Method for detecting exchange failure of intelligent optical network dual-direction multi-plexing section loop network protection

An intelligent optical network and protection switching technology, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problem of failure to detect the failure of protection switching in the multiplexing section ring network, and achieve the effect of ensuring normal transmission
CN1815994AActive Publication Date: 2006-08-09HUAWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAWEI TECH CO LTD
Publication Date
2006-08-09

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Abstract

The method includes following steps: (1) detecting real time information of network topology transmitted by using rote protocol between net elements in bidirectional multiplexing sectional rings of intelligent optical network; (2) using real time information of network topology to determine whether bidirectional multiplexing sectional rings are in ring protected rearrangement state; if yes, going to (3); otherwise, going to (1); (3) based on combination of topology change of optical network and alarm in service channel in higher order to determine bidirectional multiplexing sectional rings to be rearranged in intelligent optical network being in failure state of rearrangement. Through net element in service source end, the method launches relocating route to recover service so as to guarantee normal transmission of service when service rearrangement of multiplexing sectional rings in optical network is in failure.
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Description

technical field

[0001] The invention relates to a detection method for a bidirectional multiplex section ring network protection switching failure, in particular to a detection method for a bidirectional multiplex section ring protection switching failure in an intelligent optical network. Background technique

[0002] ASON (Automatic Switched Optical Network, Automatically Switched Optical Network), also known as intelligent optical network, is implemented based on a distributed control plane and supports the optical network control plane for establishing dynamic switching connections. It overcomes the shortcomings of centralized management of traditional optical networks (such as SDH or Sonet, wavelength networks, etc.), and the creation, maintenance, and removal of optical connections require manual intervention.

[0003] The network element in ASON first obtains the connection relationship between the network element and other network elements in ASON through the local l...

Claims

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