Hello,
After the IOS upgrade to the version 16.3.6 we are facing the high CPU usage. I read a lot of threads, but most of them are regarding the fed or stack-mgr.. However, this is not my case. Here are some outputs:
switch#sh proc cpu sort | e 0.0
CPU utilization for five seconds: 79%/27%; one minute: 78%; five minutes: 78%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
74 693856697 103699318 6691 51.53% 50.76% 50.71% 0 IOSD ipc task
232 1673795 2779649 602 0.15% 0.11% 0.10% 0 Spanning Tree
415 4250033 15075319 281 0.15% 0.29% 0.29% 0 SISF Main Thread
233 2276152 14326325 158 0.15% 0.15% 0.15% 0 UDLD
switch#show processes cpu platform sorted
CPU utilization for five seconds: 77%, one minute: 76%, five minutes: 76%
Core 0: CPU utilization for five seconds: 71%, one minute: 78%, five minutes: 77%
Core 1: CPU utilization for five seconds: 73%, one minute: 76%, five minutes: 75%
Core 2: CPU utilization for five seconds: 77%, one minute: 75%, five minutes: 75%
Core 3: CPU utilization for five seconds: 79%, one minute: 75%, five minutes: 75%
Pid PPid 5Sec 1Min 5Min Status Size Name
--------------------------------------------------------------------------------
1693 609 82% 82% 82% R 1861427200 linux_iosd-imag
4391 3276 70% 70% 70% R 608165888 smd
532 31941 29% 29% 29% S 539328512 fman_rp
28948 27867 11% 11% 11% R 632299520 fman_fp_image
16499 14239 8% 8% 8% S 2538545152 fed main event
3453 2314 5% 5% 5% S 264454144 repm
11 2 3% 4% 3% S 0 rcuc/1
10056 8833 2% 2% 2% S 6594560 btrace_rotate.s
...
For me, it seems the issue is related to the dot1.x config as we have a switch with no used port and this one has no issue.. The access port config looks like:
interface GigabitEthernet1/0/2
switchport access vlan 2910
switchport mode access
switchport voice vlan 2950
authentication event fail action next-method
authentication event server dead action reinitialize vlan 2910
authentication event server dead action authorize voice
authentication event server alive action reinitialize
authentication host-mode multi-auth
authentication open
authentication order dot1x mab
authentication priority dot1x mab
authentication port-control auto
authentication violation restrict
mab
no snmp trap link-status
dot1x pae authenticator
dot1x timeout tx-period 5
storm-control broadcast level 1.00
spanning-tree portfast
spanning-tree bpduguard enable
Can you please help with this one? Thanks.
