A Reliable Delivery Problem IMAGINE TWO GENERALS TRYING TO COORDINATE AN ATTACK ON AN ENEMY FORTRESS. IF THEY ATTACK SIMULTANEOUSLY, THE SIZE OF THE COMBINED FORCE WILL ASSURE A VICTORY. IF EITHER ATTACKS WITHOUT THE OTHER, THE 1/2 ARMY INVOLVED WILL BE OUTNUMBERED AND DEFEATED. NOW, SUPPOSE THEY CAN ONLY COMMUNICATE USING MESSENGERS WHO (UNFORTUNATELY) ARE OCCASIONALLY KILLED ENROUTE.

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This page is part of a section of lecture slides related to " Reliability and Retransmission " 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)