High CPU usage on Cisco 3560 and Cisco 2960

[davidaweiser]

Hey Cisco guys,

I'm having issue with one stubborn process that is consuming nearly all the CPU on all of my switches. I tried googling it, but had no luck. Maybe y'all can help me?

The process is "hulc nrgyz PD di"

I have no idea what anything after the hulc means.

Thanks much!

-David Weiser

[smehrnia]

hey,

can you put a copy of your 5 second cpu usage output?

[Leo Laohoo]

What's the IOS?

Sent from Cisco Technical Support iPad App

[evergreenajay]

May be ios up gradation fix the issue..

Sent from Cisco Technical Support iPhone App

[epaniagu]

Hi David,

Process hulc nrgyz PD di is EnergyWise PD discovery process. If you are experiencing high cpu utiliaztion verify you are not hitting the following bug:

CSCth62705    EnergyWise PD discovery process caused CPU high.

Symptom:

The  switch experiences high CPU usage when new domain members or EnergyWise  capable endpoints with a different EnergyWise domain are added to a  existing domain and EtherChannel is configured.

Conditions:

A  combination of cross domain traffic introduced via a endpoint or domain  member and Etherchannel configuration between a access and distribution  switch that has EnergyWise enabled at both ends is necessary to  reproduce the problem.

Workaround:

The workaround would be to disable the port channel in the case where the high CPU usage is seen.

Here you can read more information on EnergyWise features:

http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps10195/white_paper_c11-568212.pdf

http://www.cisco.com/en/US/docs/switches/lan/energywise/phase1/ios/configuration/guide/configex.html

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