What is the most important thing to monitor in ST 2110?

PTP timing, because every device depends on it and timing faults can show up as apparently unrelated media problems.

What does ST 2022-7 do?

It provides seamless protection by sending the same stream over two separate network paths. A receiver can rebuild the stream from either one, so a single path failure does not interrupt it.

Do I still need a multiviewer?

A multiviewer shows operators the content. Network and flow monitoring explains why content has failed or is about to. Most facilities use both, and benefit when they share one view.

SMPTE ST 2110 monitoring: what to watch during an IP migration

For broadcast engineers and technical managers moving facilities to IP.

In an ST 2110 facility, monitor PTP timing first, then the health of each essence flow, both legs of the redundant network, and NMOS registration and connections. During migration, keep SDI and IP in the same view so a signal path can be followed across both.

Why ST 2110 changes monitoring

ST 2110 carries video, audio and ancillary data as separate streams over an IP network. A picture on a screen no longer proves that the path behind it is healthy: audio can drift from video, one network leg can fail silently, and a fault can sit in a switch rather than a broadcast device.

Your team now needs to see the media and the network together.

PTP timing

Every ST 2110 device locks to a common clock using PTP, under SMPTE ST 2059. Timing faults often appear as media problems somewhere else, so watch timing directly.

Which grandmaster is active, and whether a failover has occurred.
Whether each device is locked, and its offset from the grandmaster.
How timing is distributed through the network.
Trends over time, so a slow drift is seen before it causes a fault.

Stream health

Packet loss and sequence gaps on each flow.
Sender timing against the narrow or wide profile in ST 2110-21.
Bit rate compared with what the flow should carry.
Format, and whether audio and ancillary data are present.

Red and blue networks

ST 2022-7 protection sends each flow over two paths, so a receiver survives the loss of one. The danger is that nobody notices the first failure, and the next one takes the service off air. Report on each leg separately, and alarm when a flow loses its protection.

Network fabric

Link utilization and headroom across spine and leaf switches.
Multicast group membership and IGMP behavior.
Interface errors, and which flows they affect.

Discovery and connections

NMOS IS-04 handles registration and discovery, and IS-05 handles connection management. Monitor the registry and alert when a device drops out, since a device that is missing from the registry cannot be routed.

Monitoring through a hybrid period

Most migrations run SDI and IP side by side, often for years. A monitoring system should follow a signal across both, so operators do not have to change tools at the gateway.

Common questions

What is the most important thing to monitor in ST 2110?: PTP timing, because every device depends on it and timing faults can show up as apparently unrelated media problems.
What does ST 2022-7 do?: It provides seamless protection by sending the same stream over two separate network paths. A receiver can rebuild the stream from either one, so a single path failure does not interrupt it.
Do I still need a multiviewer?: A multiviewer shows operators the content. Network and flow monitoring explains why content has failed or is about to. Most facilities use both, and benefit when they share one view.