How to connect to cisco catalyst switch using LACP LAG

The commands are very similar. Here are a couple links that detail the steps.

http://www.cisco.com/en/US/tech/tk389/tk213/technologies_configuration_example09186a0080094470.shtml

http://www.cisco.com/en/US/products/hw/switches/ps663/products_configuration_example09186a0080094aec.shtml

Example of setting ports into a LAG with LACP, would look similar to this.

(config)#interface gigabitEthernet 1/1
(config-if)#channel-group 1 mode active
(config-if)#interface gigabitEthernet 2/1
(config-if)#channel-group 1 mode active

Then to set it Trunk mode run these commands.

(config-if)# interface port-channel 1
(config-if)# switchport mode trunk

I believe that depending on the model and version of OS on the switch, these commands may differ some. So I would double check the documentation.