System and method for realizing electrical layer linear protection in POTN

A linear protection and electrical layer technology, applied in the field of systems that implement electrical layer linear protection, can solve problems such as affecting switching time, save equipment costs, simplify protection design, and ensure high efficiency and reliability.

Active Publication Date: 2016-01-27
FENGHUO COMM SCI & TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The original centralized switching architecture implements APS (Automatic Protection Switch, automatic protection switching) through the pure cross-connection unit control cross-connection mode. With the centralized processing method, the switching action

Method used

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  • System and method for realizing electrical layer linear protection in POTN
  • System and method for realizing electrical layer linear protection in POTN

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Embodiment Construction

[0020] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0021] Such as figure 1 and figure 2 As shown, the system for implementing electrical layer linear protection in the POTN of the present invention includes a source end and a sink end, and the source end includes a service mapping unit a1, a cell switching unit a2, a working optical channel unit a3 with a working optical channel, and a The protection optical channel unit a4 of the channel, and the APS control unit a5; the sink end includes a service mapping unit b1, a cell switching unit b2, a working optical channel unit b3 with a protection optical channel, a protection optical channel unit b4 with a protection optical channel, APS control unit b5; the source end and the sink end are the same network element, so a and b are used on the label to enter a new distinction. In this embodiment, the working optical channel unit has a working opti...

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Abstract

The invention relates to a system and method for realizing electrical layer linear protection in POTN, relating to the POTN field. A business mapping unit of a source end converts ODUk channel data into a group of cells through cell segmentation, a multicast ID is distributed, the cells are subjected to concurrence or selection at work and protection light channel units through a cell switching unit, and after the cells are received by the work and protection light channel units, the cells are selectively activated and are sent to the corresponding cell reception ports; after the work and protection light channel units of a destination end receive signals, the de-mapping and de-multiplexing of ODUk is completed, the cells are sent out via the corresponding channels, a system cross is established to point to the business mapping unit; and the signal failure, signal deterioration, and APS overhead information are detected, an APS control unit notifies the current needed light channel units to activate the cross and non-needed light channel units to block the cross. The ODUk electrical layer linear protection is realized under the unified cell exchange configuration of POTN, and the high effectiveness and the reliability are guaranteed.

Description

technical field [0001] The invention relates to the field of POTN (Packetenhanced Optical Transport Network, packet-enhanced optical transport network), in particular to a system and method for realizing electrical layer linear protection in POTN. Background technique [0002] Traditional OTN (Optical Transport Network, Optical Transport Network) equipment generally completes ODUk (including ODU0 / 1 / 2 / 2e / 3 / 4) scheduling based on time-division and space-division cross-connect units. On this basis, the ODUk electrical layer linear protection required by the OTN network uses the cross-connect unit to control time-division and space-division cross-connection to achieve concurrent or selective transmission and reception. [0003] The new-generation POTN is a packet-enhanced OTN device. In order to realize the unified scheduling of ODUk and packet services, the cell switching core is used to replace the traditional time-division and space-division crossover. The switching principl...

Claims

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Application Information

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IPC IPC(8): H04Q11/00H04B10/032
Inventor 陶雪丽宁辉罗力
Owner FENGHUO COMM SCI & TECH CO LTD
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