Main-standby rotation realizing method facing to high-side exchange board

A technology of active/standby switching and implementation method, which is applied in the direction of data exchange network, digital transmission system, electrical components, etc. It can solve problems such as configuration disorder, long service interruption time, failure to recover from main control board failure, etc., and meet requirements and guarantee The effect of stable operation and excellent fault tolerance

Inactive Publication Date: 2004-09-15
BEIJING HUAWEI DIGITAL TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, some switches have only one main control board, which cannot provide active / standby switchover capability. When the main control board fails, the entire system will be paralyzed, and the maximum trouble-free running time of the system cannot be provided.
Some switches have dual main control boards. The main control board regularly backs up the configuration information (start-config, show run) to the standby main control board. When the standby main control board detects that the main control board is dead, it takes over the main control board. However, when an active / standby switchover occurs, after the standby main control board replaces the main control board, it cannot recover the fault of the original main control board. dislocation

Method used

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  • Main-standby rotation realizing method facing to high-side exchange board

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] After the system (switch) starts up, the main control board will back up the configuration information (start-config, show run) to the standby main control board. During the operation of the system, if the configuration information changes, the main control board will The information is backed up to the standby main control board. When the system is running normally, the main control board will periodically send status report messages to the standby main control board. Perform active / standby switchover.

[0029] Referring to the accompanying drawings, after the standby main control board detects that the main control board is dead, it notifies each interface board to enter the "active / standby switching state (MODULE_SYS_SWITCHOVERING)". First, each module prohibits the CPU from reprocessing the data packets sent to the CPU, clears the Layer 2 protocol entries, Layer 3 protocol entries, and interface entries, and the standby main control board becomes the main control b...

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Abstract

When detecting failure of master control board, standby master control board informs each interface board into 'operation for rearranging master/standby state' first. Then a series of operation is carried out including: each module prohibits CPU to process data packets delivered; cleaning up list items in second layer protocol, in third layer protocol and in interface; standby board is becomes new master control board; service board registers to the new master control board; after registering, starting to clean up hardware settings, and the new master control board creates interfaces, down loads stored operating configuration file; allowing data packet to be sent to CPU, enabling configuration management so as to finish rearrangement. Moreover, fault recovery is carried out for original master control board. The recovered board being started up becomes standby board. The method makes exchange system possesses shortest time for rearranging master/standby state, and longest running time.

Description

Technical field [0001] The invention belongs to the field of computer network communication, and in particular relates to a processing method for a high-end switch-oriented standby main control board to replace the main control board to continue working. Background technique [0002] At present, some switches have only one main control board, which cannot provide active / standby switchover capability. When the main control board fails, the entire system will be paralyzed, and the maximum trouble-free running time of the system cannot be provided. Some switches have dual main control boards. The main control board regularly backs up the configuration information (start-config, show run) to the standby main control board. When the standby main control board detects that the main control board is dead, it takes over the main control board. However, when an active / standby switchover occurs, after the standby main control board replaces the main control board, it cannot recover th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/74H04L12/24
Inventor 石勇
Owner BEIJING HUAWEI DIGITAL TECH
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