IP in media and broadcast
Traditional SDI broadcast vs IP workflows, What is IP? IP broadcast architectures: Contribution, production, distribution, delivery. Spine leaf fabrics.
Hands on: Base IP connectivity, VLC test streams.
SMPTE 2110 standards and ecosystem
Who are SMPTE, SMPTE standards, SMPTE 2022, 2110. Where 2022 and 2110 are used.
The ST 2110 parts:
- ST 2110-10 to ST 2110-60.
- RP 2110-10 to 40.
- AMWA NMOS: IS-04 to IS-10.
ST-2110 protocol stack overview
IP, UDP, RTP. IPv6. Bandwidth requirements.
Hands on: Video packet analysis with Wireshark.
IP challenges in media networks
IP is not deterministic. Quality vs. bandwidth. Bandwidth, bit rates: HD, 4k, 8K, delay, latency, jitter, signalling. Routers. QoS, IP DSCP field, 802.1Q. Redundancy. ST 2022-7 hitless switching.
Hands on: Analysing performance issues.
UDP versus TCP
Reliable, unreliable, connections, connectionless. Broadcasts, multicasts and unicasts.
Hands on: UDP ports and packet inspection.
RTP
RTP, ports, mixers, translators, RTCP, SMPTE, ST 2022-5 FEC vs 2022-7.
Hands on: RTP flow capture and analysis in Wireshark.
ST 2110-10: Timing
Synchronisation in one stream versus many streams. NTP accuracy, PTP, how PTP works, PTP clock types: OC, BC, TC. PTP timestamps. Synchronising RTP timestamps. SDP. ST 2110-60 synchronisation parameters. PTP profiles for broadcast. ST 2059-1 and 2.
Hands on: linuxptp. Wireshark PTP analysis. GM failover.
ST-2110 and the protocol stack
2110 and need for packet loss prevention. Essences vs 2022-6/MPEG2-TS. TR-04/2022-8 transition. ST2110-23. SDP. ST 2110-21 traffic shaping and delivery timing for video. Timing classes, Receive Buffer Model, packet timing.
Hands on: Analysing essences, SDP, NS/WS pacing.
ST-2110-20 Video
Uncompressed active video. ST 2110-20. SDI over IP. RFC 4175. Bandwidth requirements. Video payload identification: ST 2110-50. Compressed video. Inter versus intra frame compression. ST 2110-22, Codec agnostic, low latency focus. JPEG XS. VC-2. Comparison of uncompressed, JPEG-XS and MPEG4. RTP payload mapping.
Hands on: Wireshark analysis.
ST 2110-30 / -31 Audio
Uncompressed PCM, bandwidth, AES3. AES67. SMPTE 2110-30 and 31. When and where each is used. Interoperation with Dante and others.
Hands on: Format comparison 30 vs 31, AV sync. Fault injection.
ST-2110-40 Ancillary data
Ancillary data as an essence: ST 2110-40, Closed captions, timecodes, other meta data. Fast meta data ST 2110-41.
Hands on: Wireshark dissectors, analysing 2110-40.
Multicasting
Multicasting compared to unicasting and broadcasting, when to use and when not to use multicasting. Multicast addressing.
Hands on: Multicast troubleshooting tools.
Multicast architecture
The big picture, IGMPv1/v2/v3, PIM-SM, SSM. MLD. SAP/SDP.
Hands on: IGMP snooping, Building & analysing a routed multicast network.
AMWA NMOS foundation
What is NMOS? Role in 2110: Control and orchestration. REST APIs, IS-04 to IS-10. IS-04 discovery and registration: Nodes, resources, registry, UUIDs. IS-05 connection management: activate sender/receiver links.
Hands on: nmos-cpp and postman.
NMOS in action
IS-08 Audio channel mapping, IS-09 system parameters, IS-10 Network control.
Hands on: Using postman to issue IS-05 request to activate a flow. Register a stream and use IS-08 to map some channels to a receiver. IS-04 discovery.
Security
Segmentation, VLANs, VRFs, ACLS, Firewalls, NMOS security and BCP-003 series.
Hands on: BCP-003: NMOS calls over TLS.
Putting it all together
TR-1001 as an operational checklist.
