Diameter Signaling Router Measurements Measurements vSTP Measurements vSTP MNP Exception measurements VstpUdrDbSubsNotFound VstpUdrDbSubsNotFound Measurement ID 21675 Measurement Group vSTP MNP Exception Measurement Type Simple Measurement Dimension Single Description Number of subscriber record not in UDR DB. Collection Interval 5 min Peg Condition None Measurement Scope Server Group Recovery No action necessary.