Performance of a Priority-Weighted Round Robin Mechanism for Differentiated Service Networks

Strict priority queueing and weighted round robin are two common scheduling schemes for differentiation of services in telecommunication networks. A combination of these is the priority weighted round robin (PWRR) scheme, which serves three classes of traffic with distinct quality requirements, name...

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Bibliographic Details
Published in2007 16th International Conference on Computer Communications and Networks pp. 1198 - 1203
Main Authors Zhang, Y., Harrison, P.O.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2007
Subjects
Bandwidth
Computer networks
Delay
Diffserv networks
IP networks
Quality of service
Round robin
Telecommunication computing
Telecommunication traffic
Traffic control
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ISBN9781424412501
1424412501
ISSN1095-2055
DOI10.1109/ICCCN.2007.4317983

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Summary:Strict priority queueing and weighted round robin are two common scheduling schemes for differentiation of services in telecommunication networks. A combination of these is the priority weighted round robin (PWRR) scheme, which serves three classes of traffic with distinct quality requirements, namely expedited forwarding (EF), assured forwarding (AF) and best effort forwarding (BF). The response time of the AF class is analysed under a worst case scenario and an expression for its mean value is obtained using a queueing model. Numerical results are validated by simulation and implications on service level agreements are discussed.
ISBN:9781424412501
1424412501
ISSN:1095-2055
DOI:10.1109/ICCCN.2007.4317983