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How to combine multiple SNMP tables

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On a device, there is a table for information like Description, IP address, Interface. Each row has an index.

In a separate table the same indices exist and they contain other information like dropped packets, and a third table has information like errored seconds.

How can I combine these tables so that I have one sensor for each index, and multiple channels for each sensor that pull information from each of these other tables?

here is an example:

https://imgur.com/a/PumZ9y5

The information for the errors are in the bottom three tables, but are only identified by indices. The information to describe the indices in a human-readable way is in the top table.

sensor snmp snmp-table

Created on Mar 26, 2020 3:15:00 PM by  moffitj (27) 1



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Dear moffitj,

the SNMP Custom Table sensor can only process one table.

There is no option to automatically combine tables. But you can use the factory sensor to manually create a combination taken from different source sensors.

Created on Mar 26, 2020 5:17:40 PM by  Arne Seifert [Paessler Support]



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Is there any way to do this via a custom sensor or script?

This device has about 600 indices and the will occasionally change, so the sensor factory isn't really an option.

Created on Mar 26, 2020 6:36:56 PM by  moffitj (27) 1



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Dear moffitj,

that would be possible with a script which does the SNMP querying itself, for example using the free NetSNMP library. The sensor then has to return the data in a PRTG compatible data structure.

Created on Mar 27, 2020 4:36:42 PM by  Arne Seifert [Paessler Support]

Last change on Mar 27, 2020 4:39:40 PM by  Arne Seifert [Paessler Support]



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Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.