05-13-2015 08:49 AM - edited 03-05-2019 01:27 AM
We have 2960X's running 15.2(3)E with high CPU usage (75%/27%)
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 52 WS-C2960X-48FPS-L 15.2(3)E C2960X-UNIVERSALK9-M
2 52 WS-C2960X-48FPS-L 15.2(3)E C2960X-UNIVERSALK9-M
VoIP calls for anyone on this switch have clicks, delay, and often no dial tone.
I see high CPU utilization seems to have been an issue for a couple years. We have several 2960x stacks but have only seen this issue on this stack. All 2960x switches are running 15.2(3)E.
05-13-2015 08:58 AM
Can you post the show proc cpu sorted to see whats causing the cpu issue please
05-13-2015 09:27 AM
05-14-2015 12:44 AM
hi yes seen that before on 3750s thats a bug , it effects 2960 as well , no workaround in Cisco bug but there is one in the link provided , whats your IOS version ?
https://tools.cisco.com/bugsearch/bug/CSCsi78581 3750 says its basically fictitious that it does not effect your hardware
https://heggel4.wordpress.com/2012/06/07/high-cpu-loads-cisco-2960/
2960 bug release
Hulc LED Process uses 6-15% CPU on Catalyst 2960/2960S 24/48-port switch
05-14-2015 12:52 AM
it does not look like that bug exists in the suggested IOS version release for your model below but there is a couple of other hulc bugs but you might not trigger them depending on your setup
12-15-2015 04:35 AM
Having this exact same problem with SW version 15.2(3)E2 and a stack of five WS-C2960X-48LPD-L. Please can you let me know if you found a fix for this?
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