Quality of service in TCP/IP networks: a DiffServ testbed

Author

Frangiskatos, Didtrios ; Mckenzie, Sati

Author_Institution

Sch. of Comput. & Math. Sci., Greenwich Univ., London, UK

fYear

2004

fDate

2-3 March 2004

Firstpage

141

Lastpage

145

Abstract

An implementation of the weighted fair queue algorithm on a Pentium/Windows 2000 platform is presented with preliminary test results. This is part of a DiffServ testbed being developed at the University of Greenwich for evaluating various design options relating to the provision of quality of service over the Internet. The present implementation includes: (a) a packet classifier which assigns incoming packets to different queues based on the ToS field in the IP header; (b) packet queues with finite buffers; (c) a scheduler which implements the WFQ algorithm. Preliminary results include queuing delays and loss probabilities for different packet arrival rates, service weights and buffer size.

Keywords

IP networks; Internet; buffer storage; delays; probability; quality of service; queueing theory; scheduling; telecommunication traffic; DiffServ testbed; Internet QoS; TCP/IP networks; buffer size; packet arrival rates; packet classifier; packet loss probabilities; quality of service; queue scheduler; queuing delays; service weights; weighted fair queue algorithm;

fLanguage

English

Publisher

iet

Conference_Titel

Telecommunications Quality of Services: The Business of Success, 2004. QoS 2004. IEE

ISSN

0537-9989

Print_ISBN

0-86341-393-5

Type

conf

DOI

10.1049/ic:20040031

Filename

1515084