Need to create a dynamic global collection based on polled ports in another global collection

Products

• CA Spectrum
• DX NetOps

Issue/Introduction

I need to create a global collection that contains interfaces that have OK to poll set to Yes and that are model class equal to port based on devices that are part of one particular global collection.  I've tried many combinations but so far it is not working.  To make this clearer, we have a static global collection called UK Managed Network Devices.  This global collection will show device-level alerts but it won't show interface-level alerts.  So, I need to create a dynamic global collection called "UK Managed Network Device Port Models" that contains all interfaces that have ok to poll set to yes for the devices in "UK Managed Network Devices".  How can this search be written?  I've tried many combinations but it doesn't seem to be finding the interfaces for devices in the global collection that have ok to poll set to Yes.  

Environment

Release : 10.4.1

Component : Spectrum Core / SpectroSERVER

Resolution

You need 3 Global Collections:

1.  Create the GC with the devices in it.
2.  Create another GC that searches on CollectionsModelNameString Equal To the name of the GC with the devices in it. Set the Special Criteria to Interfaces of Devices.
3.  Create a third GC that searches for CollectionsModelNameString Equal To the name of the GC in step 2 AND ok_to_poll equal to yes