How do I traceroute a mulitcast network path? Every page I find is a conglomeration of checking igmp-snooping and pim at multiple points on the switch and router assuming you have a multicast source operating.
How do I traceroute a mulitcast network path?
There is an "mtrace" standards proposal which is implemented by some vendors. This mtrace provides similar functionality to a traditional traceroute, but it's built around an active query/response mechanism - which means that all multicast routers in the path must support mtrace in order for it to function.
I know that Cisco in particular supports this, simply with the
mtrace command (Basic Multicast Troubleshooting Tools). I don't actively work with multicast these days so I can't comment on whether you'll find this available on other vendors' gear.