Title :
Performance of a Priority-Weighted Round Robin Mechanism for Differentiated Service Networks
Author :
Zhang, Y. ; Harrison, P.G.
Author_Institution :
Imperial Coll. London, London
Abstract :
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.
Keywords :
DiffServ networks; queueing theory; telecommunication traffic; assured forwarding class; best effort forwarding class; differentiated service network; expedited forwarding class; priority-weighted round robin mechanism; queueing model; Bandwidth; Computer networks; Delay; Diffserv networks; IP networks; Quality of service; Round robin; Telecommunication computing; Telecommunication traffic; Traffic control;
Conference_Titel :
Computer Communications and Networks, 2007. ICCCN 2007. Proceedings of 16th International Conference on
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-1251-8
Electronic_ISBN :
1095-2055
DOI :
10.1109/ICCCN.2007.4317983
