What Is the Network Layer?
In this lesson, we'll get a quick introduction to the network layer.
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Main Objectives & Key Responsibilities
The main objective of the network layer is to allow end systems to exchange information through intermediate systems called routers. The unit of information in the network layer is called a packet.
Limitations Of The Underlying Data Link Layer
Messages at the data link layer are called frames. There are more than a dozen different types of data link ...