Thermal Shutdown Support in IAP

ArubaAP-555 and AP-535 Instant Access Point (IAP) devices are equipped with an internal thermal sensor. The sensor initiates a shutdown when the operating temperature crosses the temperature threshold recommended for an Instant AP. When an IAP operates under thermal management, all the radios are in Disabled mode in the AP Health Bar.

In swarm mode, the thermal shutdown support is as follows:

• In swarm mode, when the member IAP operates beyond the recommended temperature threshold, the Virtual AP profile is disabled. Once the member IAP attains the optimum temperature again, it reboots with the Recovery from Thermal Management Mode message, and then reconnects with the virtual controller. This process of reboot and reconnection is executed for five times. If the connection between the member IAP and the virtual controller does not restore after five times, the member IAP remains in the shutdown state until it is manually turned on.
• In swarm mode, when the conductor IAP operates beyond the recommended temperature threshold, it reboots with the Reboot due to Thermal Management message. Once the conductor IAP attains the optimum temperature again, it turns into a member IAP, reboots with the Recovery from Thermal Management Mode message, and then reconnects with the virtual controller. This process of reboot and reconnection is executed for five times. If the connection between the member IAP and the virtual controller does not restore after five times, the member IAP remains in the shutdown state until it is manually turned on.
• In swarm mode, when the conductor IAP operates beyond the recommended temperature threshold and the number of IAPs is one in the swarm scale, the Virtual AP profile is disabled. Once the conductor IAP attains the optimum temperature again, it reboots with the Recovery from Thermal Management Mode message. This process of reboot is executed for five times. If the conductor IAP does not reboot after five times, the conductor IAP remains in the shutdown state until it is manually turned on.

In standalone mode, when the IAP operates beyond the recommended temperature threshold, the Virtual AP profile is disabled. Once the IAP attains the optimum temperature again, it reboots with the Recovery from Thermal Management Mode message. This process of reboot is executed for five times. If the IAP does not reboot after five times, it remains in the shutdown state until it is manually turned on.

Thermal Shutdown Events

To view the thermal shutdown events, complete the following steps:

1. In the Network Operations app, select one of the following options:

   To select a group, label, site, or all devices in the filter, set the filter to one of the options under Groups, Labels, or Sites. For all devices, set the filter to Global.

   The dashboard context for the selected filter is displayed. To select a device in the filter:

   1. Set the filter to Global.
   2. Under Manage, click Devices, and then click Access Points.

   3. Click an AP listed under Device Name.

   The dashboard context for the AP is displayed.

2. Under Analyze, click Alerts & Events.

   The Alerts & Events page is displayed in the List view.

3. Click the Events tab.

   A list of events is displayed in the Events table.

When the thermal shutdown feature is either enabled or disabled in an IAP, the Events table displays the following details:

• The Event Type column includes the AP Thermal Shutdown type which can be used to filter thermal shutdown events.
• The Description column includes the status of the thermal shutdown feature in the IAP. For example, Thermal management enabled or Thermal management disabled.