Chapter 2. Data Link Layer Issues
This chapter discusses data link layer issues that affect bridges and routers. One issue is whether service provided by the data link layer should be reliable or datagram-oriented. Another is how to have multiple network layer protocols coexist on a link. When a node receives a packet, how can it tell which protocol suite originated the packet? Although the chapter also discusses many aspects of LAN technology, a fascinating topic, it is not meant to be a detailed reference on LANs. Rather, it explains those aspects of LANs in general, or of specific LAN technologies, that affect the bridging and network layer protocols.
Generic LANs
What Is a LAN?
When people use the term LAN, they may refer to any of a number of ...
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