Measurement Reference Guide Measurements vSTP EIR Exception measurements VstpEirBlackImsiFail 3.34.2 VstpEirBlackImsiFail Measurement ID 21609 Measurement Group EIR Exception Measurement Measurement Type Simple Measurement Dimension Single Description The number of IMEIs blacklisted where the IMSI match has failed. Collection Interval 5 min Recovery No action necessary.