Home Networking


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Home Networking

  1. 1. Home Networking prepared for FCC Technical Advisory Committee 18 September 2002
  2. 2. Broadband Way (Yesterday vs. Tomorrow) <ul><li>1 cable modem/3 mo </li></ul><ul><li>568 user network </li></ul><ul><li>2400 Bps connectivity </li></ul><ul><li>$18,000 per unit </li></ul><ul><li>Data only </li></ul><ul><li>Luxury feature </li></ul><ul><li>1 cable modem/0.1 sec </li></ul><ul><li>100 million users </li></ul><ul><li>100,000,000 bps </li></ul><ul><li>Less than $10 per unit </li></ul><ul><li>Video, data, voice </li></ul><ul><li>Key element of life </li></ul>1988 2010 In North America, installing a cable modem every 8 seconds and a DSL modem every 16 seconds
  3. 3. Home Networking Three Dimensions Applications Industry Efforts Network Technologies
  4. 4. Network Technologies <ul><li>Connections </li></ul><ul><ul><li>Wired vs. wireless </li></ul></ul><ul><ul><ul><li>Power line, phone line, dedicated line, wireless </li></ul></ul></ul><ul><ul><li>Synchronous, asynchronous </li></ul></ul><ul><li>Carry IP and MPEG </li></ul><ul><li>Some do it “better” than others </li></ul><ul><ul><li>Faster throughput, Lower latency </li></ul></ul><ul><ul><li>Native QoS </li></ul></ul><ul><ul><li>More reliable </li></ul></ul><ul><ul><li>Easier to install </li></ul></ul><ul><ul><li>RF / electrical integrity </li></ul></ul><ul><ul><li>Wireless spectrum issues </li></ul></ul><ul><li>Technology </li></ul><ul><li>IEEE 802.3 </li></ul><ul><li>IEEE 802.11 </li></ul><ul><li>HomePlug™ </li></ul><ul><li>HomeRF™ </li></ul><ul><li>HomePNA™ </li></ul><ul><li>Bluetooth™ </li></ul><ul><li>IEEE 1394 </li></ul><ul><li>UWB </li></ul><ul><li>Etc. </li></ul>Applications and the Marketplace will shake this out Applications Industry Efforts Network Technologies
  5. 5. Technology Survey Other considerations: Native QoS ? Security ?
  6. 6. Home Network Technology in the Field (n=778) © Parks Associates 2001
  7. 7. Length of Time Networked (n=778) © Parks Associates 2001 Focus on PCs for now, not Multimedia (yet) Over 60% in just the last 2 years
  8. 8. Applications <ul><li>Video Streaming (500 kbps – 5 Mbps) </li></ul><ul><li>Telemetry (up to 300 kbps) </li></ul><ul><li>Web Surfing/E-mail (up to 200 kbps) </li></ul><ul><li>Streaming (up to 200 kbps) </li></ul><ul><li>Fast-twitch games (up to 128 kbps) </li></ul><ul><li>Voice (up to 128 kbps) </li></ul><ul><li>Meter reading (bps) </li></ul><ul><li>Toggling a light switch (bps) </li></ul>New stuff every day, and higher bandwidth <ul><li>Applications </li></ul><ul><li>web </li></ul><ul><li>email </li></ul><ul><li>calendar </li></ul><ul><li>games </li></ul><ul><li>audio </li></ul><ul><li>video </li></ul><ul><li>voice </li></ul><ul><li>home automation </li></ul><ul><li>home security </li></ul>Applications Industry Efforts Network Technologies
  9. 9. Bandwidth Needs <ul><li>Yesterday </li></ul><ul><ul><li>low bandwidth </li></ul></ul><ul><ul><ul><li>E.g., designed for 56 kbps dialup </li></ul></ul></ul><ul><ul><li>Symmetric: email (no attachments) </li></ul></ul><ul><ul><li>Asymmetric: web browsing </li></ul></ul><ul><li>Today </li></ul><ul><ul><li>High bandwidth, moving toward symmetry </li></ul></ul><ul><ul><li>but mainly store and forward </li></ul></ul><ul><ul><ul><li>digital images </li></ul></ul></ul><ul><ul><ul><li>Peer-to-peer </li></ul></ul></ul><ul><li>Tomorrow </li></ul><ul><ul><li>Real-time streaming (controlled latency and jitter) </li></ul></ul><ul><ul><li>Prioritized </li></ul></ul>
  10. 10. Gross Traffic is Nearly Symmetric <ul><li>Average up/downstream data flow symmetry is 1.4 </li></ul><ul><ul><li>Data flow has been fairly stable since September 2001 </li></ul></ul><ul><li>Average individual user symmetry (independent of volume) is 4:1 </li></ul><ul><li>30% of users have more upstream than downstream use </li></ul><ul><li>Symmetry tends to increase as use increases </li></ul><ul><li>Data flow symmetry is skewed by big users </li></ul>Symmetry 0.00 0.50 1.00 1.50 2.00 2.50 May-01 Jun-01 Jul-01 Aug-01 Sep-01 Symmetry
  11. 11. More on Symmetry and Traffic <ul><li>Traffic breakdown of a major ISP </li></ul><ul><ul><li>Backbone traffic = 26 Gbps </li></ul></ul><ul><ul><li>17 Gbps into homes, 9 Gbps out of homes </li></ul></ul><ul><ul><ul><li>Symmetry = 1 : 1.8 </li></ul></ul></ul><ul><ul><ul><ul><li>34% peer-to-peer </li></ul></ul></ul></ul><ul><ul><ul><ul><li>27% web </li></ul></ul></ul></ul><ul><ul><ul><ul><li>18% net news </li></ul></ul></ul></ul><ul><ul><ul><ul><li>21% other </li></ul></ul></ul></ul><ul><ul><li>50% of sub’s use only 5% of the bandwidth </li></ul></ul><ul><ul><li>Other 50% of sub’s use 95% of the bandwidth </li></ul></ul>Nationwide footprint – August 2002
  12. 12. Industry Efforts <ul><li>Ad Hoc Network </li></ul><ul><ul><li>Consumer runs the home network </li></ul></ul><ul><ul><ul><li>Finds their own services </li></ul></ul></ul><ul><li>Managed Network </li></ul><ul><ul><li>Network </li></ul></ul><ul><ul><li>Services </li></ul></ul><ul><ul><li>Network + Services </li></ul></ul><ul><li>Efforts </li></ul><ul><li>Zeroconf </li></ul><ul><li>UPnP™ </li></ul><ul><li>OSGi™ </li></ul><ul><li>CableHome™ </li></ul><ul><li>ITU SG 9 </li></ul><ul><li>CEA R7.3 (VHN) </li></ul><ul><li>HAVi </li></ul><ul><li>BlueTooth™ </li></ul><ul><li>Jini™ </li></ul>Differing Semantics, Consumer Choice Applications Industry Efforts Network Technologies
  13. 13. Group Details <ul><li>ZeroConf </li></ul><ul><ul><li>no centralized configuration, management, or administration </li></ul></ul><ul><li>UPnP™ </li></ul><ul><ul><li>IP and A/V services, on the home network </li></ul></ul><ul><li>OSGi™ </li></ul><ul><ul><li>offering services over any IP network </li></ul></ul><ul><li>CableHome™ </li></ul><ul><ul><li>IP and A/V, home network and access network services </li></ul></ul><ul><li>BlueTooth™ </li></ul><ul><ul><li>IP home network services using BlueTooth wireless </li></ul></ul><ul><li>VHN </li></ul><ul><ul><li>CEA standards committee R7.4. Adopted UPnP + extensions </li></ul></ul><ul><li>HAVi </li></ul><ul><ul><li>audio/video home network services using IEEE1394 </li></ul></ul><ul><li>Jini™ </li></ul><ul><ul><li>Requires adopting JAVA as the implementation language </li></ul></ul>
  14. 14. Compare/contrast <ul><li>ITU Study Group 9 </li></ul><ul><ul><li>ITU J.191 (Draft) </li></ul></ul><ul><ul><ul><li>Managed networking </li></ul></ul></ul><ul><ul><ul><li>Basic Residential Gateway (centralized data store) </li></ul></ul></ul><ul><ul><ul><ul><li>DHCP, DNS, NAT, Firewall, etc. </li></ul></ul></ul></ul><ul><li>IETF Zero Configuration Working Group </li></ul><ul><ul><li>ad hoc networking </li></ul></ul><ul><ul><li>No centralized servers or data stores </li></ul></ul>
  15. 15. ITU J.191 Network - enabling services Access Network + service provider + Internet 10B-T DHCP, DNS, NAT, Firewall, etc. configured by service provider 1394 Power line Phone line X.10 analog
  16. 16. ZeroConf Network - enabling IP networks 10B-T 1394 Power line Phone line Internet Simple Ethernet switch configured by user
  17. 17. Home Networking Summary <ul><li>Choice abounds </li></ul><ul><li>Industry Efforts </li></ul><ul><li>Zeroconf </li></ul><ul><li>UPnP™ </li></ul><ul><li>OSGi™ </li></ul><ul><li>CableHome™ </li></ul><ul><li>ITU SG 9 </li></ul><ul><li>CEA R7.3 (VHN) </li></ul><ul><li>HAVi </li></ul><ul><li>BlueTooth™ </li></ul><ul><li>Jini™ </li></ul><ul><li>Etc. </li></ul><ul><li>Technology </li></ul><ul><li>IEEE 802.3 </li></ul><ul><li>IEEE 802.11 </li></ul><ul><li>HomePlug™ </li></ul><ul><li>HomeRF™ </li></ul><ul><li>HomePNA™ </li></ul><ul><li>Bluetooth™ </li></ul><ul><li>IEEE 1394 </li></ul><ul><li>UWB </li></ul><ul><li>Etc. </li></ul>But what is easy to do and adds value ? <ul><li>Applications </li></ul><ul><li>web </li></ul><ul><li>email </li></ul><ul><li>calendar </li></ul><ul><li>gaming </li></ul><ul><li>audio </li></ul><ul><li>video </li></ul><ul><li>voice </li></ul><ul><li>home automation </li></ul><ul><li>home security </li></ul><ul><li>Etc. </li></ul>Applications Industry Efforts Network Technologies