It may be the case where you notice Latency in a report is much lower than expected compared to when you are manually pinging a device from the command line.
When the poller starts the poll cycle, it pings the ip address 4 times, drops the first ICMP reply, averages the following next three ICMP replies, and stores this information in the database under Latency.
By default the latency measurement calculations are set to Min(Minimum) by default.
You can adjust the way Latency is calculated by adding the following environment variable on the Poller system to change it to average.
Specifies the algorithm used to compute latency values based on multiple pings: minimum, average, or maximum.
The algorithms associated with this environment variable are applicable only to ping measurements, not alternate latency measurements.
Records the minimum response time.
Records the average response time.
Records the maximum response time.
To enforce this change, you must stop eHealth so that when the poller initializes, it will read in this variable adjustment.
How to set eHealth environment variables in a Windows environment
How to set eHealth environment variables in a Unix environment: