Cross-equipment link protection method and system

A protection system and cross-device technology, applied in the field of cross-device link protection methods and systems, can solve problems such as protection, link protection, and single-device protection
CN102035680AInactive Publication Date: 2011-04-27ZTE CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2011-04-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a cross-equipment link protection method and a cross-equipment link protection system. The system comprises a protective group formed by master equipment in which an operating link is positioned and spare equipment in which a protective link is positioned, wherein the master equipment is used for sending switching decision information to the spare equipment; and the spare equipment is used for making decision according to the received switching decision information and sending synchronous notification to the master equipment according to a switch result of the decision. By the method and the system, networking of three network elements and four network elements can be subjected to the protection of a multiplexing section of cross equipment, so that the protective link protects the operating link.
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Description

technical field

[0001] The invention relates to the technical field of multiplex section protection switching, in particular to a cross-device link protection method and system. Background technique

[0002] One of the important reasons why Synchronous Digital Hierarchy (SDH) technology can achieve rapid development and be widely used, and can be adopted as a middle layer protocol in optical transmission systems is its self-healing protection function. In various networking protections, multiplex section protection (Multiplex Section Protection, MSP for short) is an efficient protection means, and is also one of the most important protection means in today's optical transmission systems.

[0003] In its G.841 recommendation, the International Telecommunication Union-Telecommunication Standardization Sector (International Telecommunication Union-Telecommunication Standardization Sector, referred to as ITU-T) clearly defines the multiplex section protection switching protocol ...

Claims

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