ā02-26-2013 07:48 PM - edited ā03-07-2019 11:57 AM
hi
i am seeing very high utilization on a random basis on the stack. and the logs indicate me that there is a pattern where there is a stack power cable shows inserted (which was never unplugged) followed by sudden spike in the utilization.
001018: *Mar 6 16:21:22.138: %PLATFORM_STACKPOWER-6-CABLE_EVENT: Switch 4 stack power cable 1 inserted
001019: *Mar 6 18:18:37.982: %SYS-1-CPURISINGTHRESHOLD: Threshold: Total CPU Utilization(Total/Intr): 99%/1%, Top 3 processes(Pid/Util): 390/72%, 239/6%, 125/4%
001020: *Mar 6 18:20:17.983: %SYS-1-CPUFALLINGTHRESHOLD: Threshold: Total CPU Utilization(Total/Intr) 16%/1%.
001021: *Mar 6 19:29:34.303: %SYS-5-CONFIG_I: Configured from console by helpdesk on vty0 (159.207.161.102)
001022: *Mar 6 19:38:11.133: %PLATFORM_STACKPOWER-6-CABLE_EVENT: Switch 4 stack power cable 1 inserted
001023: *Mar 6 20:20:23.067: %SYS-1-CPURISINGTHRESHOLD: Threshold: Total CPU Utilization(Total/Intr): 99%/2%, Top 3 processes(Pid/Util): 390/73%, 239/5%, 125/3%
001024: *Mar 6 20:23:12.987: %SYS-1-CPUFALLINGTHRESHOLD: Threshold: Total CPU Utilization(Total/Intr) 24%/2%.
I would be unplugging the power stack cables to test this but wanted to share this you if someone has seen the same pattern before?
Regards,
Mohit
Solved! Go to Solution.
ā02-27-2013 11:11 PM
Hi Wilson,
I did follow the document you mentioned about
http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note0#sthash.Wor721hd.dpuf and following that I have added the following on the switch:
snmp-server view cutdown iso included
snmp-server view cutdown at excluded
snmp-server view cutdown snmpUsmMIB excluded
snmp-server view cutdown snmpVacmMIB excluded
snmp-server view cutdown snmpCommunityMIB excluded
snmp-server view cutdown ip.21 excluded
snmp-server view cutdown ip.22 excluded
snmp-server view cutdown ciscoFlashMIB excluded
snmp-server community Public view cutdown RO
snmp-server community Private view cutdown RW
By doing the above, I still see spike in the cpu util when i run sh proc cpu command. however, it seems that the spike doesnt stay high for that long period cos it never shows up in the sh logg output. This wasnt the case before.
But I was thinking why couldnt I stop spike completely in first place if thats possible.
Anyway, here is the show version output.(Removed the serial details for security reason)
SwitchA#sh ver
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 15.0(1)SE3, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Wed 30-May-12 13:41 by prod_rel_team
ROM: Bootstrap program is C3750E boot loader
BOOTLDR: C3750E Boot Loader (C3750X-HBOOT-M) Version 12.2(58r)SE, RELEASE SOFTWARE (fc1)
SP-DS-01 uptime is 6 days, 16 hours, 53 minutes
System returned to ROM by power-on
System restarted at 22:07:27 AWST Thu Feb 21 2013
System image file is "flash:/c3750e-universalk9-mz.150-1.SE3/c3750e-universalk9-mz.150-1.SE3.bin"
This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.
A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html
If you require further assistance please contact us by sending email to
License Level: ipbase
License Type: Permanent
Next reload license Level: ipbase
cisco WS-C3750X-12S (PowerPC405) processor (revision A0) with 524288K bytes of memory.
Processor board ID FDO1635V046
Last reset from power-on
60 Virtual Ethernet interfaces
1 FastEthernet interface
80 Gigabit Ethernet interfaces
10 Ten Gigabit Ethernet interfaces
The password-recovery mechanism is enabled.
512K bytes of flash-simulated non-volatile configuration memory.
Base ethernet MAC Address : 6C:20:56:0C:9E:00
Motherboard assembly number : 73-13329-03
Motherboard serial number : Fxxxxxxxxx
Model revision number : A0
Motherboard revision number : B0
Model number : WS-C3750X-12S-S
Daughterboard assembly number : 800-32727-03
Daughterboard serial number : Fxxxxxxxxx
System serial number : FDxxxxxxxx
Top Assembly Part Number : 800-35090-02
Top Assembly Revision Number : B0
Version ID : V02
CLEI Code Number : CMMFG00ARB
Hardware Board Revision Number : 0x04
Switch Ports Model SW Version SW Image
------ ----- ----- ---------- ----------
* 1 18 WS-C3750X-12S 15.0(1)SE3 C3750E-UNIVERSALK9-M
2 18 WS-C3750X-12S 15.0(1)SE3 C3750E-UNIVERSALK9-M
3 18 WS-C3750X-12S 15.0(1)SE3 C3750E-UNIVERSALK9-M
4 18 WS-C3750X-12S 15.0(1)SE3 C3750E-UNIVERSALK9-M
5 18 WS-C3750X-12S 15.0(1)SE3 C3750E-UNIVERSALK9-M
Switch 02
---------
Switch Uptime : 6 days, 16 hours, 54 minutes
Base ethernet MAC Address : 6C:20:56:0C:2F:80
Motherboard assembly number : 73-13329-03
Motherboard serial number : FDxxxxxxxxxxxxx
Model revision number : A0
Motherboard revision number : B0
Model number : WS-C3750X-12S-S
Daughterboard assembly number : 800-32727-03
Daughterboard serial number : FDxxxxxxxxxxxx
System serial number : FDOxxxxxxxx
Top assembly part number : 800-35090-02
Top assembly revision number : B0
Version ID : V02
CLEI Code Number : CMMFG00ARB
License Level : ipbase
License Type : Permanent
Next reboot licensing Level : ipbase
Switch 03
---------
Switch Uptime : 6 days, 16 hours, 54 minutes
Base ethernet MAC Address : 6C:20:56:0C:47:80
Motherboard assembly number : 73-13329-03
Motherboard serial number : FDxxxxxxxxx
Model revision number : A0
Motherboard revision number : B0
Model number : WS-C3750X-12S-S
Daughterboard assembly number : 800-32727-03
Daughterboard serial number : FDxxxxxxxxxx
System serial number : FDxxxxxxxxxx
Top assembly part number : 800-35090-02
Top assembly revision number : B0
Version ID : V02
CLEI Code Number : CMMFG00ARB
License Level : ipbase
License Type : Permanent
Next reboot licensing Level : ipbase
Switch 04
---------
Switch Uptime : 6 days, 16 hours, 54 minutes
Base ethernet MAC Address : FC:99:47:C5:68:00
Motherboard assembly number : 73-13329-03
Motherboard serial number : Fxxxxxxxx
Model revision number : A0
Motherboard revision number : B0
Model number : WS-C3750X-12S-S
Daughterboard assembly number : 800-32727-03
Daughterboard serial number : Fxxxxxxxx
System serial number : Fxxxxxxxxx
Top assembly part number : 800-35090-02
Top assembly revision number : B0
Version ID : V02
CLEI Code Number : CMMFG00ARB
License Level : ipbase
License Type : Permanent
Next reboot licensing Level : ipbase
Switch 05
---------
Switch Uptime : 6 days, 16 hours, 54 minutes
Base ethernet MAC Address : 6C:20:56:0C:07:80
Motherboard assembly number : 73-13329-03
Motherboard serial number : Fxxxxxxxx
Model revision number : A0
Motherboard revision number : B0
Model number : WS-C3750X-12S-S
Daughterboard assembly number : 800-32727-03
Daughterboard serial number : Fxxxxxxxxx
System serial number : FDxxxxxxxx
Top assembly part number : 800-35090-02
Top assembly revision number : B0
Version ID : V02
CLEI Code Number : CMMFG00ARB
License Level : ipbase
License Type : Permanent
Next reboot licensing Level : ipbase
Configuration register is 0xF
ā02-28-2013 05:10 AM
Mohit,
Let's do the following: monitor the stack for 24hours or so, just to check if the high cpu utilization comes back, I would say by now the switch should be stable after the configuration changes.
Remember based on Cisco Docs the CPU utilizacion baseline is 50%.
Keep an eye on the performance and show process cpu, show log and let me know how it goes.
Wilson.
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