Hi, I am sure this is easy question, but I'm not sure. Can someone explain me the role of MSFC and PFC modules. As I see it, MSFC add L3 routing, and without it, cat6500 is basically L2 switch. As I have read PFC adds L2-L4 services. But that is not routing, right ? What does that mean. Can someone explain me the difference in functionality between those confoigurations: Sup2+PFC Sup2+MSFC Sup2+MSFC+PFC thanks, j