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Cisco Networking Essentials by Troy McMillan

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Exploring Network Access Layer Protocols

Protocols of the Network Access layer can be categorized as either LAN protocols or WAN protocols. These protocols use some sort of information to identify the individual hosts in a LAN and to identify the endpoints in a WAN. MAC addresses are an example of this, but not the only example. In this section, both types of Network Access layer protocols are covered.

Because the Network Access layer of the TCP/IP model includes the functionality of the Data-Link layer of the OSI model, protocols at this layer are often referred to as Data-Link layer protocols.

Defining Network Access Layer Protocols on the LAN

A number of technologies have been used to connect computers on a LAN through the years. At the ...

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