Router Hardware Management Guide for Cisco 8000 Series Routers, Cisco IOS XR Release

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Router Hardware Management Guide for Cisco 8000 Series Routers, Cisco IOS XR Release

Ability to set maximum power limit for the router

Updated: July 1, 2026

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Describes the power-mgmt configured-power-capacity command.

The ability to set maxinum power limit for the router is a power management feature that

  • prevents power consumption from exceeding infrastructure capacity

  • mitigates the risk of system brownouts, and

  • enables administrators to restrict router power usage based on specific infrastructure requirements.

Table 1. Feature history table

Feature Name

Release Information

Feature Description

Ability to Set Maximum Power Limit for the Router

Release 25.4.1

Introduced in this release on: Fixed Systems (8010 [ASIC: A100])(select variants only*)

*This feature is supported on:

  • 8011-32Y8L2H2FH

  • 8011-12G12X4Y-A/D

Ability to Set Maximum Power Limit for the Router

Release 25.1.1

Introduced in this release on: Fixed Systems (8700 [ASIC: K100], 8010 [ASIC: A100])(select variants only*)

*This feature is supported on:

  • 8011-4G24Y4H-I

  • 8712-MOD-M

Ability to Set Maximum Power Limit for the Router

Release 24.4.1

Introduced in this release on: Fixed Systems(8200, 8700); Modular Systems (8800 [LC ASIC: P100]) (select variants only*).

*This feature is now supported on:

  • 8212-32FH-M

  • 8711-32FH-M

  • 88-LC1-12TH24FH-E

Ability to Set Maximum Power Limit for the Router

Release 7.11.1

We are introducing functionality to set the maximum power limit for a router to improve power management and distribution in the PSUs. It prevents a router from using more than the configured power and also gives the ability to limit the reservation pool regardless of how many power supplies are present. In the previous releases, the ability to prevent a router from using more than a configured amount of power was unavailable.

This feature introduces this change:

CLI

Guidelines and restrictions for setting maximum power limit for the router

These guidelines and restrictions apply when you set maximum power limit for the router:

  • The ability to set maxinum power limit feature is not applicable to fixed-port routers.

  • With this feature, you can manage system power based on a configured maximum power capacity. This ensures that the router does not allocate more power than the infrastructure supports.

  • It also gives you the ability to limit power to a router according to your infrastructure requirements. The max power capacity parameter doesn't allow power consumed by the hardware to cross the configured amount.

  • The criteria to set maximum power limit is that the value must be set between the current allocated power and the available maximum power at time of configuration.

  • You must set the maximum power limit value between the current allocated power and the maximum power available at the time of configuration.

  • The power-mgmt configured-power-capacity command allows the configuration of the maximum power limit.

  • The PKT_INFRA-FM-3-FAULT_MAJOR : ALARM_MAJOR :Power reservation exceeds configured power alarm alerts administrators when the power reservation exceeds the configured maximum power capacity.

    Note

    This alarm is extremely rare and triggers only when hardware, such as a fan tray, is inserted and granted power without a specific request.