PING is one of the most used tools in networking, there are two main uses for the “ping” tool:
1. Troubleshooting: Ping is used to confirm whether or not you are able to reach a particular layer 3 device. It also give you the round trip time between to end points to confirm the reliability of a circuits path.
2. Monitoring: Ping is used to monitor links/interfaces to make sure a circuit is up.