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Method and device for monitoring sub-network connection protection of k-rank optical channel data unit sub-layer

A technology of optical channel data and units, which is applied in the field of optical transport network, can solve problems such as mutual cooperation, and achieve the effect of solving cooperative use

Inactive Publication Date: 2008-03-19
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method and device for realizing k-order optical channel data unit sublayer monitoring subnetwork connection protection, so as to realize ODUk SNC / S protection, and solve the problem of mutual cooperation between multiple SNC / S

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  • Method and device for monitoring sub-network connection protection of k-rank optical channel data unit sub-layer
  • Method and device for monitoring sub-network connection protection of k-rank optical channel data unit sub-layer
  • Method and device for monitoring sub-network connection protection of k-rank optical channel data unit sub-layer

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Embodiment Construction

[0037] Below, the present invention will be described in detail with reference to the accompanying drawings.

[0038] Figure 1 shows the flow chart of configuring SNC / S, and the specific steps are as follows:

[0039] Step 100, designate the ODUk service;

[0040] Step 101, judging whether the tandem connection monitoring (TCM) allocation has been performed on this ODUk service?

[0041] If yes, go to step 103. Otherwise, execute step 102 to allocate TCM to this ODUk service. For details on how to implement TCM allocation, see Figure 2;

[0042] Step 103, configuring the SNC protection monitoring mode,

[0043] The monitoring methods included in SNC include / S, / N, / I, among which,

[0044] SNC / I means inherently monitored SNC, Inherently monitored SNC,

[0045] SNC / N means non-intrusive monitored SNC, non-intrusive monitored SNC,

[0046]SNC / S indicates the SNC monitored by the sub-layer, sub-layer monitored SNC;

[0047] Step 104, judging whether the monitoring mode i...

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Abstract

The invention provides a sub-network connection protection method and a device thereof capable of realizing k-order optical channel data unit sub-layer monitor. The method comprises an optical channel data unit ODUk service is configured or specified, therefore, the ODUk service configuration is connected with the monitor in series and is configured with a SNC / S protection. The device comprises a branch unit, a crossover unit, a line unit, a wave coupling element and a partial wave element. By configuring the monitor connected in series in the SNC / S protection and configuring the related configuration needed the monitor at different levels, the invention realizes the SNC / S protection and solves the coordinate application problem between the SNC / Ss.

Description

technical field [0001] The invention relates to the field of optical transport network, in particular to a subnet connection protection method and device for realizing k-order optical channel data unit sublayer monitoring. Background technique [0002] Optical Transport Network (OTN) is a group of functional entities that can provide client layer signals with transmission, multiplexing, routing, monitoring and survivability processing mainly in the optical domain. It is a wavelength division multiplexing of traditional point-to-point transmission. technology development. [0003] The optical transport network includes the optical channel layer (OCh), the optical multiplexing section layer (OMS), and the optical transmission section layer (OTS). The client layer signal is first digitally encapsulated, then mapped to the OCh layer, and then multiplexed to the OMS layer, and then It is transmitted on the optical cable through the OTS layer. Each subnet generally belongs to di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/08H04B1/74H04Q11/00H04J14/02
CPCH04J3/1652H04J3/14
Inventor 阎君
Owner HUAWEI TECH CO LTD
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