Packet Forwarding – Process Switching

It is important to understand that the router does this for every packet, even if the destination is the same for a stream of packets

This is a older packet forwarding mechanism still available for Cisco routers

When a packet arrives on an interface, it is forwarded to the control plane where the CPU matches the destination address with an entry in its routing table, and then determines the exit interface and forwards the packet

The Entire address is loaded before forwarding in the approach