Intelligent Power and Temperature Monitoring (IPTM)

Intelligent Power and Temperature Monitoring (IPTM) is a combination of Intelligent Power Monitoring (IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources.) and Intelligent Thermal Management (ITM) features that optimize AP operations in changing power and temperature conditions. These features adapt the performance of the AP to provide consistent network experience according to the power usage and operating temperature of the AP.

To manage this optimization, a set of reduction steps may be configured and associated with a priority value. When triggered, IPTM applies the sequence of reduction steps as defined by the priority definition until the AP is functioning within the power budget and threshold temperature. This happens dynamically as IPTM constantly monitors the power consumption and temperature of the AP and applies the corresponding reduction steps.

IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources. and ITM must be enabled separately using the CLI Command-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions.. However, the reduction steps applied for IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources. and ITM are the same and are configured using the ipm-power-reduction-step-prio ipm-step <reduction step> priority <priority value> parameter in the ipm command. The IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources. and ITM settings configured for the AP can be viewed using the show running configuration command.

Important Points to Remember

• By default, IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources. and ITM are disabled.
• IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources. must be enabled for ITM to function.
• ITM must be disabled before disabling IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources..
• By default, IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources. and ITM do not apply any restrictions on the AP. The reduction steps must be explicitly configured using the ipm-power-reduction-step-prio ipm-step <reduction step> priority <priority value> parameter in the ipm command.
• Initally, all functionalities of the AP are turned on by IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources. and ITM. The reduction steps are triggered only when the power consumption of the AP exceeds the threshold associated with the power budget or when the temperature of the AP goes beyond the threshold value.
• IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources. and ITM do not override pre-existing settings that restrict AP functionality. For example, when the USB Universal Serial Bus. USB is a connection standard that offers a common interface for communication between the external devices and a computer. USB is the most common port used in the client devices. port is disabled in the provisioning profile, the AP will not enable the functionality when the reduction steps are retracted.

Intelligent Power Management

Intelligent Power Management (IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources.)  measures the power utilization of the AP and dynamically adapts to the power budget. IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources. dynamically limits the power requirement of the AP as per the available power resources. This is in contrast to the existing static power management method where the power profiles such as POE-AF, POE-AT, PoE Power over Ethernet. PoE is a technology for wired Ethernet LANs to carry electric power required for the device in the data cables. The IEEE 802.3af PoE standard provides up to 15.4 W of power on each port.-DC, or LLDP Link Layer Discovery Protocol. LLDP is a vendor-neutral link layer protocol in the Internet Protocol suite used by network devices for advertising their identity, capabilities, and neighbors on an IEEE 802 local area network, which is principally a wired Ethernet. are hard-coded for each AP.

The following CLI Command-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions. command enables IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources.:

Reporting Power Values to Central

Instant APs can measure and periodically report their power information such as current, average, minimum, and maximum power consumption values sampled over the previous one minute and report the same to Aruba Central. When Instant APs measure the power values, they send the information to the conductor Instant AP over a PAPI Process Application Programming Interface. PAPI controls channels for ARM and Wireless Intrusion Detection System (WIDS) communication to the conductor controller. A separate PAPI control channel connects to the local controller where the SSID tunnels terminate. message. This information is saved and sent to Central.

The following CLI Command-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions. command is used to view the power monitoring information:

Intelligent Thermal Management

Intelligent Thermal Management (ITM) measures the internal temperature of the AP and dynamically adapts operations to reduce the internal temperature. The operations of the AP are throttled down when the internal temperature exceeds the maximum threshold temperature. The reduction steps applied to control the temperature are defined using the ipm-power-reduction-step-prio ipm-step parameter in the ipm command.

The following CLI Command-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions. command enables ITM:

Configuring Reduction Steps

The reduction steps and their order is configured using the ipm-power-reduction-step-prio ipm-step <reduction step> priority <priority value> parameter in the ipm command. The priority values range from 1-16, with 1 being the highest and 16 being the lowest. When triggered, the reduction steps are applied sequentially starting with the reduction step that is assigned the highest priority value. The reduction steps are applied only when the AP exceeds the power budget or threshold temperature.

Points to Remember

• Starting from Aruba Instant 8.11.0.0, all references to the radio bands Band refers to a specified range of frequencies of electromagnetic radiation. (2.4 GHz Gigahertz., 5 GHz Gigahertz., secondary 5 GHz Gigahertz., and 6 GHz Gigahertz. bands Band refers to a specified range of frequencies of electromagnetic radiation.) are removed and replaced with radio indices (0, 1, or 2) that are associated with radio power restrictions. For more information on the command output, see the Aruba Instant 8.x CLI Command-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions. Reference Guide.

• Some reduction steps are only available for select AP platforms. For example, radio_2_disable step is applicable to any AP that has three radios such as AP-555 and AP-655, irrespective of the frequency band Band refers to a specified range of frequencies of electromagnetic radiation. under which they operate.

• Assigning a high-priority value to a maximum reduction step like cpu Central Processing Unit. A CPU is an electronic circuitry in a computer for processing instructions._throttle_75 reduces the power and temperature level sooner than a minimum or medium reduction step like cpu Central Processing Unit. A CPU is an electronic circuitry in a computer for processing instructions._throttle_25 or cpu Central Processing Unit. A CPU is an electronic circuitry in a computer for processing instructions._throttle_50.

• To reduce the CPU Central Processing Unit. A CPU is an electronic circuitry in a computer for processing instructions. power gradually, the smallest reduction should be allocated a higher priority value so that the minimum reduction step takes place first. For example, assigning the cpu_throttle_25 or radio_1_power_3dB parameter a higher priority level than cpu_throttle_50 or radio_1_power_6dB reduces the performance gradually as opposed to a drastic reduction.

The following table lists the reduction steps and the corresponding CLI Command-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions. parameter in the default order of application. However, the reduction steps can be modified as per the requirement:

Table 1: CLI Parameters for Reduction Steps

Reduction Step	CLI Command
Disable the USB Universal Serial Bus. USB is a connection standard that offers a common interface for communication between the external devices and a computer. USB is the most common port used in the client devices. port	disable_usb
Disable PSE port 2	disable_pse2
Disable PSE port 1	disable_pse1
Disable the 2nd Ethernet Ethernet is a network protocol for data transmission over LAN. port	disable_alt_eth
Reduce the radio chains of radio 0 to 4x4	radio_0_chain_4x4
Reduce the power of radio 2 by 3dB from maximum	radio_2_power_3dB
Reduce the power of radio 0 by 3dB from maximum	radio_0_power_3dB
Reduce the power of radio 1 by 3dB from maximum	radio_1_power_3dB
Reduce the power of radio 2 by 6dB from maximum	radio_2_power_6dB
Reduce the power of radio 0 by 6dB from maximum	radio_0_power_6dB
Reduce the power of radio 1 by 6dB from maximum	radio_1_power_6dB
Reduce the radio chains of radio 2 to 3x3	radio_2_chain_3x3
Reduce the radio chains of radio 0 to 3x3	radio_0_chain_3x3
Reduce the radio chains of radio 1 to 3x3	radio_1_chain_3x3
Reduce the CPU Central Processing Unit. A CPU is an electronic circuitry in a computer for processing instructions. frequency to 75%	cpu_throttle_75
Reduce the radio chains of radio 2 to 2x2	radio_2_chain_2x2
Reduce the radio chains of radio 1 to 2x2	radio_1_chain_2x2
Reduce the radio chains of radio 0 to 2x2	radio_0_chain_2x2
Reduce the radio chains of radio 2 to 1x1	radio_2_chain_1x1
Reduce the radio chains of radio 1 to 1x1	radio_1_chain_1x1
Reduce the radio chains of radio 0 to 1x1	radio_0_chain_1x1
Disable radio 2	radio_2_disable
Disable radio 0	radio_0_disable
Disable radio 1	radio_1_disable
Reduce the CPU Central Processing Unit. A CPU is an electronic circuitry in a computer for processing instructions. frequency to 50%	cpu_throttle_50
Reduce the CPU Central Processing Unit. A CPU is an electronic circuitry in a computer for processing instructions. frequency to 25%	cpu_throttle_25
The default steps are applied based on the capability of the AP. If the AP does not support a feature, the next supported step is applied. For instance, AP-615 access points do not have PSE ports or a second Ethernet Ethernet is a network protocol for data transmission over LAN. port, hence the radio_0_chain_4x4 reduction step is applied after disable_usb.

The following CLI Command-Line Interface. A console interface with a command line shell that allows users to execute text input as commands and convert these commands to appropriate functions. commands configures the reduction steps and their priority:

Verifying the Configuration

To verify the IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources. and ITM configuration, use the show running-config command:

To view the power consumption statistics of the AP and the status of IPM Intelligent Power Monitoring. IPM is a feature supported on certain APs that actively measures the power utilization of an AP and dynamically adapts to the power resources. configuration, use show ap power-mgmt-statistics command: