RP/0/RP0/CPU0:PE2#ping 2.2.2.2 source 7.7.7.7 count 20
Fri Sep 11 14:34:54.721 UTC
Type escape sequence to abort.
Sending 20, 100-byte ICMP Echos to 2.2.2.2 timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (20/20), round-trip min/avg/max = 10/10/15 ms
RP/0/RP0/CPU0:PE2#traceroute 2.2.2.2 source 7.7.7.7
Fri Sep 11 14:34:55.786 UTC

Type escape sequence to abort.
Tracing the route to 2.2.2.2

 1  10.5.7.5 [MPLS: Label 24008 Exp 0] 10 msec  9 msec  11 msec 
 2  10.3.5.3 [MPLS: Label 24008 Exp 0] 10 msec  9 msec  8 msec 
 3  10.2.3.2 33 msec  *  12 msec