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Method and device realizing connection protection of monitor subnet of k order optical channel data unit sublayer

A technology of optical channel data and units, which is applied in the field of optical transport network, and can solve problems such as no specific instructions

Active Publication Date: 2013-02-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of realizing the present invention, the inventor found that the description of Subnetwork Connection Protection (SNCP) in the existing protocol only describes the demand for SNCP from the perspective of demand, and does not specify how to implement SNCP , there is no related description for the implementation method and device of the subnet connection protection (SNC / S, SNCP with Sub-layer monitoring) in the sub-layer monitoring mode

Method used

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  • Method and device realizing connection protection of monitor subnet of k order optical channel data unit sublayer
  • Method and device realizing connection protection of monitor subnet of k order optical channel data unit sublayer
  • Method and device realizing connection protection of monitor subnet of k order optical channel data unit sublayer

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Embodiment Construction

[0021] Below, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0022] Such as figure 1 The flow chart of configuring SNC / S is shown, and the specific steps are as follows:

[0023] Step 100, designate an ODUk service.

[0024] Step 101, judging whether the tandem connection monitoring (TCM, Tandem connection monitoring) allocation has been performed on this ODUk service?

[0025] If yes, execute step 103; otherwise, execute step 102 to allocate TCM to this ODUk service. For details on how to implement TCM allocation, see figure 2 ;

[0026] Step 103, configuring the SNC protection monitoring mode.

[0027] The monitoring methods included in SNC include / S, / N, / I, among which,

[0028] SNC / I means inherently monitored SNC, Inherently monitored SNC,

[0029] SNC / N means non-intrusive monitored SNC, non-intrusive monitored SNC,

[0030] SNC / S indicates the SNC monitored by the sub-layer, sub-layer mon...

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Abstract

The present invention relates to the field of Optical Transport Networks (OTNs) and discloses a method for implementing SNC / S on an ODUk, including: allocating a Tandem Connection Monitoring (TCM) level to an ODUk service, wherein if different TCM levels are allocated to the same node in the ODUk service, the different TCM levels are executed in the specified sequence in the same node; configuring SNC / S protection for the ODUk service. The present invention also discloses a method and an apparatus for implementing SNCP with Sub-layer monitoring (SNC / S) on an ODUk implement ODUk SNC / S protection and interoperability between multiple SNC / S entities.

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, Optical Transport Network) 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 traditional point-to-point transmission The development of wavelength division multiplexing technology. [0003] The optical transport network includes an optical channel (Och, Optical channel) layer, an optical multiplexing section (OMS, Optical Multiplex Section) layer, and an optical transmission section layer (OTS, Optical Transmission Section). The client layer signal is first digitally encapsulated and then mapped to OCh layer, and then multiplexed to the OMS layer, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04J3/14H04J3/16
CPCH04J3/1652H04J3/14
Inventor 阎君
Owner HUAWEI TECH CO LTD
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