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Silver

WS-C3750X-48PF-S CPU Utilization

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

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Gold

WS-C3750X-48PF-S CPU Utilization

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.

13 REPLIES
Hall of Fame Super Gold

WS-C3750X-48PF-S CPU Utilization

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

Silver

WS-C3750X-48PF-S CPU Utilization

IOS 15.0-1 SE

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Posted by WebUser Mohammed Khalifa

Hall of Fame Super Gold

WS-C3750X-48PF-S CPU Utilization

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.

Cisco Employee

Re: WS-C3750X-48PF-S CPU Utilization

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

Hall of Fame Super Gold

Re: WS-C3750X-48PF-S CPU Utilization

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.

Cisco Employee

Re: WS-C3750X-48PF-S CPU Utilization

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

Hall of Fame Super Gold

WS-C3750X-48PF-S CPU Utilization

not suppose to affect the traffic forwarding or your network.

So is this a cosmetic bug?

Cisco Employee

Re: WS-C3750X-48PF-S CPU Utilization

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

Hall of Fame Super Gold

WS-C3750X-48PF-S CPU Utilization

Thanks Diego.  (2 x +5)

Cisco Employee

Re: WS-C3750X-48PF-S CPU Utilization

you are very welcome!

Silver

WS-C3750X-48PF-S CPU Utilization

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

Hall of Fame Super Gold

WS-C3750X-48PF-S CPU Utilization

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.

Hall of Fame Super Gold

WS-C3750X-48PF-S CPU Utilization

Thanks for the ratings.

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