Wave division multiplexing (WDM) network path search method and system

A technology of network path and wavelength division multiplexing, which is applied in the field of optical communication, can solve problems such as the inability of the carrier to send services to the destination, wrong connections, and complexity, and achieve the effects of improving efficiency, improving accuracy, and improving stability
CN101577844AInactive Publication Date: 2009-11-11OPEN INVENTION NEWTORK LLC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
OPEN INVENTION NEWTORK LLC
Publication Date
2009-11-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a WDM network path search method, including the following steps: A, a network element linked list is searched from a source network element of service to a destination network element according to network element connection; B, port searching is carried out on the network element linked list, validity check is carried out on the searched nodes, and searching is not continued from an invalid node any longer; C, all available path linked lists are sorted out according to the searched path topology structure data. The invention also discloses a WDM network path search system. The invention firstly searches out network element linked list, the port searching is carried out on the network element linked list, validity check is carried out on the node, and searching is not continued from the invalid node any longer, thus the searching efficiency is improved while the node validity is fully judged.
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Description

technical field

[0001] The invention relates to the field of optical communication, in particular to a wavelength division multiplexing network path search method and system. Background technique

[0002] With the development of high-speed transmission network, optical communication has become a trend. Wavelength division multiplexing (WDM) technology uses a multiplexer to combine signal carriers of different specified wavelengths at the sending end and send them into an optical fiber for transmission; at the receiving side, another wave splitter combines the optical signals of these different signals Carriers are separated. In order to carry services, the WDM network management system first needs to search for available paths based on equipment resources and optical fiber connections or cross-connections between them. Equipment resources refer to various single boards that perform various functions during the carrier transmission process, and various WDM network elements ...

Claims

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