[j-nsp] JUNOS 6.0R1.3 traffic statistic is not accurate?

[Phil Rosenthal]

I think this bug is fixed in the new release of 6.x
I have gig interfaces that routinely have snmp counters return 0, and 
then back to the real number every few minutes.....

-P
On Oct 17, 2003, at 12:20 AM, bbird at epik.net wrote:

>
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> We are seeing similar behavior with Junos6.0R1.5 on the M160 platform 
> wrt
> POS OC192 links.  In fact, our SNMP poller is reporting several 
> instances
> per day of insane delta values on counters, and discarding the polls.  
> We've
> upgraded 2 out 10 M160 that previously ran Junos 5.3R2.4, and have 
> made no
> changes to the poller configuration.  The remaining 8 M160's still 
> running
> 5.3R2.4 are not exhibiting these errors.  The example below is
> ifHCInUcastPkts, however this also seems to be affecting ifHCInOctet 
> and
> ifHCOutOctets, as well.  Our latest weekly utilization report is 
> showing
> 823.53% utilization now.
>
> Monday, 10/13/2003 16:37:41
>  Received large delta from 'jcvlflnj2m6-LW-so-3/0/0'. Poll is dropped 
> (OID
> in error is ifHCInUcastPkts. Delta is 1.844674406e+19. Old value is
> 2.288484296e+10. (Counter64: 0x5 0x540afdd1) Current value is
> 1.718154249e+10. (Counter64: 0x4 0x198858)).
>
>
> - -Ben
>
> #-----Original Message-----
> #From: Yu-lin Chang [mailto:ylchang at ascc.net]
> #Sent: Thursday, October 16, 2003 10:16 PM
> #To: juniper-nsp at puck.nether.net
> #Subject: [j-nsp] JUNOS 6.0R1.3 traffic statistic is not accurate?
> #
> #
> #Hi,
> #
> #After upgrade to JUNOS 6.0R1.3 on my M160, I got something
> #wrong on the traffic statistics. The traffic statistics
> #are calculated by MRTG through SNMP (use 64bit counter).
> #I did not modify MRTG config after upgrade the JUNOS.
> #
> #I divide an ATM-OC12 into 5 PVCs (without traffic shaping).
> #The traffic statistics on the interface is not equal to
> #the sum of this 5 PVCs. For example, the traffic on ATM-OC12
> #interface is 100mbps, but the sum of 5 PVCs goes to 2 or 3 times
> #higher (200mbps+).
> #
> #The same problem appears on the STM-1 and STM-4 SONET interfaces.
> #I also divide SONET interface into 3 pipes by using different
> #DLCI numbers on Frame-Relay Encapsulation.
> #
> #The traffic statistics on STM-1 or STM-4 interface have the same
> #behavior like the ATM-OC12 interface. The sum of traffics of
> #the DLCIs is much higher then the traffic on interface.
> #
> #Anyone meets the same problem? Does this a bug of JUNOS 6.0R1.3?
> #Thanks in advance.
> #
> #BR,
> #Yu-lin
> #--
> #
> #P.S. my ATM and SONET interfaces hardware info are listd bellow.
> #
> #> show chassis pic fpc-slot 0 pic-slot 0
> #PIC fpc slot 0 pic slot 0 information:
> #  Type                             1x OC-12 ATM, MM
> #  ASIC type                        K chip
> #  State                            Online
> #  PIC version                  1.5
> #  Uptime                         19 days, 6 hours, 46 minutes, 1 
> second
> #
> #> show chassis pic fpc-slot 1 pic-slot 0
> #PIC fpc slot 1 pic slot 0 information:
> #  Type                             4x STM-1 SDH, SMIR
> #  ASIC type                        D chip
> #  State                            Online
> #  PIC version                  2.4
> #  Uptime                         19 days, 6 hours, 46 minutes,
> #5 seconds
> #
> #> show chassis pic fpc-slot 2 pic-slot 0
> #PIC fpc slot 2 pic slot 0 information:
> #  Type                             4x OC-12 SONET, SMIR
> #  ASIC type                        D chip
> #  State                            Online
> #  PIC version                 1.13
> #  Uptime                         19 days, 6 hours, 46 minutes,
> #5 seconds
> #-----
> #
> #_______________________________________________
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> #
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--Phil Rosenthal
ISPrime, Inc.