Why am I using the System Statistics vendor certification for reachability and not the ICMP vendor certification? This causes no availability average to be available for reporting.
Release: IMDAGG99000-3.5-Infrastructure Management-Data Aggregator
This occurs when the "use ICMP" is not checked in the discovery profile for the device. If you rediscover the device with "use ICMP" checked in the discovery profile it will then use the ICMP vendor certification for reachability and you can report on reachability average.