Hulc LED Process stressing my 2960 cisco switch

Discussion in 'Cisco' started by H.A.M, May 16, 2008.

  1. H.A.M

    H.A.M Guest

    Hi all,

    I have four 2960 switches that have the same "problem" that is : their
    CPU couter is always at 20%.

    Result of a "sh proc cpu | excl 0.00% 0.00% 0.00%" :

    -------------------------------
    CPU utilization for five seconds: 20%/1%; one minute: 18%; five
    minutes: 18%
    PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
    4 25706 7904 3252 0.00% 0.02% 0.00% 0 Check
    heaps
    9 69647 393005 177 0.15% 0.13% 0.11% 0 ARP
    Input
    15 11134 23296 477 0.15% 0.04% 0.01% 0 HC
    Counter Timer
    23 4266 1774 2404 0.15% 0.03% 0.00% 0 Logger
    28 12382 291453 42 0.00% 0.01% 0.00% 0 Net
    Input
    29 26351 15572 1692 0.00% 0.02% 0.04% 0 Compute
    load avg
    37 68213 4014589 16 0.00% 0.07% 0.11% 0 Fifo
    Error Detec
    51 6369 2333729 2 0.00% 0.01% 0.00% 0 HLFM
    address ret
    61 3079 34723 88 0.31% 0.07% 0.04% 0 hpm
    main process
    64 15682 77252 202 0.00% 0.02% 0.02% 0 hpm
    counter proc
    86 3299591 1775954 1857 13.09% 12.41% 12.20% 0 Hulc
    LED Process
    90 29268 15554 1881 0.00% 0.04% 0.02% 0 HQM
    Stack Proces
    129 12432 115997 107 0.00% 0.01% 0.04% 0
    Spanning Tree
    174 10288 32491 316 0.00% 0.02% 0.00% 0 IP SNMP
    176 13856 16245 852 0.00% 0.01% 0.00% 0 SNMP
    ENGINE
    -------------------------------

    we notice that the process "Hulc LED Process" is getting most of the
    cpu time... strange....

    I tried to change the display mode on the frontend of the switch
    (DUPLEX display instead of activity display) and this process stop
    getting cpu time... But, I can't let the display on "duplex mode" or
    "speed mode", after 30 seconds, the switch changes the display mode
    automaticaly to "activity mode".

    I've done a lot of debug trace and network trace, and notice nothing
    special. But there must be something wrong....

    I have several others switch (same 2960 with the same IOS), and no
    problem !?!

    Is there someone with the same problem ?
    Is there a way to force the switch to stay in Duplex or speed display
    mode to avoid this ?
    Is this a known bug ?

    Thanks in advance for your help.

    H.

    PS : Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version
    12.2(37)SE1, RELEASE SOFTWARE (fc1)
    H.A.M, May 16, 2008
    #1
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