MPLS troubleshooting with LDP ping/traceroute

A year ago I've described the MPLS ping and traceroute functionality. Recently I used these tools to troubleshoot an MPLS TE network and got interesting results that varied based on the IOS release I've deployed in the network

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Ivan Pepelnjak, CCIE#1354, is the chief technology advisor for NIL Data Communications. He has been designing and implementing large-scale data communications networks as well as teaching and writing books about advanced technologies since 1990. See his full profile, contact him or follow @ioshints on Twitter.