Hi Dave,
If there exist both IGP path and LSP to a destination which requires MH-BFD, which is the preferred one to use? I believe some implementations impose labels for plain ip traffic egressing on the node having LSP to destination. In that case, MH-BFD control packets might go over LSP tunnels to destination. Is there any advantage/disadvantage from MH-BFD perspective to prefer one over other? Tulasi.