Chapter 6. Network Layer

The protocols of the OSI model network layer specify addressing and processes that enable transport layer data to be packaged and transported. The network layer encapsulation enables data to be passed to a destination within a network (or on another network) with minimum overhead. In this chapter, we review the role of the network layer including the protocols, basic routing concepts, the role of the router, and configuring a Cisco router.

Network Layer Protocols

The network layer provides services to allow end devices to exchange data across the network. To accomplish this end-to-end transport, the network layer uses a set of protocols.

The Processes of the Network Layer

Describe the four basic processes of the network ...

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