Enabling USB Port on Access Points

USB Port as Power Source for Access Points

Some Cisco APs have a USB port that can act as a source of power for some USB devices. The power can be up to 2.5W; if a USB device draws more than 2.5W of power, the USB port shuts down automatically. The port is enabled when the power draw is 2.5W and lower. Refer to the datasheet of your AP to check if the AP has a USB port that can act as a source of power.


Note

Both IW6300 and ESW6300 APs have a USB port that can act as a source of power up to 4.5W for some USB devices.

Note

The controller records the last five power-overdrawn incidents in its logs.

Caution

When unsupported USB device is connected to the Cisco AP, the following message is displayed:

The inserted USB module is not a supported device. The behavior of this USB device and the impact to the Access Point is not guaranteed. If Cisco determines that a fault or defect can be isolated due to the use of third-party USB modules installed by a customer or reseller, Cisco may withhold support under warranty or support program under contract. In the course of providing support for Cisco networking products, the end user may be required to install Cisco-supported USB modules in the event Cisco determines that removing third-party parts will assist Cisco in diagnosing root cause for troubleshooting purposes. Cisco also reserves the right to charge the customer per then-current time and material rates for services provided to the customer when Cisco determines, after having provided such services, that an unsupported device caused the root cause of the defective product

Configuring an AP Profile (CLI)

Procedure

  Command or Action Purpose

Step 1

configure terminal

Example:

Device# configure terminal

Enters global configuration mode.

Step 2

ap profile ap-profile

Example:

Device(config)# ap profile xyz-ap-profile

Configures an AP profile and enters the AP profile configuration mode.

Note

 

When you delete a named profile, the APs associated with that profile will not revert to the default profile.

Step 3

usb-enable

Example:

Device(config-ap-profile)# usb-enable

Enables USB for each AP profile.

Note

 

By default, the USB port on the AP is disabled.

Use the no usb-enable command to disable USB for each AP profile.

Step 4

end

Example:

Device(config-ap-profile)# end

Returns to privileged EXEC mode. Alternatively, you can also press Ctrl-Z to exit global configuration mode.

Configuring USB Settings for an Access Point (CLI)

Procedure

  Command or Action Purpose

Step 1

enable

Example:

Device# enable

Enters privileged EXEC mode.

Step 2

ap name ap-name usb-module

Example:

Device# ap name AP44d3.xy45.69a1 usb-module

Enables the USB port on the AP.

Use the ap name ap-name no usb-module command to disable the USB port on the AP.

Note

 

If you are using Cisco Catalyst 9105AXW AP and if you enable the USB port (.3at PoE-in), it is not possible to enable the USB PoE-out at the same time.

Step 3

ap name ap-name usb-module override

Example:

Device# ap name AP44d3.xy45.69a1 usb-module override

Overrides USB status of the AP profile and considers the local AP configuration.

Use the ap name ap-name no usb-module override command to override USB status of the AP and consider the AP profile configuration.

Note

 

You can configure the USB status for an AP only if you enable USB override for it.

Configuring USB Settings for an Access Point (GUI)

Procedure

Step 1

Choose Configuration > Wireless > Access Points.

Step 2

In the Access Points window, click the name of the AP.

Step 3

In the Edit AP window, click the Interfaces tab.

Step 4

In the USB Settings section, configure the USB Module State as either of the following:

  • ENABLED: Enables the USB port on the AP
  • DISABLED: Disables the USB port on the AP

Note

 

If you are using Cisco Catalyst 9105AXW AP and if you enable the USB port (.3at PoE-in), it is not possible to enable the USB PoE-out at the same time.

Step 5

Configure USB Override as either of the following:

  • ENABLED: Overrides USB status of the AP profile and considers the local AP configuration
  • DISABLED: Overrides USB status of the AP and considers the AP profile configuration

Note

 

You can configure the USB status for an AP only if you enable USB override for it.

Step 6

Click Apply & Update to Device.

Monitoring USB Configurations for Access Points (CLI)

  • To view the inventory details of APs, use the following command:

    show ap name ap-name inventory

    The following is a sample output:

    Device# show ap name AP500F.8059.1620  inventory
NAME: AP2800    , DESCR: Cisco Aironet 2800 Series (IEEE 802.11ac) Access Point
PID: AIR-AP2802I-D-K9  ,  VID: 01,  SN: XXX1111Y2ZZZZ2800
NAME: SanDisk    , DESCR: Cruzer Blade
PID: SanDisk  ,  SN: XXXX1110010, MaxPower: 224

  • To view the summary of an AP module, use the following command:

    show ap module summary

    The following is a sample output:

    Device# show ap module summary
AP Name               External Module       External Module PID   External Module Description   
----------------------------------------------------------------------------------------------
AP500F.1111.2222      Enable                SanDisk               Cruzer Blade

  • To view the USB configuration details for each AP, use the following command:

    show ap name ap-name config general

    The following is a sample output:

    Device# show ap name AP500F.111.2222 config general

.
.
.
USB Module Type.................................. USB Module
USB Module Status................................ Disabled
USB Module Operational State..................... Enabled
USB Override …………………………….. Enabled

  • To view status of the USB module, use the following command:

    show ap profile name xyz detailed

    The following is a sample output:

    Device# show ap profile name xyz detailed
USB Module               : ENABLED