Packet forwarding is a form of IP routing where the forwarding device reads the source and destination IP addresses, checks to see which interface it should transmit the packet on, and sends the packet there.
The benefits of packet forwarding include security and control, as well as cost efficiency. The network has a much lower chance of being hacked, as well as the ability to specify who can access the network.
The three main switching methods that Cisco has used over the last 20 years are process switching, fast switching, and Cisco Express Forwarding (CEF).
In the seven-layer OSI model of computer networking, the network layer is layer 3. The network layer is responsible for packet forwarding including routing through intermediate routers.
Packet forwarding is a technology that sends packets from one network to another network.
The routing process is done by a router or an IP packet filter. The router or IP packet filter examines the destination address of the packets and then forwards them to the destination networks towards their final destinations.
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