Cisco 4900 High CPU-OBFL INTR slot-1 process

[ปลาวาฬทราย RMUTT CPE IX]

 PID Runtime(ms)     Invoked      uSecs   5Sec   1Min   5Min TTY Process

318   468462204    17412256      26904 86.61% 23.31% 14.51%   0 OBFL INTR slot-1

[Mark Malone]

Can you post further info that does not look high its only 14.51% over 5 mins , the 86.61% is for the 5sec output this can be caused by anything even someone taking a show tech

If you think you have high cpu can you post show proc cpu sorted and show proc cpu history

[Madhukrishnan Gopinathan Nair]

Hello Tigma,

OBFL is logs onboard failures. Can you please let us know how frequent this is happening.

Please have a check for interface errors and see if any port is taking a lot of errors. Sometimes that can cause it.

show interfaces counters errors

Also please share the below

sh process cpu sorted | ex 0.00%

sh ver

Thanks,

Madhu

[ปลาวาฬทราย RMUTT CPE IX]

show process cpu history in attach file
 

sho int cou err

Port            CrcAlign-Err Dropped-Bad-Pkts Collisions   Symbol-Err

Te1/3                1525111                0          0    554695871

Te1/8                      0                0          0          148

Port               Undersize  Oversize  Fragments      Jabbers

Te1/3                      0         0       7272            0

Port            Deferred-Col False-Car  Carri-Sen Sequence-Err

Te1/3                      0         0          0       710174

sh process cpu sorted | ex 0.00%

sh process cpu sorted | ex 0.00%

sh process cpu sorted | ex 0.00%

sh process cpu sorted | ex 0.00%

[Madhukrishnan Gopinathan Nair]

Hello,

You really needs to keep an eye on Te1/3 to see these counters are incrementing or not.

If they are investigate physical layer to see if there is a problem (SFP, cable, patch panel etc).

This could potentially add to CPU due to OBFL.

Also please attach

sh loggin onboard

Thanks,

Madhu.

****Please rate all useful posts***

[ปลาวาฬทราย RMUTT CPE IX]

sho proc cpu sor | ex 0.00%

I will provide to you again when it high cpu.

sho ver
Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500e-ENTSERVICESK9-M), Version 15.1(2)SG1, RELEASE SOFTWARE (fc3)

Thank you very much.

[ปลาวาฬทราย RMUTT CPE IX]

sho int cou err

Port            CrcAlign-Err Dropped-Bad-Pkts Collisions   Symbol-Err

Te1/3                1525230                0          0    554734565

Te1/8                      0                0          0          148

Port               Undersize  Oversize  Fragments      Jabbers

Te1/3                      0         0       7275            0

Port            Deferred-Col False-Car  Carri-Sen Sequence-Err

Te1/3                      0         0          0       710236

sho log onboard
PID: WS-C4900M         , VID: 2  , SN: JAE16520xxx

--------------------------------------------------------------------------------
UPTIME SUMMARY INFORMATION
--------------------------------------------------------------------------------
First customer power on : 03/11/2011 23:47:20
Total uptime            :   1 years  18 weeks   2 days  20 hours   0 minutes
Total downtime          :   2 years  44 weeks   5 days   5 hours  18 minutes
Number of resets        : 32
Number of slot changes  : 1
Current reset reason    : 0x0
Current reset timestamp : 01/22/2014 05:05:50
Current slot            : 1
Current subslot         : 0
Current uptime          :   1 years  17 weeks   5 days  20 hours   0 minutes
--------------------------------------------------------------------------------
Reset  |        |
Reason | Count  |
--------------------------------------------------------------------------------
No historical data to display
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
ENVIRONMENT SUMMARY INFORMATION
--------------------------------------------------------------------------------
MM/DD/YYYY HH:MM:SS   Ins count    Rem count                                    
                    ------------------------------------------------------------
                    VID PID                  TAN          Serial No             
--------------------------------------------------------------------------------
No environment summary data to display
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
TEMPERATURE SUMMARY INFORMATION
--------------------------------------------------------------------------------
Number of sensors          : 2
Sampling frequency         : 1 minutes
Maximum time of storage    : 10 minutes
--------------------------------------------------------------------------------
Sensor                            |   ID  | Maximum Temperature 0C
--------------------------------------------------------------------------------
air outlet                          0     45
air inlet                           1     32
--------------------------------------
Temp                         Sensor ID
0C     1    2
--------------------------------------
No historical data to display
--------------------------------------

--------------------------------------------------------------------------------
INTERRUPT SUMMARY INFORMATION
--------------------------------------------------------------------------------
Name                                              |  ID | Offset | Bit |  Count
--------------------------------------------------------------------------------
ipp high                                             10   0x9003     0     9400
ipp low                                              11   0x8000     0     9399
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------
ERROR MESSAGE SUMMARY INFORMATION
--------------------------------------------------------------------------------
Facility-Sev-Name      | Count | Persistence Flag
MM/DD/YYYY HH:MM:SS
--------------------------------------------------------------------------------
No historical data to display
--------------------------------------------------------------------------------

Thank you very much.

[Madhukrishnan Gopinathan Nair · Accepted solution]

Ok. Lets try to fix errors on Te1/3 and see this issue solves with that.

These errors are mostly due to physical layer issue. Please arrange to have a check/replace cables SFP etc on both ends of this connection first.

Thanks,

Madhu

[ปลาวาฬทราย RMUTT CPE IX]

I changed another X2 to the Te1/4 instead, I haven’t seen the issue anymore.

Thank you very much.

[Madhukrishnan Gopinathan Nair]

Hi ,

Thanks for updating. Please mark it as answered if this post has helped you.

Regards,

Madhu