The iTFF scheduling algorithm for input-queued switches

Peng Wang, Hongbo Fang, Depeng Jin, Lieguang Zeng, Fang Tao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In input-queued scheduling, iSLIP algorithm is a milestone for its high throughput and low implementation complexity. However under bursty arrivals, its average input latency increases dramatically and quite a few cells will be dropped as the input buffer overflows. Motivated by cutting down the cell loss rate without increasing the average input latency, we present a new scheduling algorithm called iTFF (iterative "Time to leave" and "Full or not" First), which has better performance than iSLIP under bursty traffic conditions. Simulation results indicate that iTFF restrains the cell loss rate exponentially and yet maintains low average input latency. Moreover, iTFF can be implemented in hardware to achieve high speed. In this paper, two implementation schemes of the algorithm are also presented.

Original languageEnglish
Title of host publication2004 International Conference on Communications, Circuits and Systems
Pages692-697
Number of pages6
StatePublished - 2004
Externally publishedYes
Event2004 International Conference on Communications, Circuits and Systems - Chengdu, China
Duration: 27 Jun 200429 Jun 2004

Publication series

Name2004 International Conference on Communications, Circuits and Systems
Volume1

Conference

Conference2004 International Conference on Communications, Circuits and Systems
Country/TerritoryChina
CityChengdu
Period27/06/0429/06/04

Keywords

  • Bursty traffic
  • Scheduling
  • iSLIP
  • iTFF

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