By default, for Juniper M/T devices, the MPLS Topology Server includes the following command options in the LSP ping command lines that it constructs and invokes for LSP ping server tool invocations:
ping mpls ldp <destination-address> [count 5]
Here is an example of an LSP ping command line and the ping test results. The remote computer shell prompt “juniper@dev-MPLSp8>” indicates that the MPLS Topology Server has established a Telnet, SSH1, or SSH2 session with the originating device.
juniper@dev-MPLSp8> ping mpls ldp 192.168.17.1 count 5 !!!!! --- lsping statistics --- 5 packets transmitted, 5 packets received, 0% packet loss