I am building a new server room and have chosen to use the 4948 switch as a top of the rack switch. I have 2 6504's that act as distribution layer switches and they connect to the Core switches. I have 3 rows of racks in the new room and 4 racks in each row. I have 2 4948 switches in each row and am using the 2 switches in each row as redundant switches. When I try to build a 2 port etherchannel (L2) when I configure the second EC the first one goes err-disabled and tells me I have misconfigured the etherchannel. My question is "can I build 2 layer 2 Etherchannels on a single 4948? One of the EC is connected to the A-6504 and the other is connected to the B - 6504.