A New Scheduler for AF and EF in a DS Node

  • Authors:
  • Lain-Chyr Hwang;Steen J. Hsu;Cheng-Yuan Ku;Chun-Shin Jie

  • Affiliations:
  • -;-;-;-

  • Venue:
  • ICDCSW '04 Proceedings of the 24th International Conference on Distributed Computing Systems Workshops - W7: EC (ICDCSW'04) - Volume 7
  • Year:
  • 2004

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Abstract

Different applications require different quality of service(QoS). Nowadays, the DiffServ architecture is the mostimportant research area. AF and EF are the well-knownforwarding treatments in DiffServ to provide QoS. This studyis devoted to develop a scheduler that is suitable to theDiffServ. This scheduler should have capacity to provide thebasic requirements in RFCs 2597 and 2598. Furthermore, wedesign the scheduler to meet the original design goal of EFand to provide a fair sharing among the four AF classes. Fromthe numerical results, it can be found our proposed schedulercan provide excellent bandwidth guarantee, priority of EF,fairness of AF, and isolation from best-effort traffic.