Title :
QoS Guarantees on DiffServ Architectures with GPS-Like Scheduling Disciplines
Author :
Martino, Antonio ; Panza, Gianmarco ; Pattavina, Achille ; Valente, Fabio
Author_Institution :
Politecnico di Milano, Milan
Abstract :
The differentiated services (DiffServ) architecture is a scalable solution for supporting quality of service (QoS) in the Internet. The scheduling discipline plays a fundamental role in QoS capable network nodes. The weighted fair queuing (WFQ), has shown many advantages and widely spread in the last years. In this work we present a mechanism for a dynamic tuning of the WFQ scheduler weights based on measurements of the incoming traffic. The purpose is to obtain proportional maximum delay guarantees for the traffic classes. Our proposal is reliable and efficient in supporting a proportional relative model of QoS. Collected results show how a WFQ-based router can effectively guarantee the proportionality between the maximum delays of DiffServ classes at a given interface in realistic scenarios.
Keywords :
DiffServ networks; Global Positioning System; Internet; quality of service; queueing theory; scheduling; telecommunication network routing; telecommunication traffic; DiffServ network architecture; GPS-like scheduling; Internet; QoS guarantee; WFQ-based router; differentiated services; incoming network traffic; quality of service; weighted fair queuing; Aggregates; Delay effects; Diffserv networks; Global Positioning System; Processor scheduling; Proposals; Quality of service; Scheduling algorithm; Traffic control; Web and internet services;
Conference_Titel :
Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-1042-2
Electronic_ISBN :
978-1-4244-1043-9
DOI :
10.1109/GLOCOM.2007.507
