Ping Monitoring

Ping service allows:

It operates by sending Internet Control Message Protocol (ICMP) echo requests to the monitored host and collecting statistics of ICMP responses.

Operation

Refer to Ping Settings subsection for a list of configuration parameters used.

Ping services performs ping request and adds its results to a cache. The size of the cache is defined by service configuration. The oldest results are removed from the cache when it's size is exceeded.

Ping service is denoted Offline if several consecutive requests fail. The number of the requests considered is defined by Number of failed Echo Requests activating offline status configuration parameter. In other words, if any of the most recent requests was successful the services is deemed Online.

The cached results are used to calculate ping statistics: average round-trip time, packet loss rate and last round-trip time. See also Ping Monitoring Results subsection.