RP/0/RP0/CPU0:PE1#ping 7.7.7.7 source 2.2.2.2 count 20
Fri Sep 11 14:41:40.393 UTC
Type escape sequence to abort.
Sending 20, 100-byte ICMP Echos to 7.7.7.7 timeout is 2 seconds:
!!!!!!!!!!!!!!!!!!!!
Success rate is 100 percent (20/20), round-trip min/avg/max = 9/10/18 ms
RP/0/RP0/CPU0:PE1#traceroute 7.7.7.7 source 2.2.2.2
Fri Sep 11 14:41:41.493 UTC

Type escape sequence to abort.
Tracing the route to 7.7.7.7

 1  10.2.3.3 [MPLS: Label 24009 Exp 0] 11 msec  9 msec  9 msec 
 2  10.3.5.5 [MPLS: Label 24009 Exp 0] 9 msec  11 msec  9 msec 
 3  10.5.7.7 10 msec  *  11 msec