RP/0/RP0/CPU0:CE3#traceroute 192.168.8.1 source 192.168.7.1
Thu Sep 10 12:49:11.015 UTC

Type escape sequence to abort.
Tracing the route to 192.168.8.1

 1  10.2.7.2 6 msec  5 msec  5 msec 
 2  10.4.5.5 [MPLS: Label 24005 Exp 0] 52 msec  21 msec  13 msec 
 3  10.5.8.8 16 msec  *  16 msec 
RP/0/RP0/CPU0:CE3#ping 192.168.8.1 source 192.168.7.1 size 1378 df-bit count 5
Thu Sep 10 12:49:14.972 UTC
Type escape sequence to abort.
Sending 5, 1378-byte ICMP Echos to 192.168.8.1 timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 14/14/17 ms
RP/0/RP0/CPU0:CE3#ping 192.168.8.1 source 192.168.7.1 size 1379 df-bit count 5
Thu Sep 10 12:49:15.891 UTC
Type escape sequence to abort.
Sending 5, 1379-byte ICMP Echos to 192.168.8.1 timeout is 2 seconds:
.....
Success rate is 0 percent (0/5)