QoS interworking for Diffserv over ATM access networks

Author

Tanaka, Jun ; Oda, Sotaro ; Goto, Michihiko ; Ishihara, Tomohiro

Author_Institution

Fujitsu Labs. Ltd., Kawasaki, Japan

Volume

3

fYear

2000

fDate

2000

Firstpage

1560

Abstract

We have developed a Diffserv emulation scheme over ATM access networks. Diffserv over ATM requires some extension for conventional routers. The routers must map their Diffserv classes of services into ATM QoS classes and forward IP packets into prioritized VCs based on DSCP (DiffServ code point). The purpose of this work is to provide conventional IP over ATM interfaces between IP and ATM clouds. We propose DSCP snooping at ATM edge nodes, which differentiates service over a single VC between two IP domains. A prototype circuit was used to evaluate this scheme

Keywords

Internet; asynchronous transfer mode; network interfaces; optical fibre subscriber loops; packet switching; quality of service; telecommunication network routing; transport protocols; ATM access networks; ATM edge nodes; DiffServ code point; Diffserv emulation; IP over ATM interfaces; IP packet forwarding; QoS classes; QoS interworking; WDM; optical line terminals; prioritized VC; prototype circuit; routers; Asynchronous transfer mode; Diffserv networks; IP networks; Optical fiber networks; Passive optical networks; Quality of service; Spine; Telecommunication traffic; WDM networks; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-6451-1

Type

conf

DOI

10.1109/GLOCOM.2000.891901

Filename

891901