# Protocol matrix

## LAN
### RTP multicast + SDP
Good first step for known sources.

### SAP
Useful for lightweight multicast session discovery.

### NMOS IS-04 / IS-05
Adds discovery, registry and connection management.
Recommended when integrating into professional IP media environments.

## WAN
### SRT
Current Phase-4 target.
This package now expects a narrow framed-PCM profile over SRT instead of a generic FFmpeg sidecar path.

### RIST
Not implemented here.
Reasonable future Phase-5 candidate for broadcast-heavy WAN environments.

## Later / optional
### ST 2110-30
Not implemented here.
Reasonable future path once AES67 + NMOS + WAN ingest are stable.