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