O'Reilly logo

Computer Busses by William Buchanan

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

24

TCP and UDP

24.1 Introduction

TCP, ICMP and IP are extremely important protocols as they allow hosts to communicate over the Internet in a reliable way. The TCP layer is defined by RFC793 and RFC1122, ICMP by RFC792 and the IP layer by RFC791. TCP provides a connection between two hosts and supports error handling. This chapter discusses TCP in more detail and shows how a connection is established and then maintained. An important concept of TCP/IP communications is the usage of ports and sockets. A port identifies the process type (such as FTP, TELNET and so on) and the socket identifies a unique connection number. In this way, TCP/IP can support multiple simultaneous connections of applications over a network.

The IP header is added to higher-level ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required