process usage

[suthomas1]

There are high process usage (>90%) seen on cisco 3650 switches , these are a stack of 5 switches.

fed shows high count in the 40%'s. is that considered normal & expected?

we have checked some cisco bugs , but the version is not applicable to us.

4120 L 3184581 1491625 728 47.42 48.12 48.32 1088 fed
4120 L 2 5602 3416385 1426466 0 23.98 24.16 24.18 0 fed-ots-main

Appreciate all inputs.

[paul driver]

Hello

Can you post the output of the following:
sh process cpu sorted

[Leo Laohoo]

What firmware is the stack running on?
There are so many bugs regarding high CPU.

[Giuseppe Larosa · Accepted solution]

Hello suthomas1,

what you see is not normal as FED process and the other FED related process are using more then 60% CPU.

there are several bugs with high cpu caused by FED process like the following

3650 Switch Stack Sees High CPU with Certain Port Configuration

CSCut27292

Symptom:
High CPU under the Fed and IOSd processes, possible high enough to cause crashes on the switch.

Conditions:
Port-control is set to be unidirectional, host mode is set to multi-auth, and the same VLAN # is configured for the voice and data VLAN on a given port.

Workaround:
Changing any of the three conditions above should keep the issue from occurring:

- Set host mode to multi-host instead of multi-auth
- Set the port control direction to bidirectional, rather than unidirectional
- Avoid configuring the same # VLAN for a port's access and voice VLAN

or

High CPU observed in punjectrx fed-ots-main thread

CSCuz57493

Symptom:
High CPU utilization due to FED and punjectrx. These are some possible processes, please have TAC confirm this defect as there could be multiple reasons why this occurs.

High Processes are likely to be one of the following:

FED/fed-ots-main
FED/Punject Rx
FED/XCVR
FED/XCVRPoll
stack-mgr/Replenish OOB
stack-mgr/OOBnd RX

Conditions:
This can be easily seen in the switches/stacks that has long uptime (several months).

and other also.

To be noted for the second one to occur is enough to have a stack with an uptime of several mounths.

The first one I have mentioned is related to a specific 802.1X configuration so it might not apply to your case.

As Asked by Leo provide the IOS XE version running on the stack and check the uptime

you can post show version to check both info.

Hope to help

Giuseppe