Chapter 7. Domains and Protocols
7.1. Introduction
In this chapter we describe the Net/3 data structures that support the concurrent operation of multiple network protocols. We’ll use the Internet protocols to illustrate the construction and initialization of these data structures at system initialization time. This chapter presents the necessary background material for our discussion of the IP protocol processing layer, which begins in Chapter 8.
Net/3 groups related protocols into a domain, and identifies each domain with a protocol family constant. Net/3 also groups protocols by the addressing method they employ. Recall from Figure 3.19 that address families also have identifying constants. Currently every protocol ...
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