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XP EU Peering Forum More webcasting?

XP EU Peering Forum More webcasting?. Brandon Butterworth. BBC webcasting growth. 1995 <100 concurrent streams 1997 take off - election, Hong Kong hand over (1st video), Diana funeral (syndicated) 1999 120M 8K streams - Cricket 2002 1.2G 24K - Budget, Queen Mum

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XP EU Peering Forum More webcasting?

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  1. XP EU Peering Forum More webcasting? Brandon Butterworth

  2. BBC webcasting growth • 1995 <100 concurrent streams • 1997 take off - election, Hong Kong hand over (1st video), Diana funeral (syndicated) • 1999 120M 8K streams - Cricket • 2002 1.2G 24K - Budget, Queen Mum • 2003 2.2G 44K - Saddam statue fall • 2004 ? - Olympics

  3. Webcasting the Olympics • BBC has acquired UK broadband rights to a number of events • This is new direction and expected to grow • Conditional on UK only users - access via BBCi Broadband providers http://www.bbc.co.uk/broadband/ • No international access allowed

  4. Webcasting the Olympics • Limiting to UK reduces potential audience • Previously peaked 42K streams (2.4Gbit/s) for toppling Saddam statue • That was narrowband, UK & international • Olympics predicted 50K concurrent UK streams

  5. Legacy Unicast • Regular unicast Real Media and sometimes Windows Media streams continue • Starting to get to the limits of sensible scalability • 50K @ 250kbit/s = 12.5Gbit/s • Private peers added to avoided congesting our IX ports • Anyone who needs a PI contact peering@bbc.co.uk. Some of you need to do this (largest peer estimated will be 2.5Gbit/s) • Some propositions avoided due to scale

  6. Multicast Trial • Previous trials and conference presentations through 2001 showed technical interest • Lack of business need meant no pressure to overcome technical limitations • BBC to start presenting content multicast only, providing that business need • Technical obstacles remain and are understood, the purpose of the trial is to encourage solutions • Equipment has matured, ADSL now widespread • Broadband is the target, POTS survived on unicast

  7. Multicast Trial Plan • Work with a number of pioneer ISPs, all welcome multicast-tech@bbc.co.uk • Olympics will include 6 streams some available only on digital tv • Regular broadband rates • 225Kbit/s with some extreme 500K or 1Mbit/s • Mostly delivery trial so content will be Real 10 • Some content trials too • Other platforms with limited user base will be run in parallel (e.g. H264/AVC, perhaps BBC video codec)

  8. Multicast Trial Plan • Stand alone infrastructure, new ASN • Dedicated IX ports, PIs in Telehouse North if required (desire higher QoS than unicast) • UK only routes as per BBCi Broadband • Non UK use will be policed (unicast too) • Sustaining services - at least 24x7 radio stations, more to come

  9. Beyond the Olympics • R&D led project, not a production service • Lots of details still being worked out • We reserve the right to try things that don’t work out • We encourage people to join in as predictions may be wrong swamping unicast platform • Feedback welcome, we’ll have engineer time allocated to working with ISPs and understanding issues

  10. Beyond the Olympics • BBC Charter - we’ve committed to broadband • Convergence will be collision • IMP - internet PVR • PVR - PC crossover

  11. Questions

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