3560 Switch 8port gig.. platform port-asic stats drop in Queue 14:

[Tarjeet Singh]

I just noticed that my 8 port 3560 switch has CPU utilization upto 70% from last 72 hours. Now it is low from last 1 hour. I tried to troubleshoot and found drops in CPU queue 14 (dstat)

  Supervisor TxQueue Drop Statistics

    Queue  0: 0

    Queue  1: 0

    Queue  2: 0

    Queue  3: 0

    Queue  4: 0

    Queue  5: 0

    Queue  6: 0

    Queue  7: 0

    Queue  8: 0

    Queue  9: 0

    Queue 10: 0

    Queue 11: 0

    Queue 12: 0

    Queue 13: 0

    Queue 14: 31254589

    Queue 15: 0

3560-switch#sh processes cpu sorted 5min

CPU utilization for five seconds: 17%/1%; one minute: 17%; five minutes: 17%

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

138   142479763  27173553             5243 10.19% 10.23% 10.21%   0 Hulc LED Process

   4    10998664    616614               17837  0.00%  0.95%   0.82%   0 Check heaps

   8     2352884     21404               109927  0.00%  0.15%   0.14%   0 Licensing Auto U

  64       32308  54325817               0.09%  0.07%  0.05%   0 RedEarth Rx Mana

145        2279      3059             45  0.69%  0.13%  0.05%   1 SSH Process

329         844    728223              1  0.09%  0.01%  0.00%   0 IP SLAs Event Pr

  37      496989     21407      23216  0.00%  0.03%  0.00%   0 Per-minute Jobs

236         109      5146              21  0.00%  0.00%  0.00%   0 TCP Timer

181       92950    453519         204  0.00%  0.01%  0.00%   0 IP Input

Now CPU is not high from last 1 hour. but Queue 14 drops are incrementing fast. What could be issue that is casuing CPU utilization or this queue 14 would be casuing cpu issue.. Please advice.

[paolo bevilacqua]

Wrong forum, post in "lan and switching". You can move your post using the actions panel on the right.

[Tarjeet Singh]

thanks paolo, i tried but in search it is showing Routing, lan and switching so i have moved it

[Tarjeet Singh]

Finally i fixed it. there was IOS bug, Hulc LED Process was casuing high utilization. I upgraded my IOS from S2 to S3 and issue resolved

Bug in c3560c405ex-universalk9-mz.122-55.EX2

Upgraded version c3560c405ex-universalk9-mz.122-55.EX3

Now there is also IOS version 15.150 out for 8 port 3560 compact switch. its been only few day so i will wait for two months before upgrade my switch.