Real-time communication in DQDB-a comparison of difference strategies

Author

Martini, Peter ; Werschmann, Georg

Author_Institution

Paderborn Univ., Germany

fYear

1992

fDate

13-16 Sep 1992

Firstpage

446

Lastpage

453

Abstract

Two strategies which have recently been proposed for bandwidth allocation in distributed-queue dual-bus (DQDB) subnetworks of a metropolitan area network (MAN) are compared. Studied are packet delays for connection oriented variable-bit-rate (VBR) traffic such as real-time data and compressed voice and video. It turns out that the guaranteed bandwidth protocol is an excellent candidate for connection oriented data service in DQDB where support of delay-sensitive VBR traffic is a major concern. In contrast to this, a modified version of the bandwidth balancing mechanism suffers from slow convergence to the desired bandwidth allocation

Keywords

delays; metropolitan area networks; packet switching; protocols; DQDB; bandwidth allocation; bandwidth balancing mechanism; connection oriented data service; connection oriented variable-bit-rate; delay-sensitive VBR traffic; distributed-queue dual-bus; guaranteed bandwidth protocol; metropolitan area network; packet delays; real-time communication; real-time data; Access protocols; B-ISDN; Bandwidth; Bit rate; Channel allocation; Delay; Electronic mail; Metropolitan area networks; Telecommunication traffic; Traffic control;

fLanguage

English

Publisher

ieee

Conference_Titel

Local Computer Networks, 1992. Proceedings., 17th Conference on

Conference_Location

Minneapolis, MN

Print_ISBN

0-8186-3095-7

Type

conf

DOI

10.1109/LCN.1992.228103

Filename

228103