WS-C3750X-48PF-S CPU Utilization

[fb_webuser]

i have two c3750x-48-pf-s stack but i need to know if there are anybody else on the group have the same switches as i just want to know the CPU utilization on them....

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Posted by WebUser Mohammed Khalifa

[Leo Laohoo]

I've got several.  What IOS are you using?

[fb_webuser]

IOS 15.0-1 SE

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Posted by WebUser Mohammed Khalifa

[Leo Laohoo]

15.0(1)SE????

Upgrade to 15.0(1)SE2.  There are several critical CPU bugs with 15.0(1)SE and 15.0(1)SE1.  I wouldn't recommend anyone touching these two IOS.

[Diego Acuna]

Hello

There is an existing expected behavior on 3560x/3750x. A bug was open due to this condition but it is expected and no work around. If you do a show proc cpu sorted | exc 0.00 most likely you will see the process "hulc led process" been around 15%-30%. This is totally normal and all the ios images are affected. The 12.2(55)SE4 seems to be a bit less affected.

This condition is due to the architecture of the switch.

Hope this helps

Sent from Cisco Technical Support iPhone App

[Leo Laohoo]

This condition is due to the architecture of the switch.

Hey Diego,

Are you allowed to "share" the meaning of this? 

NOTE:  I'm not being sarcastic or confrontational.  I am interested to know if you can give more details because I, for one, am very keen to know more.

[Diego Acuna]

Hello

Basically the internal architecture of the switch is different agains the other 3750 flavors that we have. I am not really sure what is exactly the difference inside but it is because of this. What i can tell you is not to worry about it since all X series have this behavior that is not suppose to affect the traffic forwarding or your network.

Sent from Cisco Technical Support iPhone App

[Leo Laohoo]

not suppose to affect the traffic forwarding or your network.

So is this a cosmetic bug?

[Diego Acuna]

you are right my friend. I tested with almost all the ios images and the 12.2(55)SE4 gives a bit less cpu utilization

Sent from Cisco Technical Support iPhone App

[Leo Laohoo]

Thanks Diego.  (2 x +5)

[Diego Acuna]

you are very welcome!

[fb_webuser]

i just want to thank all of you for your responses.... but i`m facing a problem with the CPU utilization on the mentioned switches even after changing the IOS.

i believe it is a product problem that should be taken into consideration.

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Posted by WebUser Mohammed Khalifa

[Leo Laohoo · Accepted solution]

If you are still having high CPU with 15.0(1)SE2, then downgrade your IOS to 12.2(55)SE4 or 12.2(55)SE5.

Make sure your appliance can support these IOS versions.

[Leo Laohoo]

Thanks for the ratings.