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Method and system for increasing board-replacing stability

A stable and board-inverting technology, which is applied in the field of communication, can solve the problems of long board switching time and instability, and achieve the effects of low improvement cost, reduced fluctuation range, and overcoming unstable switching time

Inactive Publication Date: 2007-06-13
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the software switching process, the usual implementation method is that the software regularly detects the HW line information, and after the K-frame verification, it is judged whether to enable the switching control. Since the timing interval takes a certain time, the K-frame verification detection of the board is also It will take a certain amount of time, which will lead to long and unstable board switching

Method used

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  • Method and system for increasing board-replacing stability
  • Method and system for increasing board-replacing stability
  • Method and system for increasing board-replacing stability

Examples

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0033] The main idea of ​​the present invention is to process the switching judging logic of the 1:N board switching communication unit and protection unit by FPGA (Field Programmable Gate Array). Read the switching information value corresponding to the HW line through the FPGA, and then perform K frame verification. If the HW line information changes and the continuous K frames are the same, an external interrupt will be generated. The software of the communication unit and the protection unit will process the external interrupt. directly process the service configuration and other actions of board switching.

[0034] Since the automatic switching of the single board is triggered by hardware, if two or more switching actions are triggered continuously, multiple interruption signals will be sent continuously, causing confusion to the software processing of t...

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Abstract

The system includes control unit, communication unit, and protection unit connected through bus. The communication unit, and protection unit includes rearrangement control module (RCM), and rearrangement process module (RPM). RCM is realized by using hardware logic circuit. When determining that rearrangement is needed based on information on bas, the RCM informs RPM to carry out rearrangement immediately if determining that RPM is idle based on synchronous mark (SM); if determining that RPM is processing previous rearrangement, then carrying out rearrangement count; when detecting that SM is changed to idle mark, RCM informs RPM to carry out new rearrangement. After receiving information of rearrangement from RCM, the RPM sets up SM to indicate that rearrangement is carrying on first, and then carries out operation of rearranging boards, and finally sets up rearrangement complete mark. The invention raises stability of rearranging boards, and shortens rearrangement time.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to board switching. Background technique [0002] In the communication equipment system, the quality of service of the network has always been a very critical issue, especially for communication equipment such as serving in railways and aviation, a short service interruption may cause immeasurable losses. Therefore, communication equipment has very high requirements on reliability. In communication equipment, various levels of protection are usually used to improve the reliability of the equipment. [0003] At present, multi-level protection is generally provided on communication equipment. These protection methods use redundant design to ensure the security of service transmission by providing backup equipment or measures. The business is switched to the standby device to minimize the business interruption time caused by equipment failure. [0004] 1: N-board switching is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24G06F11/00H04B1/74
Inventor 曹秋平
Owner ZTE CORP