some of IPmonitoring software like Smoke Ping and Orion:IPmonitor use ICMP check like ZABBIX but Only In ZABBIX if we wanna get both of packet loss and RTT(round trip time) together we should add 2 items which could increase ICMP request/reply on server and client.
using FPING with "-e" could get both of RTT & Packet-Loss % in same line.