Etherchannel on 3550-12T GBIC and 10/100/1000

[m-menozzi]

I have been asked if it is possible to configure on this switch an etherchannel composed by port 10/100/1000 and GBIC port.

Initially I thought yes at all, but after looking at documentation I have seen a strange picture where it shows you that GBIC can form a layer 2 etherchannel only between themselves and you need a Portchannel interface to bind it with another channel on the 10/100/1000 ports.

Could anybody clear myself this thing ?

Thanks

[fmeetz]

I'm pretty sure that's correct. You need a portchannel interface to bind it with another channel on the 10/100/1000 ports.

[Prashanth Krishnappa]

You are correct. The Media type of the members has to be the same. So you cannot have a member from 10/100/1000 and a 1000 base SX in the same channel group

http://cio.cisco.com/univercd/cc/td/doc/product/lan/c3550/1219ea1/3550scg/swethchl.htm#xtocid2

[m-menozzi]

Thanks to everybody for the clear confirmation.

Marco