[c-nsp] High Cpu Utilisation: Cat 4006

Amol Sapkal amolsapkal at gmail.com
Sat Mar 18 02:16:44 EST 2006


Hi Sagar,

It is difficult to troubleshoot your switch's problem without knowing the
setup. What I would suggest (and if it is OK with your team!), shut down the
VLAN interfaces one-by-one and you would be able to zero upon the rogue
VLAN. Once you do that, check out the ports belonging to this VLAN. You
might need to physically disconnect cables on these ports.

You will need to locate the access-switch/VLAN that is the source of so much
traffic.



-Amol



On 18 Mar 2006 07:05:24 -0000, Gangasagar Amula <sagar_cisco at rediffmail.com>
wrote:
>
>
> Hi Amol,
>
> Can you guide me for the below so that we can trace the problem and arrive
> to a solution.
>
> Regards,
> Sagar.
>
> On Sat, 18 Mar 2006 Amol Sapkal wrote :
>
> >Hi,
> >
> >193 3234873477  2059011136 17684    44.20%  44.13%  43.53% 0  Packet
> >forwardi
> >194 538929086  250881678  9209      5.43%  5.73%  6.21% 0  Switching
> >overh
> >
> >
> >Looking at above, you would probably like to look at these:
> >
> >Broadcast storms
> >A physical looping on your switch
> >
> >
> >
> >-Amol
> >
> >
> >
> >On 18 Mar 2006 06:31:03 -0000, Gangasagar Amula <
> sagar_cisco at rediffmail.com>
> >wrote:
> > >
> > > Hi All,
> > > The Cpu utilisation of our L3 Switch is going very high. approx 85 %
> > > Please let me know if you get to know something from the below input.
> > > Thanks and Regards,
> > > Sagar.
> > >
> > >
> > > ****************** show version ******************
> > > WS-C4006 Software, Version NmpSW: 6.4(15)
> > > Copyright (c) 1995-2005 by Cisco Systems, Inc.
> > > NMP S/W compiled on Jan  6 2005, 12:55:47
> > > GSP S/W compiled on Jan 06 2005, 10:54:00
> > > System Bootstrap Version: 5.4(1)
> > > Hardware Version: 1.3  Model: WS-C4006  Serial #: FOX05025207
> > > Mod Port Model      Serial #              Versions
> > > --- ---- ---------- --------------------
> ---------------------------------
> > > 1  2    WS-X4013  JAB050609AU          Hw : 1.3
> > >                                        Gsp: 6.4(15.0)
> > >                                        Nmp: 6.4(15)
> > > 2  48  WS-X4148-RJ JAE045003U3          Hw : 2.3
> > > 3  48  WS-X4148-RJ JAE0450038T          Hw : 2.3
> > > 4  48  WS-X4148-RJ JAE045003GD          Hw : 2.3
> > > 5  48  WS-X4148-RJ JAE044801V8          Hw : 2.3
> > > 6  34  WS-X4232-L3 JAB044601ST          Hw : 1.5
> > >      DRAM                    FLASH                  NVRAM
> > > Module Total  Used    Free    Total  Used    Free    Total Used  Free
> > > ------ ------- ------- ------- ------- ------- ------- ----- -----
> -----
> > > 1      65536K  35911K  29625K  16384K  9138K  7246K  480K  280K  200K
> > > Uptime is 145 days, 12 hours, 23 minutes
> > > ****************** show flash ******************
> > > -#- ED --type-- --crc--- -seek-- nlen -length- -----date/time------
> name
> > > 1 .. ffffffff 3fb14273  3e4084  17  3817476 Feb 13 2001 22:43:35
> > > cat4000.6-1-
> > > 1.bin
> > > 2 .. ffffffff f089d927  82c500  18  4490236 Mar 19 2005 06:04:52
> > > cat4000.6-4-
> > > 15.bin
> > > 7420672 bytes available (8307968 bytes used)
> > >
> > >
> > > ****************** show proc mem ******************
> > >
> > > Memory Used:  3164288
> > >      Free:  6861728
> > >      Total:  10026016
> > > PID        TTY        Allocated  Freed      Holding    Process
> > > ---------- ---------- ---------- ---------- ---------- ---------------
> > > 1          -2        17858304  16029888  1828416    Kernel and Idle
> > > 2          -2        96        0          96        Flash MIB Updat
> > > 3          -2        536128    14016      522112    SynConfig
> > > 4          -2        1957907488 1957906880 608        Statuspoll
> > > 5          -2        64        0          64        PwrDevMsgUpd
> > > 6          -2        160        0          160        StatusPoll 5s
> > > 7          1084614932 102432    47328      55104      show_command
> > > 8          -2        96        0          96        SecurityRx
> > > 9          -2        64        0          64        SWPoll64bCnt
> > > 10        -2        5504      5472      32        Earl
> > > 11        -2        224        0          224        ProtocolFilter
> > > 12        -2        32        0          32        connecthelper
> > > 13        -2        30752      30720      32        telnetd
> > > 14        -2        2375087520 2375087424 96        ProtocolTimer
> > > 15        -2        64        0          64        RMON AlarmTimer
> > > 16        -2        0          0          0          llcSSTPFlood
> > > 17        -2        3904      3840      64        gsgScpAggregati
> > > 18        -2        96        0          96        sntp_recd
> > > 19        -2        32        0          32        sntp_xmitd
> > > 20        -2        735510368  735506464  3904      cdpd
> > > 21        -2        3278097280 3278097120 160        cdpdtimer
> > > 22        -2        27782752  27782496  256        SptTimer
> > > 23        -2        4610848    4610368    480        SptBpduRx
> > > 24        -2        18656      18496      160        SptBpduTx
> > > 25        -2        224        0          224        VtpTimer
> > > 26        -2        54754912  54745088  9824      DTP_Rx
> > > 27        -2        48335200  48010240  324960    EthChnlRx
> > > 28        -2        27550464  27481056  69408      EthChnlConfig
> > > 29        -2        96        0          96        sptHelper
> > > 30        -2        0          0          0          sptTraps
> > > 31        -2        64        0          64        ciscoRmonTimer
> > > 32        -2        64        0          64        ciscoUsrHistory
> > > 33        -2        96        0          96        rmonMediaIndep
> > > 34        -2        0          0          0          SnmpTraps
> > > 35        -2        32        0          32        Acct Send Bkg
> > > 38        -2        2560      2432      128        l2t_server
> > > 40        -2        32        0          32        SysLogTask
> > > 41        -2        160        0          160        pinggateA
> > > 42        -2        96        0          96        Authenticator_S
> > > 43        -2        32        0          32        dot1x_rx
> > > 44        -2        32        0          32        Backend_Rx
> > > 45        -2        32        0          32        Backend_SM
> > > 143        0          58368      3744      54624      Console
> > > 144        -2        1583513952 1583288864 225088    snmpdm
> > > 145        -2        288        0          288        VtpRx
> > > 146        -2        286588736  286585344  3392      THREAD
> > > 147        1084614932 83040      19776      63264      telnet147
> > > 193        0          0          0          0          Packet forwardi
> > > 194        0          3324272    0          3324272    Switching overh
> > > 195        0          923164    0          923164    Admin overhead
> > >
> > > ****************** show proc cpu ******************
> > >
> > > CPU utilization for five seconds:  85.63%
> > >                      one minute:  77.70%
> > >                    five minutes:  75.19%
> > > PID Runtime(ms) Invoked    uSecs    5Sec    1Min    5Min    TTY
> Process
> > > --- ----------- ---------- -------- ------- ------- ------- ---
> > > ---------------
> > > 1  1174535890  0          0        14.37%  22.30%  24.81% -2  Kernel
> and
> > > Idle
> > > 2  11          127        1000      0.00%  0.00%  0.00% -2  Flash MIB
> > > Updat
> > > 3  110027177  116603290  75000      0.59%  0.92%  0.98% -2  SynConfig
> > > 4  22713113    16282080  5000      0.49%  0.00%  0.00% -2  Statuspoll
> > > 5  3144222    39615783  2000      0.19%  0.00%  0.00%-2  PwrDevMsgUpd
> > > 6  199666      2504869    1000      0.00%  0.00%  0.00% -2  StatusPoll
> > > 5s
> > > 7  1449497    4558      71000    18.71%  11.38%  7.80% 1084614932
> > > show_comm
> > > and
> > > 8  9          2          9000      0.00%  0.00%  0.00% -2  SecurityRx
> > > 9  51924      523415    1000      0.00%  0.00%  0.00%-2  SWPoll64bCnt
> > > 10  868750      12223525  2000      0.19%  0.00%  0.00% -2  Earl
> > > 11  97628      1254856    2000      0.00%  0.00%  0.00%-2
> ProtocolFilter
> > > 12  310        400        2000      0.00%  0.00%  0.00%-2
> connecthelper
> > > 13  94          321        1000      0.00%  0.00%  0.00% -2  telnetd
> > > 14  23002097    108625901  13000      0.68%  0.00%  0.00%-2
> ProtocolTimer
> > > 15  1          1          1000      0.00%  0.00%  0.00% -2  RMON
> > > AlarmTimer
> > > 16  0          1          0          0.00%  0.00%  0.00%-2
> llcSSTPFlood
> > > 17  138672492  2496733069 2000      0.53%  0.00%  0.00%-2
> gsgScpAggregati
> > > 18  23          145        1000      0.00%  0.00%  0.00% -2  sntp_recd
> > > 19  0          1          0          0.00%  0.00%  0.00% -2
> sntp_xmitd
> > > 20  796454      1342840    2000      0.00%  0.00%  0.00% -2  cdpd
> > > 21  97080483    12531477  100000    1.36%  1.00%  1.00% -2  cdpdtimer
> > > 22  19947258    12417928  11000      0.68%  0.00%  0.00% -2  SptTimer
> > > 23  121654340  68317547  32000      1.43%  1.00%  1.00% -2  SptBpduRx
> > > 24  106482592  12588072  34000      1.19%  1.00%  1.00% -2  SptBpduTx
> > > 25  1331327    12261017  2000      0.00%  0.00%  0.00% -2  VtpTimer
> > > 26  25625032    10235686  32000      0.41%  0.00%  0.00% -2  DTP_Rx
> > > 27  161683      274383    26000      0.00%  0.00%  0.00% -2  EthChnlRx
> > > 28  252470      404377    27000      0.00%  0.00%  0.00%-2
> EthChnlConfig
> > > 29  7900873    111357253  2000      0.76%  0.00%  0.00% -2  sptHelper
> > > 30  0          1          0          0.00%  0.00%  0.00% -2  sptTraps
> > > 31  92194      1254861    2000      0.19%  0.00%  0.00%-2
> ciscoRmonTimer
> > > 32  83884      1254859    1000      0.00%  0.00%  0.00%-2
> ciscoUsrHistory
> > > 33  1          1          1000      0.00%  0.00%  0.00%-2
> rmonMediaIndep
> > > 34  2          8          1000      0.00%  0.00%  0.00% -2  SnmpTraps
> > > 35  0          1          0          0.00%  0.00%  0.00% -2  Acct Send
> > > Bkg
> > > 38  53          9          9000      0.00%  0.00%  0.00% -2
> l2t_server
> > > 40  10873      103545    6000      0.00%  0.00%  0.00% -2  SysLogTask
> > > 41  834599      12220730  2000      0.19%  0.00%  0.00% -2  pinggateA
> > > 42  54103676    746014533  2000      0.87%  0.00%  0.00%-2
> Authenticator_S
> > > 43  1          1          1000      0.00%  0.00%  0.00% -2  dot1x_rx
> > > 44  1753130    26497140  2000      0.00%  0.00%  0.00% -2  Backend_Rx
> > > 45  57038095    626675562  2000      0.68%  0.00%  0.00% -2
> Backend_SM
> > > 143 201145347  2496733059 3000      0.41%  0.92%  0.98% 0  Console
> > > 144 246459      1123421    199000    0.00%  0.00%  0.00% -2  snmpdm
> > > 145 27775      166799    3000      0.00%  0.00%  0.00% -2  VtpRx
> > > 146 532312      244762    52000      0.00%  0.00%  0.00% -2  THREAD
> > > 147 225266      112        4000      0.00%  0.00%  0.00% 1084614932
> > > telnet147
> > >
> > > 193 3234873477  2059011136 17684    44.20%  44.13%  43.53% 0  Packet
> > > forwardi
> > > 194 538929086  250881678  9209      5.43%  5.73%  6.21% 0  Switching
> > > overh
> > > 195 785169361  656370151  23018      6.97%  6.82%  6.75% 0  Admin
> > > overhead
> > > _______________________________________________
> > > cisco-nsp mailing list  cisco-nsp at puck.nether.net
> > > https://puck.nether.net/mailman/listinfo/cisco-nsp
> > > archive at http://puck.nether.net/pipermail/cisco-nsp/
> > >
> >
> >
> >
> >--
> >Warm regards,
> >
> >Amol Sapkal
> >
> >-------------------------------------------------------------------
> >"When I'm not in my right mind, my left mind
> >gets pretty crowded"
> >-------------------------------------------------------------------
>
>
>
>
> <http://adworks.rediff.com/cgi-bin/AdWorks/sigclick.cgi/www.rediff.com/signature-home.htm/1507191490@Middle5?PARTNER=3>
>



--
Warm regards,

Amol Sapkal

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"When I'm not in my right mind, my left mind
gets pretty crowded"
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