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Switch monitoring device and method based on programmable logic device

A programming logic and monitoring device technology, applied in the direction of data exchange network, electrical components, digital transmission system, etc., can solve the problem of low reliability of switch hardware monitoring, achieve the effect of improving reliability and stability, and improving convenience

Active Publication Date: 2020-12-01
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems existing in the prior art, the present invention innovatively proposes a switch monitoring device and method based on programmable logic devices, which effectively solves the problem of low reliability of switch hardware monitoring caused by CPU or BMC method compatibility or switching. , effectively improving the reliability and stability of switch hardware monitoring

Method used

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  • Switch monitoring device and method based on programmable logic device
  • Switch monitoring device and method based on programmable logic device
  • Switch monitoring device and method based on programmable logic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, the present invention provides a switch monitoring device based on programmable logic devices, including: a CPU board 1, a switch board 2, the CPU board 1 and the switch board 2 are connected by a connector 3, and the CPU board 1 includes a CPU11; the switch board 2 includes a first programmable logic device 21, an I2C expansion module 22, a switch module 23, a BMC24, and an I2C device 25. The I2C expansion module 22 is connected to the CPU 11 through a connector 3, and the first data read of the first programmable logic device 21 The fetch end is connected to the CPU 11 through the I2C extension module 22, the second data read end of the first programmable logic device 21 is connected to the BMC24, and the control output end of the first programmable logic device 21 is connected to the switching control end of the switch module 23 , the first control input of the switch module 23 is connected to the CPU11, the second control input of the swit...

Embodiment 2

[0046] Such as figure 2 As shown, the technical solution of the present invention also provides a programmable logic device-based switch monitoring method, which is implemented on the basis of Embodiment 1 of the present invention, including:

[0047] S1, changing the management status register set in the first programmable logic device;

[0048] S2, the control object of the I2C device in the switch board is replaced by controlling the switch module to be the CPU or the BMC.

[0049] In step S1, in order to switch the switch hardware between the control plane CPU and the BMC, a management status register is set in the first programmable logic device of the switch board to indicate that the switch hardware is managed by the control plane CPU or the BMC. The management state register is a read-only register, and the settings can be changed by flashing the first programmable logic device. The first programmable logic device controls the switching module through an output pin,...

Embodiment 3

[0058] Such as image 3 As shown, the technical solution of the present invention also provides a PLD-based switch monitoring method, including:

[0059] S1, changing the management status register set in the first programmable logic device;

[0060] S2, by controlling the switch module to replace the control object of the I2C device in the switch board to be CPU or BMC;

[0061] S3, when a BMC failure is detected, change the management status register set in the first programmable logic device, and replace the control object of the I2C device in the switch board with the CPU by controlling the switch module.

[0062] In step S3, the detection of the BMC failure is specifically: by reading the value of the BMC operation status register, it is judged whether the BMC is in failure.

[0063] In step S3, such as Figure 4 As shown, by reading the value of the BMC operation status register, judging whether the BMC operation is faulty includes:

[0064] S31, setting a watchdog t...

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Abstract

The invention provides a switch monitoring device based on a programmable logic device. The device comprises a CPU board and an exchange board. A first data reading end of the first programmable logicdevice is connected with the CPU through an I2C expansion module; a second data reading end of the first programmable logic device is connected with the BMC; the control output end of the first programmable logic device is connected with the switching control end of the switching switch module; a first control input end of the switching switch module is connected with the CPU; the second controlinput end of the switching switch module is connected with the BMC, the control output end of the switching switch module is connected with the input ends of the I2C devices, and the CPU and the BMC independently control the I2C devices in the exchange board through the switching switch module; the invention further provides a switch monitoring method based on the programmable logic device, and the reliability and stability of switch hardware monitoring are effectively improved.

Description

technical field [0001] The invention relates to the field of switch monitoring, in particular to a switch monitoring device and method based on programmable logic devices. Background technique [0002] A switch is a network device used for electrical (optical) signal forwarding. It can provide an exclusive electrical signal path for any two network nodes connected to the switch. Switches include Ethernet switches, telephone voice switches, fiber optic switches, etc. [0003] During the operation of the switch, hardware resources need to be monitored, such as optical modules, power supplies, temperature sensors, voltage sensors, fans, EEPROM (Electrically Erasable Programmable read only memory, electrically erasable programmable read-only memory), CPLD (Complex Programmable Logic Device , complex programmable logic device) and other I2C devices. In recent years, with the continuous expansion of data center operation scale, traditional switch management can no longer meet t...

Claims

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Application Information

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IPC IPC(8): H04L12/931
CPCH04L49/10
Inventor 刘茂栋
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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