Title :
Real-time communication in DQDB-a comparison of difference strategies
Author :
Martini, Peter ; Werschmann, Georg
Author_Institution :
Paderborn Univ., Germany
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;
Conference_Titel :
Local Computer Networks, 1992. Proceedings., 17th Conference on
Conference_Location :
Minneapolis, MN
Print_ISBN :
0-8186-3095-7
DOI :
10.1109/LCN.1992.228103
