and the UDI into the Cisco Product License Registration portal: http:/​​/​​www.cisco.com/​​go/​​license
license install stored-location-url
show license detail
end

enable
configure terminal
platform enable controller MediaType 0/4/16 oc3
controller MediaType 0/4/16
mode sonet
exit
controller sonet 0/4/16
rate oc3
exit

enable
configure terminal
controller sonet 0/4/16
sts-1 1
no vtg 1 t1 1 cem-group 23 unframed
no mode vt-15
controller MediaType 0/4/16
no mode sonet
exit
no platform enable controller MediaType 0/4/16 oc3

enable
configure terminal
controller mediatype 0/4/0
mode t1
exit
controller t1 0/4/0
clock source internal
framing esf
cablelength short 110
linecode b8zs
no shutdown
exit