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Cisco Catalyst C3850

sami.poles
Level 1
Level 1

Dear all,

      I hope you find this as well, I have cisco catalyst c3850 that consume so much CPU below the output of consumption 

show processes cpu sort | exclude 0.0

Core 0: CPU utilization for five seconds: 90%; one minute: 91%;  five minutes: 91%

Core 1: CPU utilization for five seconds: 50%; one minute: 67%;  five minutes: 63%

Core 2: CPU utilization for five seconds: 66%; one minute: 40%;  five minutes: 41%

Core 3: CPU utilization for five seconds: 11%; one minute: 24%;  five minutes: 29%

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

6058   2941908     14897360 1053   26.84    27.62    27.33    1088  fed               

6658   2270817     69286159 410    20.83    20.63    21.30    0     pdsd              

10784  2846952     41158661 238    5.63     5.86     5.82     34816 iosd              

6666   1914053     39280851 464    0.44     0.38     0.42     0     ffm               

6059   3228123     20130352 35     0.24     0.13     0.11     0     platform_mgr      

10779  649731      30149585 17     0.15     0.14     0.15     0     wcm               

10780  1052257     54891904 80     0.10     0.13     0.11     0     table_mgr

======================================================================================

show processes cpu detailed process iosd sort | ex 0.0

Core 0: CPU utilization for five seconds: 91%; one minute: 90%; five minutes: 90%

Core 1: CPU utilization for five seconds: 100%; one minute: 69%; five minutes: 64%

Core 2: CPU utilization for five seconds: 27%; one minute: 43%; five minutes: 42%

Core 3: CPU utilization for five seconds: 12%; one minute: 23%; five minutes: 28%

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

                                               (%)       (%)      (%)                 

10784  L           2853462     4115883 238    6.76      6.07    5.87    34816 iosd              

10784  L 2  10784  1481459     1560486 0      5.65      4.72    4.69    34816 iosd              

10784  L 3  11724  2504509     2376256 0      1.05      1.29    1.14    0     iosd.fastpath     

476    I           476657      3546644 0      1.00      0.66    0.55    0       EIGRP-IPv4 Hello  

239    I           3097718     4267331 0      0.77      0.33    0.33    0       IP ARP Retry Ager 

240    I           802933      9711233 0      0.66      0.77    0.77    0       IP Input          

324    I           2633308     1704338 0      0.55      0.88    0.88    0       IP SLAs XOS Event P

220    I           3099977     1699819 0      0.33      0.33    0.44    0       Tunnel IOSd shim DB

363    I           3324105     2626947 0      0.33      0.11    0.11    0       MMA DB TIMER      

71     I           2467148     4591617 0      0.33      0.11    0.11    0       Net Background    

30     I           3297152     7445455 0      0.33      1.33    1.55    0       ARP Input         

231    I           1502253     2338905 0      0.11      0.11    0.22    0       CDP Protocol      

207    I           3322065     2626947 0      0.11      0.11    0.11    0       VRRS Main thread

=================================================================================

#show processes cpu detailed process fed sorted | ex 0.0

Core 0: CPU utilization for five seconds: 88%; one minute: 88%; five minutes: 90%

Core 1: CPU utilization for five seconds: 91%; one minute: 62%; five minutes: 64%

Core 2: CPU utilization for five seconds: 33%; one minute: 46%; five minutes: 44%

Core 3: CPU utilization for five seconds: 32%; one minute: 42%; five minutes: 32%

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

                                               (%)       (%)      (%)                 

6058   L           3075578     1489827 1053   27.76     28.34   27.62   1088  fed               

6058   L 3  6506   2396351     1690684 0      23.92     23.82   24.04   0     fed-ots-main      

6058   L 0  11560  39523       1105888 0      1.06      1.06    1.15    0     PunjectTx         

6058   L 0  6534   1762034     3350916 0      0.91      1.01    0.50    0     IntrDrv           

6058   L 1  11559  1206410     2766111 0      0.82      1.33    0.82    0     PunjectRx         

6058   L 3  6509   3557633     4457595 0      0.58      0.57    0.58    0     fed-ots-nfl       

6058   L 2  6513   1199369     3149679 0      0.29      0.32    0.31    0     Timer

=====================================================================================================

note that software version is 03.07.02E

any idea to solve this issue?

2 Replies 2

sami.poles
Level 1
Level 1

any help!!!

A quick bug scrub of your IOS version led me to this.

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCux39490

With the information you provided I have a high level of confidence that this is the culprit.  Recommended mitigation in the short term is to reload the affected switch, long term fix is to move to 3.7.4E+.  It is also listed as fixed in 16.3.6.

It is worth noting that 3.7.x has gone end of vulnerability/security support as of May 1st 2018.  Depending on your feature set you would be wise to move to 16.3.6 or 16.6.3.  16.3.6 is a current gold star release as of the date of this post but it is not suitable for all feature sets.  Please read the release notes for open caveats before upgrading. 

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