The system validates the number of license entitlements against the IOC modules present and assigns the licenses sequentially to the I/O slots, starting from slot 1 to slot 8.
If you install a module in a slot that has a license assigned and later, when the module is moved to another slot that does not have a license assigned, you can reassign the license to the new slot by using the license-grant command.
Load the license on the specified slot and enable the ports on the IOC module:
Switch:1>enable Switch:1#configure terminal Switch:1(config)#license-grant slot 2 License granted for slot: 2 Switch:1(config)#