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Discovering non-imported interface status on a WMI node to filter before import

I've been re-working my nightly List Resources script to improve/cleanup things a bunch. One of our bigger issues is that we have interfaces on nodes that are not up, yet are imported to the node. I have found that I can query NPM.Interfaces to see the status of nodes that have ALREADY been imported, but I want to determine if they're up or down BEFORE I import them. Here's what I've found so far.

- After doing a ScheduleListResources, I can filter the GetListResourcesResult to filter out the interfaces I'm not interested in so that I'm only importing up interfaces.

- the GetListResourcesResult unfortunately does not tell me the Status of the interface.

- I can query SNMP nodes with DiscoverInterfacesOnNode to determine the status of non-imported interfaces, but this does not work for WMI. Only SNMP.

I know that I could import them all, then query NPM.Interfaces to determine which ones are down and remove them, but I have thousands of WMI nodes to deal with - I'd like to not have that much churn if I can help it.

Any suggestions?

Paul

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mesverrum

I didn't like the limitations around those verbs, so I use variations on this example to take my devices, push them through a batch of discovery jobs, when those finish it runs sql to delete the junk i dont want from the discoveredinterfaces/discoveredvolumes/etc, and then I import what's left over.

Of all the methods I have tested over the years this gives me the most granular control and is pretty manageable for my team.

github.com/.../DiscoverFilterImport.ps1

SilentMuse

Many thanks. I'll pour over these and see what I can do with it.