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

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2 Author(s)
Martini, P. ; Paderborn Univ., Germany ; Werschmann, G.

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

Published in:

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

Date of Conference:

13-16 Sep 1992