An Analysis for End-to-End Delay Based on WFQ Policy in the Real-Time Ethernet

Authors

  • Tongyu Zhu State Key Lab. of Software Development Environment
  • Jufu Zhang Development Environment Beihang University
  • Jianling Zhao State Key Lab. of Software Development Environment Beihang University, Beijing

Keywords:

: real-time Ethernet, end-to-end delay, WFQ algorithm

Abstract

Real-Time Ethernet is based on Ethernet and provides a deterministic network with guaranteed service to real-time data transmission in reliable applications. The analysis of end-to-end delays is required in order to determine upper bounds in real-time Ethernet. This paper evaluates end-to-end delay bounds of transmitting heterogeneous flows, including real-time data, multimedia and best-effort data flows, in a real-time Ethernet network that uses Weighted Fair Queuing (WFQ) scheduling policy on switch output ports. We compare the WFQ-based scheduling policy with current scheduling algorithm, i.e. FIFO. Experiments show that WFQ can decrease delays and improve performance while comparing with traditional queuing algorithm. 

Published

2020-10-11

How to Cite

Zhu, T., Zhang, J., & Zhao , J. (2020). An Analysis for End-to-End Delay Based on WFQ Policy in the Real-Time Ethernet . International Journal on Information Technology and Computer Science, 5(1). Retrieved from http://ijitcs.info/index.php/ijitcs/article/view/29

Issue

Section

Research Articles