Method and device for controlling mainboard of double CPU system

Abstract

The invention discloses a method and a device for controlling a mainboard of a double CPU system. The method comprises that: when any one CPU system executes functions of data processing, controlling, managing and / or maintaining of a device, the other CPU system acquires data information and state information of the CPU system through an information interacting channel, and the working state of the CUP system is monitored according to the state information; and when any one CPU system discovers the other CPU system is failed, the CPU system replaces the failed CPU system to execute all the functions of the device according to the data information. The method and the device realize redundancy of the CPU system of communication equipment, and the reliability of the communication equipment is improved.

Description

technical field [0001] The invention relates to the communication field, in particular to a control method and equipment for a mainboard of a dual-CPU system. Background technique [0002] The mainboard of communication equipment is generally composed of modules such as a small CPU system, a business processing system, and a power supply system. Among them, the small CPU system is the core module of the motherboard, including the CPU, memory configured by the CPU, Flash (flash memory), and CPLD (Complex Programmable Logic Device, complex programmable logic device). The communication software runs on the small CPU system to realize the data processing tasks and control management tasks of the communication equipment. [0003] In the prior art, the structure of the motherboard of the communication device is as follows: figure 1 As shown, it generally includes a small CPU system, a service processing system (MAC+PHY), control logic, an ASIC (Application Specific Integrated Ci...

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Problems solved by technology

However, the hardware configuration of the monitoring module is simple, including only a weaker CPU, smaller memory, etc., and is only responsible for maintaining and monitoring the operating status of the main board, such as monitoring the operating voltage of the main board, fan status, and the temperature of the whole machine; The core CPU small system provides redundant functions

[0005] Therefore, the shortcoming of prior art is: main board does not have the redundant function to the CPU small system that is responsible for equipment data processing and control management, when CPU small system failure can cause whole communication equipment failure, the reliability of communication equipment is low

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