Bridging Multicast to the Cloud
summary
A legacy Windows app relies on multicast for state sync and cloud providers block multicast, so the team implements an overlay using n2n mesh VPN to carry multicast across AWS and on‑prem via a gateway. They build HA gateways using coreosync + pacemaker, use smcroute on Linux for static multicast routing, force static edge IP mappings and shorter registration timeouts, and accept unicast fan‑out at the supernode; the solution runs in production for months.
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chapters (8)
- 0:00Start
- 1:48What Multicast Actually Does under the Hood
- 3:55The End-to-End Architecture
- 4:31Encryption and Compression
- 4:54High Availability
- 7:37Multicast Routing on Linux
- 8:33Static Routes
- 12:45Use Cases for Multicast
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