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Management unit-3 circuit simulation method and device

A technology of circuit simulation and management unit, which is applied in the direction of electrical components, multiplex communication, time-division multiplex system, etc., and can solve the problems of AU pointer simulation transparent transmission, etc.

Active Publication Date: 2016-03-02
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no solution for transparently transmitting the AU pointer emulation in the existing technology

Method used

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  • Management unit-3 circuit simulation method and device
  • Management unit-3 circuit simulation method and device
  • Management unit-3 circuit simulation method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] figure 1 A kind of flow chart of AU-3 circuit emulation method provided by the present invention, this method is applied to PTN network, and this method comprises the following steps:

[0070] S101: Convert the frame data from the management unit AU-3 frame format into the tributary unit TU-3 frame format;

[0071] S102: Map the data in the TU-3 frame format to the virtual container VC4 to obtain the data in the VC4 frame format;

[0072] S103: Simulate the data in the VC4 frame format.

[0073] Preferably, the data in the VC4 frame format can be simulated according to the SDH circuit and service simulation technology defined in the Internet Engineering Task Force (InternetEngineeringTaskForce) IETFRequestForCommentsRFC4842 protocol.

[0074] In this embodiment, S101~S102 can be passed figure 2 The mapping path shown is realized, wherein one STM-1 (Synchronous Transport Module-1, SynchronousTransportModule-1) contains three AU-3, and each AU-3 is converted into one ...

Embodiment 2

[0078] image 3 An AU-3 circuit recovery method provided by the present invention is suitable for recovering the simulation data generated by the AU-3 circuit simulation method provided in Embodiment 1 of the present invention, and the method includes:

[0079] S201: Recover the frame data of the virtual container VC4 format from the received message;

[0080] Preferably, according to the SDH circuit and service restoration technology defined in the RFC4842 protocol, the frame data in the virtual container VC4 format is restored from the received message.

[0081] S202: Demap the frame data of the tributary unit TU-3 frame format from the frame data of the VC4 format;

[0082] S203: Convert the frame data of the TU-3 frame format into the frame data of the management unit AU-3 frame format.

[0083] In the embodiment of the present invention, by converting the frame data of the TU-3 frame format into the frame data of the AU-3 frame format from the received message, the simu...

Embodiment 3

[0085] Figure 4 It is a flowchart of another embodiment of an AU-3 circuit simulation method of the present invention, the method includes the following steps:

[0086] S301: Map the H1H2H3 byte of the AU-3 frame format data to the H1H2H3 of the 0th column of the TU-3;

[0087] S302: Map the 1st to 29th columns of VC3 in the AU-3 frame format data to the 1st to 29th columns of VC3 in TU-3;

[0088] S303: Map the 31st to 58th columns of VC3 in the AU-3 frame format data to the 30th to 57th columns of VC3 in the TU-3;

[0089] S304: Map the 60th to 87th columns of VC3 in the AU-3 frame format data to the 58th to 85th columns of VC3 in the TU-3;

[0090] S305: According to the H1H2H3 in the 0th column in the TU-3, the 1st to 29th columns of the VC3 in the TU-3, the 30th to 57th columns of the VC3 in the TU-3, and the VC3 in the TU-3 The 58th to 85th columns of the TU-3 frame format generate frame data.

[0091] S306: Map the data in the TU-3 frame format to the virtual conta...

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Abstract

The invention discloses an AU-3 circuit simulation method, which includes: converting frame data from the AU-3 frame format of the management unit into the TU-3 frame format of the branch unit; mapping the TU-3 frame format data to the virtual container VC4 , obtain VC4 frame format data; simulate the VC4 frame format data. In the embodiment of the present invention, by converting the frame data from the AU-3 frame format to the TU-3 frame format, and then mapping the TU-3 frame format data into the virtual container VC4 to obtain the VC4 frame format data, the above-mentioned The simulation of VC4 frame format data meets the current network's need to transparently transmit the AU pointer, that is, the entire AU content is simulated and transparently transmitted.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of circuit emulation, and in particular to an administrative unit-3 (AdministrativeUnit-3, AU-3) circuit emulation method and device. Background technique [0002] SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy) is a comprehensive information transmission network that integrates multiplexing, line transmission and switching functions, and is operated by a unified network management system. Due to the high maintenance cost of the SDH network, it is no longer expanded in the existing technology, and a new PTN (Packet Transport Network, packet transport network) is adopted to replace the existing SDH network, but there are still a large number of TDM in the SDH network. (TimeDivisionMultiplex, time division multiplexing) circuits and services need to continue to be carried by the PTN network. Therefore, in the scenario where the PTN network replaces the SDH network,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24
CPCH04J3/1611H04J2203/0089H04L12/6418H04L69/08H04L49/20
Inventor 李春荣马大军
Owner HUAWEI TECH CO LTD