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Robust Control of International Corporate Networks Using Dynamic Trunk Reservation
Toshikane ODA Hiroyuki FUKUOKA Yu WATANABE
IEICE TRANSACTIONS on Communications
Publication Date: 1991/12/25
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Network Control)
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Cost minimization and enhancement of robustness are the major objectives in the design and control of corporate networks. The trade-off between private facility cost and expense for public network use is an important cost-effectiveness criterion. In this paper, we propose a traffic control method which minimizes cost for public network usage in the international corporate networks under both normal and abnormal conditions. The method is a combination of alternative routing and dynamic trunk reservation in which the number of reserved trunks at a link vary with 24-hour profiles of traffic and public network charges between nodes. An analytical performance evaluation method is described, and the effectiveness of the control method is evaluated based on numerical examples.