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Channel protection method, node device and communication system

A channel protection and working channel technology, applied in the field of network communication, can solve the problems of not proposing M protection channels, unfavorable working channel resource protection, allocation solutions, etc.

Inactive Publication Date: 2010-06-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the defect of this protection method is that when more than M working channels fail at the same time, the prior art does not propose a better solution for how to allocate the M protection channels, so it is not conducive to more efficient use of working channel resources. good protection

Method used

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  • Channel protection method, node device and communication system
  • Channel protection method, node device and communication system
  • Channel protection method, node device and communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 As shown, this embodiment provides a channel protection method, including the following steps:

[0025] Step S1: After the local node device detects the sorting trigger event, it prioritizes the n faulty working channels; assigns serial numbers 1, 2, 3... ...n, wherein, n is a natural number.

[0026] Wherein, the faulty working channel refers to a working channel that has failed.

[0027] Step S2: Compare the above serial number with the number of protection channels.

[0028] Step S3: releasing at least one of the protection channels occupied by the faulty working channels corresponding to the sequence numbers greater than the above number.

[0029] Step S4: Allocate an unoccupied protection channel to the faulty working channel corresponding to the above sequence number that is not allocated to the above protection channel and is less than or equal to the above number.

[0030] Through the method of this embodiment, the purpose of using M protect...

Embodiment 2

[0033] This embodiment provides another channel protection method, including the following steps:

[0034] Step S1A: After the local node device detects the sorting trigger event, it prioritizes the n faulty working channels; assigns serial numbers 1, 2, 3... ...n, where n is a natural number, and the sorting trigger events include: the local working channel fails or the failure of at least one of the above-mentioned failed working channels is recovered; or the local administrator issues a switching command or switches A clear command; or the local node device adds or deletes the number of protection channels; or the local node device receives a switching request from a remote node device.

[0035] The following is a specific description of the above-mentioned various sorting trigger events:

[0036] Sorting trigger event 1: the local working channel fails or the failure of at least one of the above-mentioned failed working channels is recovered.

[0037] When a failure of t...

Embodiment 3

[0084] This embodiment provides another channel protection method, including the following steps:

[0085] Step S1A: After the local node device detects the sorting trigger event, it prioritizes the n faulty working channels; assigns serial numbers 1, 2, 3... ...n, where n is a natural number, and the sorting trigger events include: the local working channel fails or the failure of at least one of the above-mentioned failed working channels is recovered; or the local administrator issues a switching command or switches A clear command; or the local node device adds or deletes the number of protection channels; or the local node device receives a switching request from a remote node device.

[0086] Among them, the sorting principle for prioritizing faulty working channels can be selected according to needs, as long as the sorting principles selected by the node devices at both ends of the channel are consistent, the following methods can be used specifically:

[0087] Sorting...

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Abstract

The invention relates to a channel protection method, a node device and a communication system, wherein the method comprises the following steps of: after a sequencing trigger event is detected by a local node device, carrying out priority sequencing for n failure operation channels; allocating sequence numbers 1, 2, 3 to n to the n failure operation channels according to the priority sequence from high to low, wherein n is a natural number; comparing the sequence numbers with the number of protection channels; releasing at least one protection channel occupied by the failure operation channel corresponding to the sequence number larger than the number; and allocating the unoccupied protection channels to the unallocated operation channels and the failure operation channel corresponding to the sequence number smaller than or equal to the number. The device comprises a sequencing module, a comparing module, a releasing module and an allocating module. Under the condition of ensuring fewer protection channels, the invention can still effectively and reasonably allocate the corresponding protection channels to the protection channel most needing protection in a network.

Description

technical field [0001] The invention relates to a channel protection technology, in particular to a method for protecting N working channels by M protection channels, a node device and a communication system, belonging to the technical field of network communication. Background technique [0002] Protection switching technology is essentially a survivability technology, which improves the reliability performance of the network by providing the ability to recover services from service interruptions. This technology can be applied to all places where services are provided, and protection switching is a necessary condition for communication networks. [0003] The existing protection switching technology includes a 1:N protection mode, that is, one protection channel is used to protect N working channels. In a communication system, the anti-failure capabilities of the protection channel and the working channel are generally the same, so the failure probability of the protection...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/26H04L1/22
Inventor 裴玲阎君陈亘陈旻谭伟张波何达曾宇
Owner HUAWEI TECH CO LTD
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