Case Study of Building a National Broadcast Network Using IP

Case Study of Building a National Broadcast Network using IP John Ellerton – Head of Media Futures, Media and Broadcast, BT Ross Kemp – Head of Connectivity Architecture, BBC BT is the major provider of telecommunications networks and services in the UK. It is now an established global communications company serving customers in more than 170 countries. Its global media & broadcast division has underpinned the global television industry for more than 60 years, today helping 600 customers distribute and broadcast content around the globe. John Ellerton is Head of Media Futures. An alumni of Salford University in the UK and École Centrale de Lyon in France, he has since gained over 20 years’ experience creating specialist network and workflow solutions for broadcasters and media companies worldwide. The BBC is the world's leading public service broadcaster. Its mission is to enrich people's lives with programmes that inform, educate and entertain. Ross Kemp is an experienced broadcast engineer and programme lead with a professional background in engineering. He is specialist in delivering strategic wide area connectivity ranging from international contribution and distribution to large corporate wide area networks for broadcast, telephony and enterprise IT. Ross also has much experience delivering broadcast infrastructure overseas, ranging from international bureaux and transmitting stations. With a price premium on bandwidth, Ross has a developed a keen interest making best use of available capacity. BBC Aurora - Towers

The BBC BBC Design & Engineering BBC Service Operations Management (SOM)

Technology Service Desk

& & &

Integration

Production

Connectivity

Systems Delivery Systems

Hosting Platforms Hosting

End User User End Compute

Broadcast Services Broadcast

Application Application Services Distribution Distribution Services Circuit numbers

Lines Core Network • 2,293 Direct Exchange Lines • 2,917 Video & Audio circuits • 2,350 ISDN 2 • 782 Data circuits • 137 ISDN 30 Other • 851 ADSL • 114 dark fibres, international • 3 SIP Trunks (although one is circuits, etc. very large!) This requires a pan-UK network with circa 4.7Tb/s of capacity Key Requirements

• Remove complex and obsolete technology BIC N • Move the interchange points from Telco premises to BBC sites • Unified management of video BIC & audio interfaces S • Prepare for end-to-end IP working

Broadcast codecs Telco Equipment and Interfaces Core network: Circuits and content

• Video (HD and SD): SDI and ASI • Audio: Analogue and AES • Talkback: Analogue • Legacy: E1, STM-1 • Data: 10G, 1G, 100M and 10M Ethernet Introducing “Hermes”: The new BBC network

BBC T1-3 BIC sites n x 10G North

BBC T4-5 sites BT UK Media BT UK Media BBC T4-5 Network Network sites

n x 1G n x 1G

n x 10G BIC South BBC T1-3 sites

BIC = Broadcast Infrastructure Centre Design Philosophy

• Truly end-to-end IP network, without compromises • Absolutely everything is IP encapsulated, including SDH, E1, speech, etc • Video services are switched in the IP domain • ‘Software Defined Network’ using Nevion Video IPath • Multi-terabit capacity Ethernet switches in cores • Core based on 100G and 40G wavelengths • Uncompressed video, audio wherever possible • 88 wavelengths per fibre, ROADM switched • Uses the UKMN to reach radio station sites • Proven high-stability MPLS network designed for broadcast Test Rig Hardware

Adva FSP150 – Network Interface Devices

Cisco Nexus 9508 – Core Switches

Nevion VS902 and VS906 – Video, Audio, E1 services Cisco Nexus 3172 – Edge Switches Ciena 6500 – Optical core Software

• Nevion Video IPath sets up and manages all media and data services on the core network • The BBC uses BNCS to send video switch commands to BT’s Video IPath system • Skyline DataMiner is used for alarm monitoring across all services • BMC Remedy is used for Incident Management Media Service Design Example: Tier 1 to tier 3

Key Path 1 Main BT Network BBC BIC N bearer Path 1 Protect Path 2 Main BT Network Path 2 Protect node BT Core North Ethernet North Route Route BBC BBC BT BT Edge Switch BT Edge BT Audio,Vi BT WDM BT WDM BT WDM BT WDM Audio,Vi Media E’net E’net Media deo, E1, NTE NTE NTE NTE deo, E1, Enc / Dec Switch Switch Enc / Dec etc etc

Input 1 Output 1 BBC BT WDM BBC Network Tier 1 40G/100G λ Tier 3 Site 10GE Ports Site

Input 2 South South Output 2 Route A Route BBC BBC BT BT Edge BT Edge BT Audio,Vi BT WDM BT WDM BT WDM BT WDM Audio,Vi Media E’net E’net Media deo, E1, NTE NTE NTE NTE deo, E1, Enc / Dec Switch Switch Enc / Dec etc BT Core etc Ethernet South BT WDM Switch Route B NTE

BBC BIC S Media Service Design Example: Tier 3 to tier 4

Key Path 1 Main BT Network BBC BIC N bearer Path 1 Protect Path 2 Main BT Network Path 2 Protect node BT NID BT Core North Ethernet Route North Route BBC BT BT Edge Switch BT BBC BT WDM BT WDM Audio,Vi Media E’net BT NTE BT NTE BT NID Media Audio,Vi NTE NTE deo Enc / Dec Switch Enc / Dec deo

Input 1 BT UK Output 1 BBC Media BT NGWDM Network BBC Tier 3 40G/100G λ MPLS-TE Tier 4 Site 10GE Ports Layer 2 Site EVCs Input 2 South Output 2 Route South Route BBC BT BT Edge BT BBC BT WDM BT WDM Audio,Vi Media E’net BT NTE BT NTE BT NID Media Audio,Vi NTE NTE deo Enc / Dec Switch BT Core Enc / Dec deo Ethernet Switch BT NID

BBC BIC S Migration: Site Builds May June July August

BICs Tier 1-3 Priority Tier 1-3 Tier 4-5 Belfast Broadcasting House Bristol Broadcasting House Aberdeen Leicester Radio Leicester BIC North Birmingham Mailbox Brookmans Park Aberystwyth Lerwick Cardiff Broadcasting House Cambridge Broadcasting House Bangor Lincoln Radio Lincolnshire BIC South CCM North Caversham Radio Berkshire Barrow Radio Furness Liverpool Radio Merseyside CCM South Edinburgh Blackburn Radio Lancashire Londonderry Radio Foyle Glasgow Pacific Quay Elstree Brighton Southern Counties Radio Middlesbrough BBC Radio Tees London Broadcasting House Hull Radio Humberside Carlisle Radio Cumbria Milton Keynes Willen Studio Manchester MediaCity Salford Leeds Quarry Hill Carmarthen Northampton Radio Northampton London 4 Millbank Chelmsford Radio Essex Peterborough Studio London Broadcast Centre Derby Radio Derby Portree London Redbus Sovereign House Dorchester Local Radio Portsmouth London Western House Dumbarton Radio Coventry & Warwickshire Newcastle Dumfries Studio R Solway Selkirk Radio Tweed Norwich Forum Dundee Sheffield Radio Sheffield Nottingham London Road Dunstable Shrewsbury Radio Shropshire Oxford Road Oxford Edinburgh Holyrood Stirling Playout A Enniskillen Belmore St Stoke Radio Stoke Plymouth Glasgow City Halls Stornaway Southampton Gloucester Radio Gloucestershire Swansea Studio Telehouse Docklands Grimsby Studio Swindon Radio Wiltshire Tunbridge Wells Guernsey R Guernsey St Sampson Taunton Somerset Sound Watford Data Centre Guildford Local Radio Surrey Truro Radio Cornwall Playout B Hereford Wolverhampton Studio Inverness Worcester Ipswich Radio Suffolk R Hereford & Worcester Jersey Radio Jersey Wrexham Studio Kirkwall York Radio York Collaboration and testing Ready for the future

• More ad-hoc switching • UHD content • IP handoffs • SMPTE ST-2110 • AMWA NMOS For more information

[email protected] [email protected] www.mediaandbroadcast.bt.com