I was wondering what is the diffrencebetween 10G X2 and 10G Xenpack and is it possible to interconnectWS-X4606-X2-ECatalyst 4500 E-Series 6-Port 10GbE (X2) to a WS-X6704-10GE= Cat6500 4-port 10 Gigabit Ethernet Moduleeventhough the connector option...