March 2000
Intermediate to advanced
632 pages
18h 6m
English
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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 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.