Reset Search
 

 

Article

Amber light on LED of Mgmt Ethernet port without RJ-45 cable.

« Go Back

Information

 
TitleAmber light on LED of Mgmt Ethernet port without RJ-45 cable.
Symptoms
Amber light on LED of Mgmt Ethernet port without RJ-45 cable connected.
Environment
  • BDX8
  • BDX-MM1
Cause
During power initialization, the link indicator LED will be turned ON(flash amber/orange) for short moment and if the initialization process gets completed at that moment when the LED was on it is possible for the LED to be left turned ON(flash amber/orange) without a CAT-5 cable plugged in.
Without a CAT-5 cable plugged in, the Linux Ethernet driver does not go through steps to set/reset the link indicator LED and hence the LED state (either ON or OFF) can be ignored if there is no cable plugged into mgmt port.
Resolution
You can test by making a connection to the mgmt. port on which has "Amber" led.
For example,
  • Connect laptop or switch to the mgmt. port
  • Or connect between MM-A and MM-B each other if available
If the "Amber" is gone and "green" led is turned on after making the connection and no led after disconnecting the cable, then the mgmt. port can be considered as it was in "stuck" state as explained above.
Additional notes
This document specifies the behavior of LEDs that are labeled: 
http://documentation.extremenetworks.com/exos_16/exos_16_2/troubleshooting/c_leds.shtml
That would be applicable to the column of four LEDs, and the column of two LEDs, on the left of the MM.

This document goes a bit further and specifies behavior of the unlabeled Management Port LEDs: http://documentation.extremenetworks.com/blackdiamond/blackdiamond/modules/r_management-module-leds.shtml
  • The “Amber” Activity LED is the top-left LED on the RJ-45 MGMT Jack
  • The Green Link LED is the top-right LED on the RJ-45 MGMT Jack.

Feedback

 

Was this article helpful?


   

Feedback

Please tell us how we can make this article more useful.

Characters Remaining: 255