An Improved RED Scheme For Handling Misbehaved High-bandwidth Flows

• Main Authors: Chung-Hsing Wu, 吳忠興
• Other Authors: Yaw-Chung Chen
• Format: Others
• Language: en_US
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/04595671514676402125

碩士 === 國立交通大學 === 資訊工程系 === 90 === The Random Early Detection (RED) mechanism is a well-known active queue management mechanism that was related to congestion control. And the RED mechanism has been recommended to be deployed in the Internet router. However, the RED mechanism cannot protect well-behaved flows (i.e. TCP-compatible flows) against the high-bandwidth misbehaving flows, these include flows that do not use congestion avoidance mechanism and flows with poorly implemented TCP protocol, during periods of congestion. We proposed a new mechanism to improve RED’s functionality to deal with the high-bandwidth misbehaving flows. The simulation results show that our proposed mechanism can successfully identify and penalize the high-bandwidth misbehaving flows. Besides, from those simulation results, we could find that our proposed mechanism can achieve approximate fairness among all competing flows.