"Mtrace Version 2: Traceroute Facility for IP Multicast" - Hitoshi Asaeda, Weesan Lee

2012-10-22, rev -09: This document describes the IP multicast traceroute facility, named Mtrace version 2 (Mtrace2). Unlike unicast traceroute, Mtrace2 requires special implementations on the part of routers. This specification describes the required functionality in multicast routers, as well as how an Mtrace2 client invokes a query and receives a reply.