decapsulated if it was determinted that the packet was destined to some
sim node on the same pnode. This was done at the entry point of the
packet from the live network. However, in the case of disconnected
partitions, the packet may have to exit the pnode one or more times
before reaching the final destination. In this case, the decapsulation
of it early is a waste. This commit remedies that by performing the
decapsulation in the port classifier of a node just before the packet
is given to a traffic agent that will consume the packet.