Method for controlling plane participation protective rotation in ASON network

A control plane, optical network technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as technical solutions that have not yet been proposed

Inactive Publication Date: 2005-03-02
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the optical communication industry at home and abroad has gradually discovered the necessity of the above-mentioned control plane participating in the protection, the corresponding research has only begun, and no corresponding technical solutions have been proposed.

Method used

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  • Method for controlling plane participation protective rotation in ASON network
  • Method for controlling plane participation protective rotation in ASON network
  • Method for controlling plane participation protective rotation in ASON network

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Embodiment Construction

[0057] The specific working mode of the present invention will be further explained in detail below in conjunction with the specific examples shown in the accompanying drawings.

[0058] When the path protection method of the present invention configures 1+1 path protection through the control plane, the source node simultaneously selects paths for the working path and the protection path. The signaling process of establishing the working and protection paths can be initiated at the same time, or work first and then protect. The signaling process of deleting the working and protection trails can be initiated at the same time, or can be protected first and then work. The signaling process can also complete the deletion of only the protection path, or the establishment of only the protection path.

[0059] When the path protection method of the present invention configures 1:N or M:N path protection through the control plane, N working paths are selected at the source node at t...

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Abstract

This invention relates to a method for protecting inversions involved by a control plane in an automatic exchange light network which utilize the GMPLS technology to set up label switching paths (LSP) and takes the protected attribute of LSP as one of conditions to provide it to the control plane for route selection operation to realize the route protection and multiplex segment protection involved by the control plane on ASON nod and realize inversion protection by this invented method.

Description

technical field [0001] The invention relates to a protection method of an optical network, in particular to a protection switching method participated by a control plane in an automatic switching optical network. Background technique [0002] Automatically Switching Optical Network (ASON) refers to an automatic switching transport network applied to the SDH transport network defined by G.803 and the optical transport network defined by G.872. The automatic switching optical network supports three kinds of connections: switching connection, soft permanent connection and permanent connection, and its network includes three planes: transmission plane, control plane and management plane. [0003] Protection in traditional optical networks can be divided into 1+1 trail protection (trail protection) protection, 1:N trail protection, M:N trail protection, subnetwork connection protection (SNCP), 1+1 linear multiplexing Section protection, 1:N linear multiplex section protection, M...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24
Inventor 魏学勤孙俊宋然
Owner FENGHUO COMM SCI & TECH CO LTD
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