Pac- Networks IP-Production Workflow, Internet Infrastructure Continue To Grow

Since launching in 2012, Pac-12 Networks has continued to cultivate its IP-enabled home-production model that it helped to pioneer. For nearly a half a decade now, Pac-12 Networks has used its multi-campus Internet2 network to send camera and audio feeds from remote productions to its Network Operations Center (NOC) in San Francisco, where centralized control rooms are used to integrate the telecast. This practice has grown since Pac-12 Network's birth, with more than half of Pac-12 Networks' 850 live-game productions last year deploying the at-home production model.

Now Pac-12 Networks has taken its efforts to the next level by enhancing its existing Internet2 network, which already boasted connectivity between the NOC and more than 150 venues across Pac-12 campuses. After months of planning and development, last December, Pac-12 Networks erected a 10-Gbps IP transport network dedicated solely to Pac-12 traffic. As a result of this IP network, Pac-12 Networks now has its own IP video-contribution network and plans to reduce its reliance on traditional fiber/satellite video-transmission services to almost zero.

Pac-12 Networks' San Francisco-based studio serves as the home for live coverage under the network's IP-Production model.

[Since we launched], we've not only increased our total events from 500 to 850, the workflows have become far more sophisticated as well, says Michael Harbin, VP, technology, engineering, and media management, Pac-12 Networks. We went from, in year one, using a lot of satellite trucks for our games to, today, not using video [circuits] at all and relying entirely on data pipes. We are even looking at dropping our [CDN] lines at our basketball arenas and just using video [circuits] as a backup for our football games. So the transition is pretty much complete.

Upping the Internet2 Ante: Pac-12's New IP Network

Since Pac-12 Network is owned by its 12 member institutions, the broadcaster has been able to leverage the Internet2 Network, a not-for-profit IP network platform used for research and education, for several years. Last year, Pac-12 began exploring expansion of its Internet2 infrastructure, and, in December, launched a dedicated a 10-Gbps IP transport network with three optical rings to provide redundancy and connect its three regions: Northwest (Northern California/Oregon/Washington), Central (Southern California), and South (Arizona/Colorado/Utah).

Our goal with Internet2 was to architect a network that would provide us more stability and more capacity, and that's exactly what we got, says Howie Chung, network engineering manager, Pac-12 Networks. We've seen significant improvement in stability of transmission, and we were able to increase the bitrate on all of our video paths back to San Francisco higher than we've ever done - all with extremely clear pictures.

An Internet2 Coming-Out Party at Pac-12 Hoops Tourneys

With this new Internet2 network established across member campuses, Pac-12 Networks looked to take it one step further by bringing off-site venues online for its Women's Basketball Tournament (at KeyArena in Seattle) and Men's Basketball Tournament (at T-Mobile Arena in Las Vegas) this month.

We've brought off-site venues online before but only with private point-to-point video circuits, says Chung. We engaged different entities in Seattle and Las Vegas to provide us with dark fiber back to our Internet2 POP [point of presence] where we landed on our optical ring.

As a result, Pac-12 Networks was able to use a 10-GBps data pipe (with traditional satellite or CDN) to bring eight individual paths from the Women's Tournament in Seattle to San Francisco. Then, at the Men's Tournament in Las Vegas, Pac-12 Networks deployed two 10-GBps circuits for diversity.

A [traditional] multimedia circuit, which probably offers a 1.5-gig [path] of uncompressed HD video and1-gig of data, would be roughly twice as expensive as running our two 10-gig data-only paths out of the T-Mobile Arena, says Harbin. So this offers us a significant reduction in price, depending on the venue, with a massive increase in bandwidth.

In addition, Pac-12 Networks was able to assist ESPN, which owns rights to three of the 10 Men's Basketball Tournament games, onsite in Las Vegas by transmitting ESPN's network return feed on the Internet2 network.

We had more than enough bandwidth and paths to even help out our broadcast partner, which is pretty amazing, says Harbin. This network is truly robust, reliable, and stable, with low latency and high bandwidth.

ICE ICE Baby: Taking Content Exchange to the Next Level

Although the tournament games were not true at-home productions (Pac-12 Networks deployed NEP's MIRA M14 mobile unit and a full crew), the Men's and Women's Tournaments did provide a unique opportunity to connect the remote production with the NOC in San Francisco. Pac-12 Networks implemented a brand-new EVS Instant Content Exchange (ICE) system, allowing the broadcaster to exchange content between Seattle/Vegas and the NOC without any file-acceleration technology needed.

The [Internet2] network is the foundational aspect of it, and, once that was built, we're finding new ways to use it, says Harbin. On top of this big network, our team devised an Instant Content Exchange system to exchange highlights in real time between the studio and the venue and the venue back to the studio. So we were able to [produce] breakdowns, highlights packages, teases, and bumps, as well as post content to the web and social media with multiple angles included - all in real time.

For the Men's Tournament, MIRA M-14 was equipped with seven networked EVS XT3 replay servers, an XFile3 live file-archive/transfer system, a networked switch, and Pac-12 Networks' shared server to s

LINK:	http://www.sportsvideo.org/2017/03/30/pac-12-networks-ip-production-wo...
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