To set up a Fast Etherchannel we must configure each of the ports exactly the same. They must be in the same VLAN, the same spanning tree parameters, the same duplex method, the same speed, and so forth. There is also one other requirement that is difficult to obtain from documentation, ALL PORTS IN THE CHANNEL CANNOT BE TRUNKS. If any of the ports we wish to configure in the Channel are set to trunk the Channel will not work. This does not mean we cannot trunk over the Fast Etherchannel, it sim