Fan Noise on Cisco Catalyst 1000

[elchavito]

Hello,

I have a Cisco C1000-48T-4G-L deployed and what I notice is that the fan speeds ramp up and down as though the switch. I would expect that under "normal" operation, the fan rpms would be steady and consistent. I have been reading only and the behavior may be normal. But I wanted to reach out and see if this is normal. If I look at the env output, the read normal:

SWITCH: 1
SYSTEM FAN SPEED is OK
SYSTEM TEMPERATURE is OK
System Temperature Value: 53 Degree Celsius
PHY Temperature Value: 49 Degree Celsius
DDR Temperature Value: 51 Degree Celsius
System Temperature State: GREEN
Yellow Threshold : 67 Degree Celsius
Red Threshold : 70 Degree Celsius

SWITCH: 1
PID: Built-in
System Power:(Watts) 60
Max Power Usage:(Watts) 54
Maximum Heat Dissipation: (Watts) 44
Power Supply Status: Good

Any suggestions would be greatly appreciated.

[balaji.bandi]

These all changes will be depends on the environment where the switch install and how this processing the traffic.

check the datasheet normal decibels

[SirChris]

Give it a little time, I’ve found that when turning on new hardware: switches, firewalls, network equipment the fans will run, and after about a week, depending on the machine they stay at a steady state. Just keep working on configuring and do the back end work, worst case: you set the system up and have all your notes, at end if still not what you are expecting apply an exchange or try and find a different model/same model/new unit etc. 

[jimmel419]

I can confirm that this is still an issue with the C1000 series 48-port model on IOS 15.2.7E12. It's really bizarre that Cisco hasn't fixed this even though it was first reported over 3 years ago.

[Leo Laohoo]

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@jimmel419 wrote:
It's really bizarre that Cisco hasn't fixed this even though it was first reported over 3 years ago.

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Because Cisco wants to get rid of classic IOS and the Catalyst 1000 is one of the last vestige.