Catalyst 3850 Beacon (Blue UID) Turn ON

[lomonaco]

Hi Everyone,

     If a press the button UDI in the 3850, I can see the Beacon light blue to help the switch identification.

      How can I turn on this blue led identifier using the command line ?

Thanks in Advanced

  Andre Gustavo Lomonaco

[Mikel Ward]

I do not have a 3850 in front of me to play with, but have you tried any variations of 'locater-led' / 'no locator-led' that is a Cisco Nexus command for something similar. You could also try 'beacon'  /  'no beacon'

[xamerten · Accepted solution]

Below is the syntax for the blue beacon on 3850

To turn a blue beacon on in cli

Switch(config)#

hw-module beacon on switch 1

To turn a blue beacon off in cli

Switch(config)#

hw-module beacon off switch 1

From the actual switch

Switch(config)#hw-module beacon on switch 1
Switch(config)#
*Nov 14 14:10:43.358: %PLATFORM_LED-6-BEACON_LED_TURNED: Switch 1 Beacon LED turned ON
Switch(config)#hw-module beacon off switch 1
*Nov 14 14:10:52.374: %PLATFORM_LED-6-BEACON_LED_TURNED: Switch 1 Beacon LED turned OFF

Kind regards

Xavier Mertens

[Neil Wurzel]

Hi Xavier,

I am get the below  error message, is there nay way to make any of the LED blink via CLI to get an field engineer to identify the switch? Could it be an IOS version release, I have Version 03.03.05SE?

Switch(config)#hw-module beacon on switch 1
 % Beacon LED is not Supported on this Platform !!!

Regards,

Neil

[xamerten]

Hi Neil,

Not all 3850 switches have this capabilities today. We started to introduce the blue beacon when we released the fiber models (S and XS).

You can find this note in the hardware installation guide

http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3850/hardware/installation/guide/b_c3850_hig/b_c3850_hig_chapter_01.html

Table 11 UID/Beacon LED Indicator (Applies Only to the WS-C3850-12S, WS-C3850-24S , WS-C3850-12XS, and WS-C3850-24XS Switches)

I do believe the mGig based switches should have this as well, but I need to cross check to keep myself honest.

Kind regards,

Xavier

[Neil Wurzel]

Hi Xavier,

Thank you for the prompt response and for the clarification. Is there any other way to identify a 3850 switch i.e getting all the LEDs to light up as it does when doing a P.O.S.T?

Regards,

Neil

[xamerten]

Hi Neil,

I'm not aware of any diagnostic command that could achieve this on a 3850 and the interface beacon is not available either.

In case I would come up with something I'll update this post.

Kind regards,

Xavier

[Neil Wurzel]

Hi Xavier,

Thank you very much for the update.

Regards,

Neil

[Milosz Jablonski]

thanks for that 

I have different model of switch - 3650 with ios 16.3.3 on it

what would the command be for this box? regular "beacon" in the interface would not work

have tried hw-module beacon and no luck either

any suggestions?

many thanks