4500 Power management

Power redundancy configuration

Switch(config)#power redundancy-mode redundant

Switch#show power supplies

Power supplies needed by system: 1

This shows that one power supply is in used while the other is on standby.

 

If power consumption of the two power supplies is needed:

Switch(config)#power redundancy-mode combined

Switch#show power supplies

Power supplies needed by system: 2

2 power supplies will be in used, but there will be no power redundancy.

 

Combined mode power resiliency

Only works with 4200W and 6000W power supplies.

With two 4200W or two 6000W power supplies, up to a maximum of 4 power inputs is available. You can limit the maximum input power to 2 or 3 power supplies:

Switch(config)#power redundancy combined max inputs <2 or 3>

Switch(config)#power redundancy combined max inputs 3

This configuration makes the chassis uses 3 power supplies while the 4th one in standby, in case if one power supply fails, the standby power supplies will be in operation.

 

Powering down a module

If the system does not have enough power to supply for the module, you can choose to power down the module and let the module run in low power mode.

To power down module at slot 5:

Switch(config)#no hw-module module 5 power

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