×

Warning message

  • Cisco Support Forums is in Read Only mode while the site is being migrated.
  • Cisco Support Forums is in Read Only mode while the site is being migrated.

Controller port error, Interface Gi3/0/28: Power Controller reports Short detected

Endorsed Question
Aug 20th, 2014
User Badges:

Hi All,

Recently deployed  Cisco Catalyst 3850-48P-E Stack Switch.  I am receiving a lot of syslog messages 

''''Controller port error, Interface Gi3/0/28: Power Controller reports Short detected''''

Switch Software version : 03.03.02SE RELEASE SOFTWARE (fc2)

 

I have IP Phones and some access-points on these switches to supply power to. These messages have been populating recently only.

 

Can anyone kindly help with details of this issue and resolution as well ?

 

Many Thanks

Sandeep

Cisco Endorsed by prashpat
Sandeep Verma about 2 years 12 months ago

Thanks Leo,

 

Here's the output

TDR test last run on: August 21 09:34:08

Interface Speed Local pair Pair length        Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Gi3/0/28  100M  Pair A     0    +/- 1  meters Pair A      Normal
                Pair B     0    +/- 1  meters Pair B      Normal
                Pair C     2    +/- 1  meters N/A         Open
                Pair D     23   +/- 1  meters N/A         Short

 

 

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 4.8 (7 ratings)
Loading.
Leo Laohoo Wed, 08/20/2014 - 22:21
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

Do this: 

  1. Command:  test cable tdr interface Gi3/0/28;
  2. Wait for approximately 5 to 7 seconds; 
  3. Command:  sh cable tdr interface Gi3/0/28; and
  4. Post the output to #3.
Sandeep Verma Wed, 08/20/2014 - 22:35
User Badges:

Thanks Leo,

 

Here's the output

TDR test last run on: August 21 09:34:08

Interface Speed Local pair Pair length        Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Gi3/0/28  100M  Pair A     0    +/- 1  meters Pair A      Normal
                Pair B     0    +/- 1  meters Pair B      Normal
                Pair C     2    +/- 1  meters N/A         Open
                Pair D     23   +/- 1  meters N/A         Short

 

 

Leo Laohoo Sun, 08/24/2014 - 22:56
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

Post deleted by author due to low rating by OP.

Leo Laohoo Sun, 08/24/2014 - 22:15
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

Annnnd for that you rated my assistance a 4-star?????

Soporte Acuntia Wed, 09/10/2014 - 04:24
User Badges:

Hi Leo,

Could you put the post again?

I have the same problem in my device  and I don´t know the cause of the issue.

Thanks in advance.

Regards.

Ivan.

Leo Laohoo Wed, 09/10/2014 - 15:33
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

Hi Ivan, 

 

Open a new thread and send me a private message (PM) of the link.   I will be happy to help you.

 

I will not post the recommendation here because the OP has marked my original recommendation with a low rating.  If other people see my response with a low rating they might think that it's the incorrect or wrong course of action.  

Charlie Jones Fri, 12/19/2014 - 06:32
User Badges:

Hi Leo,

 

Would you be able to assist me with this same issue?  I am seeing a port with the following error:

Dec 19 09:11:39.405: %ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Gi3/0/4: Power Controller reports Short detected

 

 

Leo Laohoo Fri, 12/19/2014 - 16:04
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

Would you be able to assist me with this same issue? 

Hi Charlie, 

 

I am happy to assist but please open a new thread.  I am not inclined to make any recommendation on this thread after the OP has rated my troubleshooting and diagnostics with a very pathetic score. 

 

Anyone who gets to see my response with a low score will think of my post as BS.  

 

If you are able to create a new thread and PM me the link, I will respond.

Soporte Acuntia Wed, 09/10/2014 - 04:23
User Badges:

Hi Leo,

Could you put the post again?

I have the same problem in my device  and I don´t know the cause of the issue.

Thanks in advance.

Regards.

Ivan.

johnnylingo Tue, 06/16/2015 - 23:50
User Badges:
  • Bronze, 100 points or more

I'm seeing this too on a 3650 switch with an AIR-LAP1142N-A-K9 attached.  Was working fine until a few days ago.

 

Does this indicate someone swapped in a bad cable, or could it be a false positive?  It's in a remote office 8,000 miles away, so visually inspecting this won't be easy. 

 

#show cable-diagnostics tdr interface gigabitEthernet 1/0/1
TDR test last run on: June 17 12:06:37

Interface Speed Local pair Pair length        Remote pair Pair status
--------- ----- ---------- ------------------ ----------- --------------------
Gi1/0/1   auto  Pair A     1    +/- 1  meters N/A         Short               
                Pair B     1    +/- 1  meters N/A         Short/Crosstalk     
                Pair C     0    +/- 1  meters N/A         Normal              
                Pair D     0    +/- 1  meters N/A         Normal

 

Leo Laohoo Wed, 06/17/2015 - 00:56
User Badges:
  • Super Gold, 25000 points or more
  • Hall of Fame,

    The Hall of Fame designation is a lifetime achievement award based on significant overall achievements in the community. 

  • Cisco Designated VIP,

    2017 LAN, Wireless

The patch cable nearest the switch is bad, Johnny.  Get someone to replace the cable and chop it up. 

Actions

This Discussion