metrics to determine how often devices miss a heartbeat

[piccione99]

CX hub wants to shorten the amount of time it takes to determine if a device is offline. Currently the pings are 45 seconds apart and a device has to miss 2 to be determined as offline. Product wants it to be closer to 30 seconds. The question is what if the device misses one ping, can it be determined to be offline? We need metrics to determine how often a device misses a heartbeat but makes the next one as it's still online.