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Path protection method and system of service transport network

A service channel and channel protection technology, applied in the field of communication transmission, can solve the problem that the transmission network cannot be effectively protected, and achieve the effect of improving the utilization rate of bandwidth resources and improving reliability

Inactive Publication Date: 2010-03-31
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0009] In view of this, the embodiment of the present invention provides a channel protection method and system for a service transmission network, which solves the problem in the prior art that the transmission network with dynamic bandwidth adjustment cannot be effectively protected, and improves the reliability of transmission network performance

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  • Path protection method and system of service transport network

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Embodiment Construction

[0025] In order to make it easier for those skilled in the art to understand and realize the present invention, the embodiments of the present invention are described in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0026] The flow chart of the channel protection method of the service transmission network in Embodiment 1 of the present invention is as follows figure 1 shown.

[0027] Step 101, dynamically adjust the protection of at least two service channels P1, P2, P3...Pm-1, Pm, Pm+1...Pn-1, Pn with the same source and sink nodes The bandwidth of each service channel in the group is based on the bandwidth of the service channel with the largest bandwidth in the protection group, and the bandwidth of the service channel Pn with the lowest priority is adjusted to be greater than or equal to the bandwidth of service chann...

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Abstract

The embodiment of the invention relates to the communication transmission field, in particular discloses a path protection method and a system of a service transport network. The method comprises thefollowing steps: dynamically adjusting the bandwidth of each service path in at least more than two service path protection groups with the same source and destination nodes, and allowing the destination nodes to switch the path receiving the services from the service paths suffering from first faults to the service paths with the lowest priority when the destination nodes detect that other service paths except the service paths with the lowest priority suffer from first faults. The system comprises a dynamic adjusting module, destination nodes and source nodes. By establishing the path protection groups with the same source and destination nodes and dynamically adjusting the bandwidth of each service path in the protection groups, the invention solves the problem that the transport networks with bandwidth being dynamically adjusted can not be effectively protected in the prior art, improves the reliability of the transmission network performance and simultaneously increases the resource utilization ratio of the bandwidth.

Description

technical field [0001] The invention relates to the field of communication transmission, in particular to a channel protection method and system for a service transmission network. Background technique [0002] The transmission network implements the transmission of branch user signals through a multiplexing mechanism. A transport network includes a series of physically interconnected network elements. The physical connection between network elements becomes a section or line, and the path of a specific tributary signal passing through the transport network from end to end becomes a path. In SDH (Synchronous Digital Hierarchy), a channel is represented by a virtual container (VC-N) and its associated channel overhead (POH). Once the channel is established, its size and position will not change. A segment between network elements is represented by a Synchronous Transport Module (STM-N) transport frame and its corresponding segment overhead (SOH). [0003] A basic requiremen...

Claims

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Application Information

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IPC IPC(8): H04J3/16H04J3/07H04B1/74
Inventor 曹旸邹世敏胡幸
Owner HUAWEI TECH CO LTD
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