[c-nsp] high cpu on VIP in 7507

Troy Beisigl troy at i2bnetworks.com
Tue Jul 6 14:50:33 EDT 2010


Yep. We saw this with another VIP2/50 in the chassis as well that had  
a 100BaseTX card in it and upgraded it to a VIP4/80 and that problem  
went away, but this one still has issues.

-Troy



On Jul 6, 2010, at 11:40 AM, Michael K. Smith - Adhost wrote:

> Ahh, okay.  Are you running DCEF globally and CEF switching on the
> interface?
>
> Mike
>
> --
> Michael K. Smith - CISSP, GSEC, GISP
> Chief Technical Officer - Adhost Internet LLC mksmith at adhost.com
> w: +1 (206) 404-9500 f: +1 (206) 404-9050
> PGP: B49A DDF5 8611 27F3  08B9 84BB E61E 38C0 (Key ID: 0x9A96777D)
>
>
>> -----Original Message-----
>> From: Troy Beisigl [mailto:troy at i2bnetworks.com]
>> Sent: Tuesday, July 06, 2010 11:39 AM
>> To: Michael K. Smith - Adhost
>> Cc: cisco-nsp at puck.nether.net
>> Subject: Re: [c-nsp] high cpu on VIP in 7507
>>
>> Actually, we had a bad PA that I replaced, but did not clear the
>> counters. The errors are not incrementing. I just now cleared the
>> counters on this interface to make sure. We installed the VIP4/80 to
>> replace the VIP2/50 that was in there with the same issue except that
>> it was at 99% CPU 40-60% of the time.
>>
>> -Troy
>>
>>
>>
>> On Jul 6, 2010, at 11:30 AM, Michael K. Smith - Adhost wrote:
>>
>>> It looks like you have a physical-layer problem, given the number of
>>> framing errors in the output you provided.
>>>
>>> Mike
>>>
>>> --
>>> Michael K. Smith - CISSP, GSEC, GISP
>>> Chief Technical Officer - Adhost Internet LLC mksmith at adhost.com
>>> w: +1 (206) 404-9500 f: +1 (206) 404-9050
>>> PGP: B49A DDF5 8611 27F3  08B9 84BB E61E 38C0 (Key ID: 0x9A96777D)
>>>
>>>
>>>> -----Original Message-----
>>>> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
>>>> bounces at puck.nether.net] On Behalf Of Troy Beisigl
>>>> Sent: Tuesday, July 06, 2010 10:59 AM
>>>> To: cisco-nsp at puck.nether.net
>>>> Subject: [c-nsp] high cpu on VIP in 7507
>>>>
>>>> Hi.
>>>>
>>>> We are seeing a problem with high cpu usage on a VIP4/80 card when
>>>> traffic hits above 10Mbps. Has anyone seen this type of behavior?
>>>> Details are below.
>>>>
>>>>
>>>> The IOS version is rsp-pv-mz.124-23.
>>>>
>>>> GigabitEthernet6/0/0 is up, line protocol is up
>>>>  Hardware is cyBus GigabitEthernet Interface, address is
>>>> 0003.32fd.f0c0 (bia 0003.32fd.f0c0)
>>>>  Description: feed to cat1.5/6
>>>>  Internet address is X.X.X.X/28
>>>>  MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
>>>>     reliability 255/255, txload 5/255, rxload 6/255
>>>>  Encapsulation ARPA, loopback not set
>>>>  Keepalive set (10 sec)
>>>>  Full-duplex, 1000Mb/s, link type is autonegotiation, media type
> is
>>> SX
>>>>  output flow-control is XON, input flow-control is XON
>>>>  ARP type: ARPA, ARP Timeout 04:00:00
>>>>  Last input 00:00:00, output 00:00:00, output hang never
>>>>  Last clearing of "show interface" counters 7w6d
>>>>  Input queue: 0/75/38707/81008 (size/max/drops/flushes); Total
>>>> output drops: 10276
>>>>  Queueing strategy: fifo
>>>>  Output queue: 0/40 (size/max)
>>>>  30 second input rate 24360000 bits/sec, 4195 packets/sec
>>>>  30 second output rate 21260000 bits/sec, 4126 packets/sec
>>>>     9833124494 packets input, 4733684298220 bytes, 0 no buffer
>>>>     Received 11921351 broadcasts, 0 runts, 0 giants, 1350
> throttles
>>>>     2683847777 input errors, 0 CRC, 2683489514 frame, 4395
> overrun,
>>>> 370684 ignored
>>>>     0 watchdog, 11568950 multicast, 0 pause input
>>>>     0 input packets with dribble condition detected
>>>>     10530489310 packets output, 7707156852297 bytes, 0 underruns
>>>>     0 output errors, 0 collisions, 4 interface resets
>>>>     6002 unknown protocol drops
>>>>     0 babbles, 0 late collision, 0 deferred
>>>>     8 lost carrier, 0 no carrier, 0 pause output
>>>>     0 output buffer failures, 0 output buffers swapped out
>>>>
>>>> VIP-Slot6   10:43:52 AM Tuesday Jul 6 2010 PDT
>>>>
>>>>
>>>>    111111111111111111111111111111111111111111111111111111111111
>>>>    222233333222221111100000333331111100000222223333322222222221
>>>> 100
>>>> 90
>>>> 80
>>>> 70
>>>> 60
>>>> 50
>>>> 40
>>>> 30
>>>> 20
>>>> 10
>>>>
>> **********************************************************
>>>> **
>>>>   0....5....1....1....2....2....3....3....4....4....5....5....6
>>>>             0    5    0    5    0    5    0    5    0    5    0
>>>>               CPU% per second (last 60 seconds)
>>>>
>>>>
>>>>    151111351111111511852381153122211111212111161211118331181111
>>>>    415869924534233096537174664310543638877434467042630685635444
>>>> 100
>>>> 90                   *   *
>>>> 80                   *   *                           *    *
>>>> 70                   *   *                    *      *    *
>>>> 60                   *   *  *                 *      *    *
>>>> 50  *     *       *  **  *  *                 *      *    *
>>>> 40  *    **       *  **  *  *                 *      ***  *
>>>> 30  *    **       *  *****  **   *     * *    *      ***  #
>>>> 20  #****## *     ***##**# *#* ***  * ****    #**  * #****#*
>>>> 10
>>>>
>> ##########################################################
>>>> ##
>>>>   0....5....1....1....2....2....3....3....4....4....5....5....6
>>>>             0    5    0    5    0    5    0    5    0    5    0
>>>>               CPU% per minute (last 60 minutes)
>>>>              * = maximum CPU%   # = average CPU%
>>>>
>>>>
>>>>    996111  11 2111177379959211 1      1  1     211591 11    1
>>>> 259 28254
>>>>
>>>>
>> 9900609912980001946199499209488679907788898952209380097990899998299
>>>> 34946
>>>> 100 **                  ** *
>>>> *                *
>>>> 90 **                  ** *                        *
>>> *
>>>> 80 **              *   ** *                        *
>>>> *  *
>>>> 70 **              ** *** *                        *
>>>> *  *
>>>> 60 ***             ** *** *                        *
>>>> *  *
>>>> 50 ***             ** *****                       **
>>>> **  * **
>>>> 40 ***             ********                       **
>>>> **  * **
>>>> 30 ***        *    *********                   *  **
>>>> ***  ****
>>>> 20 *** *      *    *********             *     *  **
>>>> *** *****
>>>> 10
>>>>
>> #############################*********#**#*#######*******#
>>>> *******#****#*
>>>>
>>>> 0
>>>>
>>> ....
>>> 5....1....1....2....2....3....3....4....4....5....5....6....6....7..
>>>>             0    5    0    5    0    5    0    5    0    5    0
>>>> 5    0
>>>>                   CPU% per hour (last 72 hours)
>>>>                  * = maximum CPU%   # = average CPU%
>>>>
>>>>
>>>>
>>>> Thanks,
>>>>
>>>> -Troy
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
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>



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