IP Multicast replacement

Our app is suited to IP multicast but this has proven once again not to be satisfactory. Which is sad because it seems to be what we need. Sending message flows One to Many and Many to Many. At very high scale on a global network. We are left with the app needing to make many one to many SSM flows. Plus inter domain flows require the management of tunnels which is horrible.

Libp2p seems to solve this connectivity need.

Please can anyone comment on this, especially if they have experience using it at scale globally. We’re looking at multi 10gb line rates between many peers.

Thank you.