RP/0/RP0/CPU0:PE1#ping 7.7.7.7 source 2.2.2.2 count 50 timeout 1
Sun Sep 13 12:38:21.531 UTC
Type escape sequence to abort.
Sending 50, 100-byte ICMP Echos to 7.7.7.7 timeout is 1 seconds:
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (50/50), round-trip min/avg/max = 8/18/85 ms
RP/0/RP0/CPU0:PE1#traceroute 7.7.7.7 source 2.2.2.2
Sun Sep 13 12:38:23.473 UTC

Type escape sequence to abort.
Tracing the route to 7.7.7.7

 1  10.2.3.3 [MPLS: Label 24009 Exp 0] 12 msec  10 msec  16 msec 
 2  10.3.4.4 [MPLS: Label 24009 Exp 0] 11 msec  11 msec  11 msec 
 3  10.4.7.7 12 msec  *  11 msec