State of multicast traceroute and ping

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What is the state of arts about multicast traceroute and ping, especially:

  1. The fate of draft-ietf-idmr-traceroute-ipm? Dead or became RFC?

  2. Is the mtrace still useful in PIM-SM, PIM-SSM, etc? Does most of router support mtrace?

  3. Any multicast ping tool from receiver to source available?

Thanks.