Port mode: A port on an interface card can be allocated to any VS.
Port group mode: All ports on the same forwarding chip of an interface card must be assigned to the same VS.
During assignment of VSs in port group mode, learn about the mapping between ports and forwarding chips to facilitate port planning. You can run the display device port-map [ slot slot-id ] command on the CE12800 to view the mapping between ports and forwarding chips.
VSs cannot communicate directly. If two VSs need to communicate, connect physical interfaces between the two VSs using cables and then configure services to enable them to communicate.