A selective attenuation feedback mechanism for rate oscillation avoidance

  • Authors:
  • N. Li;S. Park;S. Li

  • Affiliations:
  • Department of Electrical and Computer Engineering, Engineering Science Building 143, University of Texas at Austin, Austin, TX 78712-1084, USA;Department of Electrical and Computer Engineering, Engineering Science Building 143, University of Texas at Austin, Austin, TX 78712-1084, USA;Department of Electrical and Computer Engineering, Engineering Science Building 143, University of Texas at Austin, Austin, TX 78712-1084, USA

  • Venue:
  • Computer Communications
  • Year:
  • 2001
  • Traceable congestion control

    QofIS'02/ICQT'02 Proceedings of the 3rd international conference on quality of future internet services and internet charging and QoS technologies 2nd international conference on From QoS provisioning to QoS charging

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Abstract

We have studied the delay-related rate oscillation within Diffserv. The rate oscillation can come from large round trip latency. Enforcing low feedback overhead can also cause the rate oscillation. The Selective Attenuation Feedback via Estimation (SAFE) is proposed to reduce the oscillation while maintaining fast response to network dynamics. SAFE has no per-flow accounting. Furthermore, the hashing technique is adopted to keep the operating overhead of SAFE to its minimum. System analysis supports the effectiveness of SAFE. Simulation result also shows that SAFE significantly reduces rate oscillation, therefore achieves high link utilization and small queue size while maintaining very low control overhead.