January 2008
Intermediate to advanced
624 pages
14h 16m
English
In this chapter: |
There are two protocols at the Transport Layer that TCP/IP applications typically use for transporting data: Transmission Control Protocol (TCP) and User Datagram Protocol (UDP). This chapter describes the characteristics of UDP and the fields in the UDP header.
UDP, defined in RFC 768, has the following characteristics:
Connectionless. Nodes send UDP messages, consisting of a UDP header and a message, without having to negotiate a connection between communicating peers.
Unreliable. Nodes send UDP messages as datagrams without sequencing or acknowledgment. The Application Layer protocol ...