Single optical fiber fault processing method for Ethernet antomatic protection system

A fault handling method and automatic protection technology, which is applied in the transmission system, fault recovery arrangement, digital transmission system, etc., can solve problems such as processing errors, long convergence time of the Ethernet automatic protection system, and misidentification of the master node, and achieve system consumption Low, improve the anti-fault ability, the effect of algorithm refinement
CN101072155AInactive Publication Date: 2007-11-14ZTE CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2007-11-14
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The method includes following steps: step S202, each node of Ethernet automatic protection system (EAPS) sends out health detection frame to detect link statute of each protected port; step S204, when link failure or link alarm message is received, main node or boundary node processes link failure, and changes sequence number of health detection frame and sending time. Through bidirectional sending failure alarming frame etc processes, the invention can prevent too long convergence time of EAPS caused by that nodes inside ring couldn't detect link failure quickly when failure of single optical fiber occurs as well as prevents misinterpretation of EAPS caused by that health detection frame passes through another optical fiber.
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Description

technical field

[0001] The invention relates to the field of data communication network protection, in particular to a single optical fiber fault processing method for an automatic protection system of an Ethernet ring network. Background technique

[0002] With the development of IP network in the direction of carrying multiple services, NGN (Next generation network, next-generation communication network), IPTV (Internet protocol television, Internet TV) and other services have higher and higher requirements for network reliability and real-time performance. The traditional ring network protection STP (Spanning-tree protocol, Spanning Tree Protocol) technology of the inbound layer 2 network cannot meet the requirements of fast convergence and link switching. RFC3619 defines an Ethernet Automatic Protection Switching (EAPS, Ethernet Automatic ProtectionSwitching) method, which solves the problem of slow convergence of network faults when Ethernet devices are in a ring networ...

Claims

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