Thermal Shutdown Support in Instant AP

ArubaAP-555 and AP-535Instant AP 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 Instant AP 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 slave Instant AP operates beyond the recommended temperature threshold, the Virtual AP profile is disabled. Once the slave Instant AP 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 slave Instant AP and the virtual controller does not restore after five times, the slave Instant AP remains in the shutdown state until it is manually turned on.

In swarm mode, when the master Instant AP operates beyond the recommended temperature threshold, it reboots with the Reboot due to Thermal Management message. Once the master Instant AP attains the optimum temperature again, it turns into a slave Instant AP, 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 slave Instant AP and the virtual controller does not restore after five times, the slave Instant AP remains in the shutdown state until it is manually turned on.

In swarm mode, when the master Instant AP operates beyond the recommended temperature threshold and the number of Instant APs is one in the swarm scale, the Virtual AP profile is disabled. Once the master Instant AP 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 master Instant AP does not reboot after five times, the master Instant AP remains in the shutdown state until it is manually turned on.

In standalone mode, when the Instant AP operates beyond the recommended temperature threshold, the Virtual AP profile is disabled. Once the Instant AP 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 Instant AP 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:

a. Set the filter to Global.

b. Under Manage, click Devices, and then click Access Points.

A list of access points is displayed in the List view.

c. Click an access point listed under Device Name.

The dashboard context for the access point 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 Instant AP, 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 Instant AP. For example, Thermal management enabled or Thermal management disabled.

In Aruba Central, the thermal shutdown feature is supported on Instant APs running Aruba Instant 8.6.0.0 or later versions.