Router Congestion IN FACT, IP DOES DELIBERATELY (BUT NOT FOOLISHLY) THROW AWAY MANY PACKETS. IMAGINE A ROUTER CONNECTED TO THREE NETWORKS A,B & C. IF A AND B START SENDING TO C AS FAST AS THEY CAN, THE ROUTER MAY DEVELOP A BACKLOG. IF THE ROUTER RUNS OUT OF ROOM FOR BACKLOGGED PACKETS IT WILL HAVE TO START THROWING THEM AWAY!

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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)