Hi,
Regarding the [strict] option in admin power budget is a hidden post so there were official notes for that. FYI, default set is [power budget enforcement] that is power budget is enforced.
The power manager automatically reads the required power supply values from the EEPROM on all cards and calculates the required power budget. The system can power up line cards only if there is sufficient power. Use the [power budget enforcement disable] command to disable the power budget calculation and to allow the system to boot cards in an over-budget condition.
If the system is running with a power budget deficiency and the <power budget enforcement disable> command is not configured, a reset of a line card powers down the line card. Beginning with Cisco IOS XR Release 4.3.1, if you configure the power budget enforcement disable command, behavior is normal even if the system has a power budget deficiency.
ASR9006(admin-config)#power budget enforcement strict
The [strict] option to the 'power budget' command is useful when you want to adhere to power redundancy. Here's an example to illustrate.
- Suppose you have 3 power modules each generating 3kW. So, 9kW total is available.
- Further suppose that your current config requires 6kW.
In this scenario, you have ‘single power module redundancy’. If a single 3kW power supply fails, you are still within budget.
Extending the scenario above, adding a new card would be allowed based on available power, but it would mean you no longer could withstand a power module failure.
Without the [strict] option, you will be allowed to add the module power it up. But, with the [strict] option you will NOT be allowed to apply power to a new module because doing so violates power redundancy, i.e. with the strict option, you will be prevented from adding any modules which would result in a situation where a single power module failure would put you over budget.
Hope to be useful to communicate with customer.
Thanks,
