NDLI: Performance evaluation of a parallel-poll virtual output queued switch with two priority levels

Content Provider	IEEE Xplore Digital Library
Author	Yiping Gong Bin Liu
Copyright Year	2002
Description	Author affiliation: Dept. of Comput. Sci. & Technol., Tsinghua Univ., Beijing, China (Yiping Gong; Bin Liu)
Abstract	Development of high performance switches is of paramount importance in high bandwidth connection networks. Input buffered switches with virtual output queues (VOQ) are most impressive because the access rate of crossbar and buffer memory is not higher than the line rate of the connected link. To support various types of traffic with different quality of service (QoS), the packet scheduling algorithms, which solve the contentions in the transfer of data units from an input link to the appropriate output link, must provide different guarantee for different types of traffic. In this paper, based on the parallel-poll VOQ (PP-VOQ) architecture, we propose a simple novel cell scheduling algorithm with two priority levels. We show by simulation that, in the case of cell-based switches, this priority mechanism provide performance advantages over prioritized iSLIP and such an input-queued architecture can provide guaranteed rate, bounded delay, and jitter-restriction for both two priority levels of traffic.
Sponsorship	Chinese Inst. Commun Chinese Inst. Electron. Univ. Electron. Sci. & Technol. China
Starting Page	669
Ending Page	674
File Size	326050
Page Count	6
File Format	PDF
ISBN	0780375475
DOI	10.1109/ICCCAS.2002.1180706
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-06-29
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computer science Packet switching Switches Quality of service Bandwidth Telecommunication traffic Traffic control Throughput Scheduling algorithm Delay
Content Type	Text
Resource Type	Article

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