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A Multi-Segment Bandwidth Reservation Protocol for a DQDB Subnetwork
Yukuo HAYASHIDA Manabu IKEGAMI Nobuyuki SUGIMACHI
IEICE TRANSACTIONS on Communications
Publication Date: 1997/01/25
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Communication Networks and Services
DQDB (Distributed Queue Dual Bus), MAN (Metropolitan Area Network), throughput, mean delay, fairness,
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The DQDB MAC Protocol standardized by the IEEE 802.6 Committee is a single segment bandwidth reservation scheme that only reserves bandwidth for one segment in the distributed queue. Recently, multi-segment bandwidth reservation schemes that reserve bandwidth for not only one segment in the distributed queue but also a part of or all segments in the local node queue have been proposed. In this paper, we propose a new multi-segment bandwidth reservation protocol that can quickly react to changes in a node's traffic and can quickly allocate the bandwidth fairly and waste-free. We also evaluate the mean message transmission delay and throughput convergence performance by simulation. As a result, it is shown that the mean message transmission delay can be decreased and the throughput can be quickly converged to fair bandwidth allocation.