Identification of enable packets

Identification of enable packets
The NFFC or PFC watches packets coming from the MLS-RP
and tries to match them with candidate packet entries. If matches are made, the packets are
tagged as enable packets and a shortcut forwarding entry is made in the CAM table. This shortcut
tells the switch how to duplicate the effect of routing. Everything that the router did to the
packet, the switch is now able to do.