MPLS traceroute and MPLS propagation TTL

All serial links among the m1,m2 and m3 routers have the same bandwidth, I need mpls trace to test if the mpls is operational as configured. Suppose I want to use loopback reachability to test, I am using m1 loopback and traceroute to m3 loopback. Notice there is no label. This is because the out … Continue reading MPLS traceroute and MPLS propagation TTL