Chapter 10

Data-Link and Network Layer Protocols

In This Chapter

  • Topologies
  • Ethernet communication architecture
  • TCP/IP

pro·to·coln : a set of rules that governs how communication should occur

In Chapter 8, “A Communications Framework,” you learned about the OSI model. The Data-Link layer includes the physical network hardware and transmits data onto the network. The two layers of this model that are responsible for moving data over an internetwork are the Network and Transport layers.

The Network layer of the OSI model determines the best route that a packet should take when it needs to be delivered over an internetwork. The Transport layer is primarily responsible for reliable data delivery.

At both layers, protocols must be designed to fulfill ...

Get IT Career JumpStart: An Introduction to PC Hardware, Software, and Networking now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.