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Why the SNMP sensor interval is diffrent then specified.

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I have a custom snmp sensor for bandwidth monitoring of a radio link. This is a delta sensor setup as SNMP Custom sensor. It has 60s interval. Unfortunately in the Live data readouts are not in the 60s intervals but in some random 29-35s range. Why? I think that causes results to oscilate as it is a synchronus link at 160 Mbps.

2010-12-03 14:34:14	4 785,13 Mbps	151,91 Mbps/s	100 %
2010-12-03 14:33:43	4 783,38 Mbps	167,66 Mbps/s	100 %
2010-12-03 14:33:14	5 105,48 Mbps	151,90 Mbps/s	100 %
2010-12-03 14:32:41	5 097,50 Mbps	166,80 Mbps/s	100 %
2010-12-03 14:32:10	4 785,00 Mbps	151,90 Mbps/s	100 %
2010-12-03 14:31:39	4 942,82 Mbps	167,55 Mbps/s	100 %
2010-12-03 14:31:09	4 944,46 Mbps	151,86 Mbps/s	100 %
2010-12-03 14:30:37	4 941,23 Mbps	167,22 Mbps/s	100 %
2010-12-03 14:30:07	4 947,64 Mbps	151,91 Mbps/s	100 %

delta interval snmp

Created on Dec 3, 2010 1:40:46 PM by  Maciej Eckstein (60) 2 1

Last change on Dec 3, 2010 5:16:41 PM by  Torsten Lindner [Paessler Support]



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Hello,

which exact version of PRTG are you running? With PRTG 8, the Probe Scheduler tries to "shift" scannings of all sensors of one device a little bit around, in order to achieve less load on the target itself. So that the sensors don't scan all at the same time. 29-35s is quite a difference, please check if the sensor is really set to 60s, with a 30s interval these differences might happen.

Best Regards.

Created on Dec 3, 2010 5:19:03 PM by  Torsten Lindner [Paessler Support]



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I'm positive it is set to 60. The same ip has 4 more snmp sensors. More of them are broken in a same way 3 at 10 seconds interval (the update 5 to 6 seconds each) 1 at 60 s (updates at 25-30s)

I'm using latest relaese 8.1.2.1809 is that a bug?

Created on Dec 3, 2010 9:51:20 PM by  Maciej Eckstein (60) 2 1



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