I was at a customer site yesteday trying to setup a etherchannel trunk between the 6500 and a WLAN controller. We setup the L2 port channel fine,but under the gig ports the command "switchport trunk encapsulation dot1q" was not available. We were able to do a "swithport mode trunk" and the trunk looked like it was up and fine but I could not pass traffic. Other ports on the other blades are in L2 portchannel trunks as well, and they have the command. And if we configured a port on one of the other blades we could type the command in. Just not on the blade the WLAN controller was plugged into. Not sure of the IOS version. Anyone ever see this?