Method, system and apparatus for building wavelength channel

A technology of wavelength channel and establishment method, applied in the field of communication, can solve the problems of heavy workload, low efficiency and long time consumption

Active Publication Date: 2007-11-21
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the above method to establish an available wavelength channel may require many calculations and judgments to obtain a wavelength path that meets the damage requirements, and then to establish an available wavelength channel based on the wavelength path, which requires a large workload and takes a long time. Low

Method used

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  • Method, system and apparatus for building wavelength channel
  • Method, system and apparatus for building wavelength channel
  • Method, system and apparatus for building wavelength channel

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Embodiment Construction

[0031] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] An embodiment of the network communication system of the present invention includes a plurality of network nodes and a path calculation server, wherein the path calculation server is configured to receive wavelength path calculation requests, wavelength path constraints, and network resource information between the network nodes, and Calculate and obtain the wavelength paths between the network nodes and the wavelength damage compensation information of the wavelength paths according to the wavelength path constraints and the resource information; the multiple network nodes calculate and obtain the wavelength paths according to the path calculation server The wavelength connection is performed in sequence, the wavelength channel is established, and the wavelength in the interface is compensated for damage according to the wavelength damag...

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Abstract

The method comprises: getting the wavelength path between the first node and the destination node and the wavelength damage compensating message of said wavelength; according to the wavelength path, establishing the wavelength channel between the first node and the destination node; during the establishment of wavelength path, according to the wavelength damage compensating message, making the compensation for the wavelength in the interface of node. The invention also reveals a network communication system and apparatus.

Description

technical field [0001] The present invention relates to the communication field, in particular to a wavelength channel establishment method, system and equipment. Background technique [0002] In order to make the service scheduling of the optical network more flexible, the Multi-Protocol Label Switching (MPLS, Multi-Protocol Label Switching) protocol applied to the packet switching network is extended to form a Multi-Protocol Label Switching (MPLMS, Multi-Protocol Label Switching) protocol applicable to the optical network. Switching) protocol, MPLMS applies the basic concept of MPLS label switching to the optical domain, using optical wavelengths as labels for switching, and each node uses a routing protocol such as Open Shortest Path First (OSPF-TE, Open the Shortest Path First with Traffic Engineering) Traffic Engineering) protocol floods the TE information such as the wavelength and cost on the respective interfaces to the network. When calculating an end-to-end wavele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04B10/12H04B10/18H04B10/2507
CPCH04Q2011/0081H04B10/2507H04J14/0227H04J14/0279H04Q2011/0073H04Q11/0062H04J14/0246H04J14/025H04J14/0257H04J14/0258H04J14/0267H04J14/0269H04J14/0271
Inventor 资小兵徐慧颍申书强
Owner HUAWEI TECH CO LTD
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