CHAPTER 10 User Datagram Protocol
What You Will Learn
In this chapter, you will learn about UDP, one of the major transport layer protocols in the TCP/IP stack. We’ll talk about datagrams and the structure of the UDP header.
You will learn about ports and sockets and how they are used at the transport layer.
The User Datagram Protocol (UDP) is one the major transport layer protocols that rides on top of IPv4 or IPv6. Most explorations of the TCP/IP transport layer treat the other major protocol, the connection-oriented Transmission Control Protocol (TCP) first and present connectionless UDP later. But the complexities of TCP, and the reasons for these often sophisticated procedures, are better understood after appreciating the basic connectionless ...