I have a piece of MPEG video equipment that I am trying to monitor. The logical layout of the system is very similar to that of the built-in SNMP bandwidth monitoring tools; there are multiple virtual interfaces, each with multiple OIDs that I would like to monitor (errored seconds, lost packets, rate).

I have literally hundreds of these virtual interfaces to monitor, and I need to set up a system whereupon network operations personnel can easily add and remove them from the PRTG system.

So far, the only solution I see is to add multiple SNMP custom sensors and then build a Sensor factory on top to aggregate the data into multiple channels of a single sensor. This solution does not seem manageable when dealing with 200 devices and 800 or more virtual interfaces. I also know that I can create a batch file to do the queries, but this seems to be creating an awful lot of work for something that PRTG already does for bandwidth on router interfaces.

What I really want to do is to clone the router interface bandwidth sensor, and change the OIDs and names that are polled in the various channels. Is this possible?

Article Comments

Hello,

I'm sorry but it's not possible to change the OIDs used by the SNMP Traffic Sensors. For this situation it really seems as the only option are SNMP Custom Sensors and the Sensor Factory. Or do you have MIBs from the vendor of the MPEG Equipment? You could also consider creating a device template once you've setup one of these devices and then use it with the Auto-Discovery to help adding sensors for other devices.

best regards.


May, 2011 - Permalink

Hi,

I do have the MIBs for the MPEG equipment, however from what I can tell, even using the SNMP Library custom sensor I can still only attach one OID to each sensor. Is this still accurate? I would be happy enough creating these through the SNMP Library method if I could aggregate multiple OIDs under one sensor without having to go through the extra step of creating a Sensor factory for each virtual interface.

Will the device template intelligently create a Sensor Factory for each group of virtual interface OIDs, or will this still have to be done manually? Is there an easy way to hide the component sensors of a sensor factory?

thanks for your assistance


May, 2011 - Permalink

Yes, the SNMP Library Sensors also only allow one 1 OID per Sensor. However, this will of course save you from creating SNMP Custom Sensors yourself with entering each OID yourself. I'm afraid the Sensor Factory Sensors will not be written into the templates (as they can't automatically "update" their definitions).


May, 2011 - Permalink