Real-time communication in DQDB-a comparison of difference strategies
- 2 January 2003
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
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
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