To determine the path from Router CE1 to Router PE2, use the traceroute command:
user@vpn4> traceroute 192.168.193.2
source 10.255.10.4
traceroute to 192.168.193.2 (192.168.193.2) from 10.255.10.4, 30 hops max, 40 byte packets
1 vpn1-fe-110.isp-core.net (192.168.192.1) 0.690 ms 0.490 ms 0.458 ms
2 vpn2-t3-003.isp-core.net (192.168.193.2) 0.846 ms 0.768 ms 0.749 ms
MPLS Label=100000 CoS=0 TTL=1 S=1
3 vpn5-t3-003.isp-core.net (192.168.193.5) 0.643 ms 0.703 ms 0.600 ms
4 vpn-08-t3-003.isp-core.net (192.168.193.2) 0.810 ms 0.739 ms 0.729 ms