RDMnet
RDMnet extends RDM device management over IP using ANSI E1.33. Broker-based RPT and low-level recovery/discovery have different roles. It is separate from sACN level streaming.
Scope: RDMnet — requirements depend on the selected profile.
protocol · Catalog reviewed 2026-09-27
Infrastructure Requirements
- Compatible E1.33 devices and brokers
- selected discovery/configuration
- LLRP reachability for the relevant local link.
Network & Physical Requirements
| Port / allocation | Transport | Connection / signal flow | Feature and requirement | Evidence |
|---|---|---|---|---|
| Configured | TCP | RDMnet client → RDMnet broker | Profile requirement · Core RDMnet broker connection ETC RDMnetBroker example configuration; use advertised/configured port 8888 is an example configuration, not a universal default. Resolve the broker TCP port from its configuration or DNS-SD advertisement. | Source checked 2026-09-27 Configuration > Listen Port; DNS-SD |
| 5569 | UDP Multicast: 239.255.250.133 (IPv4); ff18::85:0:0:85 (IPv6) | LLRP manager → LLRP target | Optional · LLRP LLRP discovery and RDM commands to targets ETC RDMnet LLRP implementation Recovery/discovery multicast flow; confirm network scope and forwarding. Multicast request/response flows are described at https://etclabs.github.io/RDMnetDocs/head/llrp.html. | Source checked 2026-09-27 LLRP_PORT; LLRP multicast address definitionsGit revision c59acb3 |
| 5569 | UDP Multicast: 239.255.250.134 (IPv4); ff18::85:0:0:86 (IPv6) | LLRP target → LLRP manager | Optional · LLRP LLRP responses to the manager ETC RDMnet LLRP implementation Recovery/discovery multicast flow; confirm network scope and forwarding. Multicast request/response flows are described at https://etclabs.github.io/RDMnetDocs/head/llrp.html. | Source checked 2026-09-27 LLRP_PORT; LLRP multicast address definitionsGit revision c59acb3 |
| 5353 | UDP Multicast: 224.0.0.251; ff02::fb | Local discovery participant → Local discovery peers | Profile requirement · mDNS discovery Local mDNS discovery RDMnet broker DNS-SD over mDNS; ETC How RDMnet Works Queries and responses in both directions; design any cross-subnet discovery gateway explicitly. | Source checked 2026-09-27 Sections 5, 6 and 18: queries, responses and multicast destinations |
Gotchas & IT Notes
- ⚠Confirm broker discovery, scope string and exact implementation ports. Do not reuse sACN 5568 as a generic RDMnet rule.