Enter the show power detail command in priviledged EXEC mode, to display detailed information about the
currently configured power supply mode.
Operating States
The operating state refers to the system’s capacity to respond to a situation where all active power supply
modules fail. The system deems the chassis operating state as full protected, normal protected, or combined
depending on these factors:
• Total active output power, which is the total output power that is available from all the active power
supply modules in the chassis.
• Required budgeted power, which is the power the system requires only for the supervisor modules,
switching modules (line cards), and fan tray to operate in the chassis.
In the show command outputs (show power, show power detail), this is displayed as System Power.
• Total standby output power, which is the total output power that is available from all the power supply
modules in the chassis that are configured as standby.
Whether in the n+1 or n+n mode, the system considers the chassis in a full protected state, when ALL of these
conditions are met:
• Total active output power is greater than the required budgeted power
• Total standby output power is greater than or equal to total active output power
Whether in the n+1 or n+n mode, the system considers the chassis in a normal protected state, when ALL of
these conditions are met:
• Total active output power is greater than the required budgeted power
• Total standby output power is lesser than the total active output power
The system operates in a combined state, when it encounters these conditions (any redundancy configuration
is rejected):
• Total active output power is lesser than the required budgeted power
• A standby power supply module is not configured or installed.
Example: Operating State
The following sample output of the show power command, shows a power supply configuration that is in a
full protected state.
Here, the power supply modules in slots 1 and 2 are active and sharing power; power supply modules in slots
7 and 8 are in standby. The required budgeted power is 2115W and inline power requires 3185W. The switch
is in a full protected state because
• Total active output power (PS1 Capacity + PS2 Capacity) is greater than the required budgeted power
(System Power - Maximim Used 2115) and
• Total standby output power (PS7 Capacity + PS8 Capacity) is equal to total active output power (PS1
Capacity + PS2 Capacity).
System Management Configuration Guide, Cisco IOS XE Bengaluru 17.4.x (Catalyst 9400 Switches)
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Environmental Monitoring and Power Management
Operating States
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