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A Hierarchically Distributed Network Management System for Multi-Layered IP/Photonic GMPLS Networks
Hiroshi MATSUURA Hideo IMANAKA Kazumasa TAKAMI
IEICE TRANSACTIONS on Communications
Publication Date: 2004/07/01
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Next Generation Networks Software)
Category: Optical Network Operation
GMPLS, network management system, OSPF, RSVP-TE, explicit route object, routing and wavelength assignment,
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The cost-effective provision of IP services requires multi-layered traffic engineering to obtain dynamic cooperation between IP and photonic layers. The effective control and management of generalized multi-protocol label-switching (GMPLS) networks is an essential part of this. Huge photonic capacities and the number of IP and photonic networks make it likely that enormous amounts of GMPLS network-related data will have to be managed in the near future. At the same time, routing burdens on individual GMPLS routers are critical because of the strong need for per-path quality of service (QoS). To solve these problems, we propose a hierarchically distributed network-management system (NMS) in which we flexibly allocate a GMPLS subnetwork to each sub-NMS and at the same time conduct QoS routing. The distributed nature of our architecture reduces the burden on the NMS as a whole and also lets us remove the routing-burden from GMPLS routers with minimum effect on management processes.