Locating a Device Using Port LEDs

Locating a device in a rack of many, interconnected devices can be a difficult task. The LED ON/OFF feature allows you to turn on all the port LEDs to display steady green, irrespective of the port status. When all the port LEDs are turned on to steady green, locating a specific device, a standalone unit, stacked unit, or PE unit, becomes easier.

In a stacking environment or SPX system, the LED ON/OFF feature can be enabled from the active unit, standby unit, member unit, or PE unit. If the port LEDs are turned on from the active unit, all the port LEDs of the active unit and the standby units are turned on. To identify or locate a specific unit, you must specify the unit ID of the respective unit. After locating the device, you can either turn off all the port LEDs or set the port LEDs to the default status. The default LED status is the status of the LEDs according to the current status mode, if the status mode is supported. If the status mode is not supported, the link status or port status is considered to be the default LED status. The default LED status behavior also applies after the device is rebooted when all port LEDs are turned on using the led on command.

Note: The LED ON/OFF feature is supported only on the platforms where LED status mode is available. The status mode is supported on the ICX 7150, ICX 7650, and ICX 7850 devices.

LED ON/OFF Considerations

The following details must be considered when port LEDS are turned on to locate a device:

  • The status mode feature cannot be used when port LEDs are turned on to locate a device. If the status mode is changed, the LED status will be changed to the respective mode.
  • If the status of the port changes due to any events such as link up or link down, USB plug in or USB plug out, optical interruption, and so on, the LED status of that particular port LED is changed.

Parent topic: Operations, Administration, and Maintenance