Analyzing the Receiver Window Modification Scheme of TCP Queues

– Explicit Congestion Notification (ECN) and Active Queue Management (AQM) Schemes such as Random Early Detection (RED), Adaptive Random Early Detection (ARED) and BLUE queues have been proposed for TCP/IP networks to compensate network congestion. However, using ECN requires that ECN be supported by both TCP senders and receivers. This paper presents a novel AQM modification called ReceiverWindow Modification (RWM). RWM can be used together with RED, ARED and BLUE queues, to provide congestion avoidance in packet switched networks at ingress and gateway routers. RWM does not require modification to all end system TCP/IP stacks but can be solely implemented in routers. Our RWM scheme helps in reducing the average queue sizes of RED, ARED, BLUE and even ARED-ECN, BLUE-ECN and REDECN queues. By reducing the average queue sizes, RWM queues reduce the queuing delay resulting in significant improvements in one-way end-to-end packet delays and dropped packets. It is also shown that the per...

• Type: Conference
• Year: 2006
• Where: INFOCOM
• Authors: Visvasuresh Victor Govindaswamy, Gergely V. Záruba, G. Balasekaran
• Keywords: Average Queue Sizes, BLUE Queues, Communications, INFOCOM 2006, Random Early Detection