Video: Benefits of IP Systems for Sporting Venues

As you walk around any exhibitions there seems to be a myriad of ‘benefits’ of IP working, many of which don’t resonate for particular use cases. Only the most extraordinary businesses need all of the benefits, so in this talk, Imagine Communication’s John Mailhot discusses how IP helps sports venues.

John sets the scene by separating out the function of OB trucks and the ‘inside production’ facilities which have a whole host of non-TV production to do including driving scoreboards, displays inside the venue, replays and importantly has to deal with over 250 events a year, not all of which will have an OB truck.

We see that the scale that IP can work at is a great benefit as many signals can fit down one fibre and 2022-7 seamless switching can easily provide full redundancy for every fibre and SFP. This is a level of redundancy which is simply not seen in SDI systems. With stadia being very large, necessitating cable runs of over 500m, the fact that IP needs fewer cables overall is a great benefit.

John shows an example of an Arista switch only 7U in height which provides 144x 100G ports meaning it could support over 4000 inputs and 4000 outputs. Such density is unprecedented and for OB trucks can be a dealbreaker. For sports venues, this can also be a big motivator but also allow more flexibility in distributing the solution rather than relying on a massive central interconnect with a 1100×1100 SDI router in a central CTA.

TV is nothing without audio and the benefits to audio in 2110 are non trivial since with the audio being split off from the video, we are no longer limited to dealing with just 16 channels per video and de-embedding from a video frame any time we want to touch it.

Timing is an interesting benefit. I say this because, whilst PTP can end up being quite complex compared to black and burst, it has some big benefits. First off, it can live in the same cables as your data where as black and burst requires a whole separate cable infrastructure. PTP also allows you to timestamp all essences which helps with lip-sync throughout your workflow.

John leads us through some examples of how this works for different areas finishing by summing up the relevant benefits such as scalability, multi-format, space efficient, and timing amongst others.

Watch now!
Download the slides
Speakers

John Mailhot John Mailhot
CTO, Networking & Infrastructure,
Imagine Communications

Video: The Good and the Ugly – IP Studio Production Case Study

What’s implementing SMPTE ST-2110 like in real life? How would you design your network and what were the problems? In this case study Ammar Latif from Cisco Systems presents the architecture, best practices and lessons learned they gleaned in this live IP broadcast production facility project designed for a major US broadcaster. Based on SMPTE ST-2110 standard, it spanned five studios and two control rooms. The central part of this project was a dual Spine-Leaf IP fabric with bandwidth equivalent of a 10,000 x 10,000 HD SDI router with a fully non-blocking multicast architecture. The routing system was based on Grass Valley Convergent broadcast controller and a Cisco DCNM media controller.

As the project was commissioned in 2018, the AMWA IS-04 and IS-05 specifications providing an inter-operable mechanism for routing media around SMPTE 2110 network were not yet available. Multicast flow subscription was based on a combination of IGMP (Internet Group Management Protocol) and PIM (Protocol Independent Multicast) protocols. While PIM is very efficient and mature, it lacks the ability to use bandwidth as a parameter when setting up a flow path. Ammar explains how Non-Blocking Multicast (NBM) developed by Cisco brings bandwidth awareness to PIM by signalling a type of data (video, audio or metadata).

The talk continues by discussing PTP distribution & monitoring, SMPTE 2022-7 seamless protection switching and remote site production. Ammar also lets us see how the user interfaces on the Cisco DCNM media controller were designed which include a visualisation of multicast flow, network topology and link saturation of ports.

You can find the slides here.

Watch now!

Speaker

Ammar Latif
Principal Architect,
Cisco Systems

Webinar: IP 101 – Redundancy in an IP environment

Date: Tomorrow, Wednesday December 11th, 9am CET and 5pm CET.

Axon’s series of webinars looking stepping through broadcasting in IP from the very beginnings has been working up through the topics and now comes to managing redundancy within an IP architecture.

Led by Peter Schut, CTO of Axon, he looks at SMPTE ST 2022-7 which is the standard method of seamless switching allowing redundancy in the paths and the streams. But, of course, there are many other ways of creating redundant IP systems including managing redundancy at the network level as well as the device level.

This webinar happens at two times. Once in the morning for europe and once in the afternoon.

Register now and choose your session!

Speaker

Peter Schut Peter Schut
CTO,
Axon

Video: IP Test and Measurement for ST 2110 Systems

As the transition to IP-based transport for video, audio, and data continues. The early adopters have already demonstrated the operational and commercial benefits of COTS IP infrastructure and SMPTE ST 2110 video-over-IP standard suite becomes mature now. However, configuration and troubleshooting of IP systems requires a completely new skillset. Broadcast engineers need to gain an understanding of the technology and the new techniques required to monitor these signals.

In this video Kevin Salvidge from Leader shows what test and measurement tools you need to ensure you continue to deliver the same quality of service that can be achieved with SDI systems.

Kevin looks at the main differences between traditional and IP systems which stem as much from a move from synchronous to asynchronous infrastructure as the way you measure how well the system is working.

The following topics are covered:

  • Frame Check Sequence (FCS), Cyclic Redundancy Check (CRC)
  • Packet jitter measurement (avoiding buffer underrun)
  • Monitoring ST 2022-7 path delay between the two feeds
  • PTP synchronization (offset and delay graphs, synchronisation accuracy)
  • Checking that video, audio and ANC signals are synchronised with PTP and RTP timing measurement
  • Packet Header Information looking at MAC, IP, UDP, RTP as well as the payload
  • SFP Information (10/25 Gb, multimode / single mode etc.)
  • IP Event Log e.g. Grand Master change
  • Hybrid IP and SDI Video and Audio Test and Measurement

You can see the slides here.

Watch now!

Speaker

Kevin Salvidge
European Regional Development Manager
Leader