Novel Routing Algorithms for Hierarchical Architecture in ASON

The hierarchical routing infrastructure in automatic switched optical network (ASON) is researched. Three operational algorithms MLLR (multi-layer least loaded routing algorithm), MLCR (multi-layer least congestion routing algorithm) and MROB (multi-layer routing algorithm based on backtracking) are...

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Bibliographic Details
Main Authors: Pei Luo, Shanguo Huang, Weihua Lian, Bin Li, Wanyi Gu
Format: Conference Proceeding
Language:English
Subjects:
ASON
Communication switching
Communications technology
Educational technology
Electronic mail
hierarchical routing
Laboratories
Load management
Maximum likelihood linear regression
Optical fiber communication
routing and wavelength
Telecommunication switching
Wavelength routing
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Summary:The hierarchical routing infrastructure in automatic switched optical network (ASON) is researched. Three operational algorithms MLLR (multi-layer least loaded routing algorithm), MLCR (multi-layer least congestion routing algorithm) and MROB (multi-layer routing algorithm based on backtracking) are proposed. In these algorithms, the resource coordination and balancing of multi-domain and multilayer are considered based on the fixed alternate hierarchical routing. A platform named AHORSP (ASON based hierarchical optimal routing & signaling platform) supporting our routing optimization scheme is proposed and demonstrated. Based on the platform the average block probability can be reduced effectively with acceptable time performance by these algorithms.
DOI:10.1109/ICIE.2009.269