Measurements Measurements vSTP measurements vSTP M3UA Usage measurements VstpRxASPDown VstpRxASPDown Measurement ID 21011 Measurement Group vSTP M3UA Usages Measurement Type Simple Measurement Dimension Single Description The number of ASP-DOWN messages received by the vSTP server. Collection Interval 30 min Peg Condition Each time an ASP-DOWN message is received. Measurement Scope NE, Server Recovery No action required.