ABSTRACT
The chapter is organized as follows. We begin by describing the role of protocols in the Internet architecture (Section 3.2) and then proceed to sum marize the foundational elements of the Internet, several classes of names (Section 3.2.2), and how Internet packets are forwarded from source to desti nation (Section 3.2.5). Section 3.2.6 discusses the service that the Internet Protocol offers to higher layers, which then leads to a discussion of the cur rent Internet Protocol (Section 3.2.7). Additional transport protocols are cov ered in Section 3.3.
