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Beginner

Hulc LED Process

Hi All,..

I saw in my switch there is a hig processor CPU in PID 110, could you please advice me what it is? and how to solve this?

Device type : WS-C3560G-48PS

-----------------------------------------

Switch#sh proc cpu sor

CPU utilization for five seconds: 23%/0%; one minute: 22%; five minutes: 21%

PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process

110 11990607 1436516 8347 15.97% 15.83% 15.84% 0 Hulc LED Process

-----------------------------------------

Thanks

36 REPLIES 36
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Hall of Fame Community Legend

What IOS version are you using?

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I'm on 15.2(1)E1 .. already tried all other 15.x code releases but am running into bugs preventing proper ISE install. ISE functions perform very well in 15.2(1)E1 ... but this process is beating up the switch until it crashes. This is amazingly frustrating considering the amount of time I've put into finding good code for ISE, and when I find it there's another bug that prevents use.

I tried to fall back to 12.2(58)SE2 and ran into a bug affecting voice in a bad way.. ISE dACL function was also jacked in that code under certain conditions.

I like ISE, think it's a great technology but I cannot seem to complete a wired implementation with 2960S switches... I need to find some decent code!

Kind Regards,

Kevin Sheahan, CCIE # 41349

Kind Regards, Kevin Sheahan, CCIE # 41349
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Hall of Fame Community Legend

Kevin,

Try 12.2(55)SE8. 

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Hi Leo

I have the same issue with C2960S (C2960S-UNIVERSALK9-M), Version 12.2(55)SE5

 think this problem would be in any ios  whatever version of ios you use...

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Hello,

I see a very old thread with no solution whatsoever.
Here I'm with the same bug.
CPU utilization for five seconds: 36%/0%; one minute: 36%; five minutes: 36%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
150 208445391 21765845 9576 20.00% 20.24% 20.25% 0 Hulc LED Process

Version 15.2(2)E7

I tried shutting down the unused SFP ports but no change.
Any other workaround with this?

Thanks,
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This issue apparently still exists 5 years later. Am I to assume there's no fix?

 

THanks!

 

 

Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(55)SE13, RELEASE SOFTWARE (fc1)
cisco WS-C3750X-48P (PowerPC405) processor (revision A0) with 262144K bytes of memory.

and:

 

Switch#show proc cpu sorted
CPU utilization for five seconds: 30%/0%; one minute: 32%; five minutes: 31%
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process 
 157      144952     17189       8432 15.97% 15.85% 14.99%   0 Hulc LED Process 
  74       42822      6925       6183  4.31%  4.48%  4.29%   0 RedEarth Tx Mana 
  73       16814     11675       1440  1.75%  1.82%  1.70%   0 RedEarth I2C dri 
 117       14642       859      17045  1.43%  1.56%  1.50%   0 hpm counter proc 
 219        6896      2014       3424  0.95%  0.70%  0.68%   0 Spanning Tree    
 168        3091       193      16015  0.31%  0.32%  0.31%   0 HQM Stack Proces 
  10        1033      3392        304  0.31%  0.12%  0.10%   0 ARP Input        
 109          93       867        107  0.15%  0.01%  0.00%   0 Hulc ILP Alchemy 
  34         255      1712        148  0.15%  0.01%  0.00%   0 Net Background   
  81         183       870        210  0.15%  0.02%  0.00%   0 hrpc -> response 
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Hello,

 

it is assumed normal behavior:

 

3560X/3750X: Elevated CPU usage due to Hulc LED process
CSCtn42790
Description
Symptom:

Hulc LED Process uses 15-30% CPU on Catalyst 3560X/3750X platforms.

Conditions:

The is seen in 12.2(53)SE releases or later.

Workaround:

This is an expected behavior and there is no workaround.

Further Problem Description:

The "Hulc LED" process does following tasks:

- Check Link status on every port
- If the switch supports POE, it checks to see if there is a Power Device (PD)
detected
- Check the status of the transceiver
- Update Fan status
- Set Main LED and ports LEDs
- Update both Power Supplies and RPS
- Check on system temperature status

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