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Gavin Young.ppt

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Gavin Young.ppt

  1. 1. WHAT LIES AHEAD? ISSUES FACING THE ISP INDUSTRY Gavin Young Chief Architect, C&W Access DATE 24 th October 2007
  2. 2. 3 KEY ISSUES FOR ISPs TO THINK ABOUT <ul><li>1. Next Generation Access </li></ul><ul><li>2. European Union Code of Conduct </li></ul><ul><li>on broadband power consumption </li></ul><ul><li>3. Ability of your network to support IPTV </li></ul>
  3. 3. BROADBAND ACCESS TODAY MAINLY DSL, FIBRE JUST TO BUSINESS SITES User Curb Cabinet/Node Exchange. Metro Core ADSL2plus ????? EFM/SHDSLbis FE/GE MSAN &/or Business Mux Ethernet/ IP/MPLS
  4. 4. NEXT GENERATION ACCESS : GPON & VDSL2 FIBRE DEEPER INTO THE NETWORK FOR CONSUMERS VDSL2 GPON User Curb Cabinet/Node Exchange. Metro Core VDSL2 ????? FTTN FTTB MSAN &/or Business Mux Ethernet/ IP/MPLS
  5. 5. IMPLICATIONS OF GPON FOR ISPs <ul><li>Deployment starts in 2008 </li></ul><ul><li>There will be NO copper to these homes (so no DSL) </li></ul><ul><li>Could be ~ 2M GPON homes over the next 10 years </li></ul><ul><li>Your service ‘availability checker’ will be full of black holes unless you can master delivering service over GPON! </li></ul><ul><li>A whole range of new logistics and technical challenges for ISPs : </li></ul><ul><li>Different CPE </li></ul><ul><li>Analogue Terminal Adapter for Voice, new router </li></ul><ul><li>Different Voice Delivery </li></ul><ul><li>No existing voice to the home as per DSL </li></ul><ul><li>Need a softswitch (or partner who has one) </li></ul><ul><li>No line powering, needs battery back-up </li></ul><ul><li>Different Processes & Systems </li></ul><ul><li>For provisioning, fault resolution etc. </li></ul>
  6. 6. THE ECONOMIC IMPORTANCE OF MULTICAST <ul><li>Source : The IP Development Network WWW.IP-Dev.net </li></ul><ul><li>White Paper “HD-TV over IP, who pays the bill?” </li></ul>
  7. 7. OFCOM CONSULTATION ON NEXT GENERATION ACCESS <ul><li>Consultation published : 26 th September 2007 </li></ul><ul><li>Responses Due : 5 th December 2007 </li></ul><ul><li>MAKE YOUR VIEWS KNOWN </li></ul><ul><li>Influence the products, functionality and regulation for Next Generation Access </li></ul>
  8. 8. 3 KEY ISSUES FOR ISPs TO THINK ABOUT <ul><li>1. Next Generation Access </li></ul><ul><li>2. European Union Code of Conduct </li></ul><ul><li>on broadband power consumption </li></ul><ul><li>3. Ability of your network to support IPTV </li></ul>
  9. 9. EU CODE OF CONDUCT ON POWER USAGE IN ACCESS NETWORKS SETS TARGETS FOR FUTURE POWER CONSUMPTION <ul><li>“ Code of Conduct on Energy Consumption of Broadband Equipment” </li></ul><ul><li>Version 2, 17 th July 2007 </li></ul><ul><li>ADSL2plus can reduce transmit power when traffic is light </li></ul><ul><li>Uses L2 & L3 power modes, these may be needed to meet the EU CoC targets </li></ul><ul><li>BUT, can reduce the stability of all DSL systems : </li></ul><ul><li>More errors </li></ul><ul><li>More loss of synch & retrains </li></ul><ul><li>-> Lousy for video & Dynamic Line Management at risk </li></ul><ul><li>NICC DSL Task Group is looking at how ADSL2plus low power modes could be used safely </li></ul>
  10. 10. 3 KEY ISSUES FOR ISPs TO THINK ABOUT <ul><li>1. Next Generation Access </li></ul><ul><li>2. European Union Code of Conduct </li></ul><ul><li>on broadband power consumption </li></ul><ul><li>3. Ability of your network to support IPTV </li></ul>
  11. 11. IPTV OVER BROADBAND WILL SHOW UP ANY ACCESS & HOME NETWORK QoS INADEQUACIES <ul><li>Internet Access </li></ul><ul><li>Best effort networks will work </li></ul><ul><li>Voice </li></ul><ul><li>Really needs QoS </li></ul><ul><li>but can “get away with” throwing capacity at it </li></ul><ul><li>Video </li></ul><ul><li>QoS is essential for responsive streaming video </li></ul>
  12. 12. HDTV IS EVEN MORE DEMANDING <ul><li>TYPICAL IPTV BIT-ERROR RATE (BER) REQUIREMENTS </li></ul><ul><ul><li>10 -9 to 10 -8 for SDTV </li></ul></ul><ul><ul><li>10 -10 to 10 -9 for HDTV (i.e. needs to be as good as fibre transmission systems!) </li></ul></ul><ul><li>Standard DSL performance target is BER = 10 -7 (at 0dB noise margin) </li></ul><ul><ul><ul><li>DSL BER of 10 -8 can be achieved with reasonable noise margin </li></ul></ul></ul><ul><ul><ul><li>BER lower than 10 -8 is very hard to achieve </li></ul></ul></ul><ul><ul><ul><li>Many DSL routers have an intrinsic noise floor between 10 -8 and 10 -9 </li></ul></ul></ul><ul><li>CONCLUSION </li></ul><ul><li>Video Application Layer Forward Error Correction (AL-FEC) may be needed </li></ul><ul><li>See DSL Forum TR-126 and DVB work in this area </li></ul><ul><li>Technically feasible using new Raptor Codes (e.g. from Digital Fountain) </li></ul>
  13. 13. SUMMARY <ul><li>AS AN ISP, MAKE SURE THAT YOU (OR YOUR BROADBAND NETWORK SUPPLIER) UNDERSTAND & ARE INVOLVED IN THESE ISSUES : </li></ul><ul><li>1. Next Generation Access </li></ul><ul><li>Specification & use of GPON products within the UK </li></ul><ul><li>Respond to Ofcom NGA consultation </li></ul><ul><li>2. European Union Code of Conduct </li></ul><ul><li>on broadband power consumption </li></ul><ul><li>NICC discussions on use of ADSL2plus low-power modes </li></ul><ul><li>3. Ability of your network to support IPTV </li></ul><ul><li>What it takes to deliver IPTV, especially HDTV </li></ul>

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