Method and device for preventing over-supply of pluggable power supply

A power supply and oversupply technology, which is applied in the field of data communication, can solve problems such as downscaling, failure to complete power supply adjustment in time, and power failure of the whole machine, so as to prevent oversupply
CN102833079AActive Publication Date: 2012-12-19NEW H3C TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NEW H3C TECH CO LTD
Publication Date
2012-12-19

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Abstract

The invention discloses a method and a device for preventing over-supply of a pluggable power supply. According to the method, two sets of bank matrixes are recorded in a POE (Power over Ethernet) chip, wherein a default value of minimum power supply power output by the POE under various conditions is recorded in one set of matrix and is stored in a flash memory of the POE chip; power supply power output by the current POE chip is recorded in the other set of matrix and is stored in an Ram (Random access memory) of the POE chip; and when the POE chip detects that a power module is pulled out, the POE chip covers a corresponding column value in the Ram with a corresponding column value of the default value of the power supply power output by the POE recorded in the flash memory and the corresponding column value in the bank matrix is increased when a switch discovers that the actual in-situ power supply power is higher than the minimum specification power supply output power. According to the method and the device, network equipment can simultaneously support pluggable power supplies of various different powers, the power supply power is fully utilized, and meanwhile, a condition of over-supply of the power supply is prevented.
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Description

technical field

[0001] The invention relates to the technical field of data communication, in particular to a method and device for preventing oversupply when a POE device supports multiple pluggable power supplies with different powers. Background technique

[0002] In order to improve the reliability of switch applications, most of the existing switches support pluggable power supply, which can be easily replaced when the power supply fails, and provides redundant backup. This solution is currently widely used in data centers and other fields.

[0003] Specifically, such as figure 1 As shown, the switch includes two pluggable power module slots 1, 2. Assume that slot 1 only supports 715W power supply, and slot 2 only supports 715W power supply. At this time, you can set the bank matrix (Bank matrix is ​​a function of the POE chip, which is used to set the power supply of each slot in combination. The output power of the power supply, and achieve ms-level switching) as s...

Claims

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