Forwarding's doDropFlow() changed to not base Match on OFPacketIn, which it shouldn't in the first place. We need to first deserialize the packet and use its header attributes. TODO: How much is too much to match on? Sometimes we want a very specific match by default. Other times, we don't. The former creates a larger flow table, while the latter might inadvertently match packets that we don't intend to. Perhaps this should be a user-configurable option? Such as net.floodlightcontroller.Forwarding.matchLayer=L2, L3, or L4?