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Cisco Bug: CSCtc60988 - C3560E-12D: High CPU utilization due to Hulc LED Process

Last Modified

Feb 19, 2018

Products (104)

  • Cisco Catalyst 3560-E Series Switches
  • Cisco Catalyst 2960-24TC-L Switch
  • Cisco ME 3400-24TS-A Switch
  • Cisco Catalyst 3560E-24TD-S Switch
  • Cisco Catalyst 3560E-48PD-SF Switch
  • Cisco Catalyst 3750V2-24PS Switch
  • Cisco Catalyst 3560E-48PD-E Switch
  • Cisco ME 3400EG-2CS-A Switch
  • Cisco Catalyst 2960-48TT-S Switch
  • Cisco Catalyst 3560-12PC-S Compact Switch
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Known Affected Releases


Description (partial)

C3560E-12D: High CPU utilization due to Hulc LED Process

This symptom is seen when 12 TwinGig Converter and 24 GLC-T 
are inserted to WS-C3560E-12D(default configuration / no link). 

------------------ show process cpu ------------------
 PID Runtime(ms)   Invoked      uSecs   5Sec   1Min   5Min TTY Process 
 135      280322     18742      14956 17.09% 17.07% 11.63%   0 Hulc LED Process
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