End-to-end Reachability Monitor

Analyzer can monitor the reachability (through a set of ICMP ECHO, aka PING, packets) of remote host, saving data into a database and making additional statistics. The user can later retrieve historical data to see how the reachability of some host changed over time.

Additionally the user can set some alarm (e.g. "send an e-mail") in case of some event (e.g. "host down").