TCP Efficiency TELNET IS ONE OF MANY INTERNET SERVICES IMPLEMENTED USING TCP. WHEN YOU TYPE TEXT INTO AN NCSA TELNET WINDOW, IT IS SENT TO THE MACHINE YOU HAVE CONNECTED TO IN TCP PACKETS. WHEN THE MACHINE WANTS TO DISPLAY TEXT ON YOUR SCREEN, THE TEXT IS SENT IN TCP PACKETS. WHEN YOU TYPE A SHORT COMMAND ("PINE" == 4 BYTES), IT IS SENT IN A TCP PACKET WITHIN AN IP PACKET WITHIN AN ETHERNET PACKET. TCP HEADER = 20 BYTES IP HEADER = 24 BYTES ETHERNET HEADER = 26 BYTES TOTAL = 70 BYTES!!

The Web: Technologies and Techniques Links to other course pages: CS 105 Home Page CS 105 Lecture Schedule CS 105 On-line Discussion Group: All discussions Discussion relating to this lecture topic Williams College Department of Computer Science

This page is part of a section of lecture slides related to " The Transmission Control Protocol " within the topic "The Internet Protocol Suite". Other slides within this section and other sections of slides for the topic "The Internet Protocol Suite" can be accessed using the links below. The Internet Protocol Suite TCP/IP = The Internet Protocol Suite The User Datagram Protocol & Ports Port Numbers and UDP Port Numbers and UDP (cont.) Port Numbers and the Client/Server Model Implementing UDP The Transmission Control Protocol Reliability Best-effort Delivery Router Congestion TCP TCP Implementation TCP Efficiency TCP as Internet Transport Protocol The Domain Name Service Domain Names Domain Name Servers Reliability and Retransmission A Reliable Delivery Problem Cautious Generals Solving the General's Problem Connections (Virtual Circuits)