25-10-2012, 12:55 PM
Delivering Faster Congestion Feedback with the Mark-Front Strategy
ABSTRACT
Computer networks use congestion feedback from the routers and destinations to control the transmission load. Delivering
timely congestion feedback is essential to the performance of networks. Reaction to the congestion can be more effective if
faster feedback is provided. Current TCP/IP networks use timeout, duplicate Acknowledgement Packets (ACKs) and explicit
congestion notification (ECN) to deliver the congestion feedback, each provides a faster feedback than the previous method.
In this paper, we propose a markfront strategy that delivers an even faster congestion feedback.With analytical and simulation
results, we show that mark-front strategy reduces buffer size requirement, improves link efficiency and provides better fairness
among users. Keywords: Explicit Congestion Notification, mark-front, congestion control, buffer size requirement, fairness.