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Device of implementing backup for communication equipment in multistage and method of rearranging main and standby devices

A technology for communication equipment and active-standby switching, applied in the field of communication, can solve problems such as communication system reliability reduction, achieve the effects of improving the reliability and stability of the main-standby, reducing implementation costs, and high reliability

Active Publication Date: 2007-12-05
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the slave frame has no active / standby switchover capability, which will definitely reduce the reliability of the communication system.

Method used

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  • Device of implementing backup for communication equipment in multistage and method of rearranging main and standby devices
  • Device of implementing backup for communication equipment in multistage and method of rearranging main and standby devices
  • Device of implementing backup for communication equipment in multistage and method of rearranging main and standby devices

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Embodiment Construction

[0039] The main purpose of the present invention is to provide a device and a switching method for each level of DSLAMs that can respectively realize the switching of the main control board and the standby main control board when the multi-level DSLAMs are connected by optical fibers, so as to overcome the deficiencies in the prior art , so that the main and standby main control boards in each DSLAM can provide backup, and the switching process of the main and standby main control boards in each DSLAM does not affect other DSLAMs, thereby improving the stability and reliability of the optical network.

[0040] The device described in the present invention includes the main main control board, the standby main control board and the optical path adapter included in the DSLAMs at all levels. The DSLAMs at all levels include the main DSLAM and the slave DSLAM. The standby main control boards are connected by an optical path adapter, which provides interconnection paths between the ...

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PUM

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Abstract

A communication system of cascaded devices with a backup function includes a line adapter with multiple inputs and multiple outputs. Wherein, the communication devices of adjacent levels are cascaded through the line adapter, in each communication device, the port of an active main control board which is connected to the line adapter is open, and the port of a standby main control board is closed. The present invention also discloses two Active / Standby switchover methods applied in the above-mentioned communication system, by performing on-off control upon a communication device's interfaces connected to the line adapter, it is guaranteed that the communication devices cascaded by this communication device does not need to perform Active / Standby switchover in main control boards. By applying the present invention, the system's Active / Standby reliability and stability can be improved besides the implementing costs can be reduced.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a device for realizing backup of multi-level communication equipment and a method for realizing active-standby switching. Background technique [0002] Active / standby switchover is a necessary function for the long-term reliable operation of the system. With the construction of broadband access network and the deployment of a large number of comprehensive services such as voice and video, the stability of broadband network has become a must. One of the most important functions is the system The active / standby switching function of the system is a requirement for broadband equipment and data communication equipment in the broadband network. [0003] DSLAM (Digital Subscriber Line Access Multiplexer) is a common equipment in broadband access network. DSLAM access equipment can be divided into two types, frame-type broadband access equipment and box-type broadband access equi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/74G06F11/20H04L69/40H04Q3/545
CPCH04Q2213/13039H04L69/40H04Q3/54558G06F11/2028H04L29/14H04Q2213/13298H04Q2213/13167
Inventor 吴海军
Owner HUAWEI TECH CO LTD
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