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Home Networking

Home Networking

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Home Networking

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  1. Home Networking prepared for FCC Technical Advisory Committee 18 September 2002

  2. 1 cable modem/3 mo 568 user network 2400 Bps connectivity $18,000 per unit Data only Luxury feature 1 cable modem/0.1 sec 100 million users 100,000,000 bps Less than $10 per unit Video, data, voice Key element of life Broadband Way(Yesterday vs. Tomorrow) 1988 2010 In North America, installing a cable modem every 8 seconds and a DSL modem every 16 seconds

  3. Home NetworkingThree Dimensions Network Technologies Applications Industry Efforts

  4. Network Technologies Network Technologies Applications Industry Efforts • Connections • Wired vs. wireless • Power line, phone line, dedicated line, wireless • Synchronous, asynchronous • Carry IP and MPEG • Some do it “better” than others • Faster throughput, Lower latency • Native QoS • More reliable • Easier to install • RF / electrical integrity • Wireless spectrum issues • Technology • IEEE 802.3 • IEEE 802.11 • HomePlug™ • HomeRF™ • HomePNA™ • Bluetooth™ • IEEE 1394 • UWB • Etc. Applications and the Marketplace will shake this out

  5. Technology Survey Other considerations: Native QoS ? Security ?

  6. Home NetworkTechnology in the Field (n=778) © Parks Associates 2001

  7. Length of Time Networked (n=778) © Parks Associates 2001 Over 60% in just the last 2 years Focus on PCs for now, not Multimedia (yet)

  8. Video Streaming (500 kbps – 5 Mbps) Telemetry (up to 300 kbps) Web Surfing/E-mail (up to 200 kbps) Streaming (up to 200 kbps) Fast-twitch games (up to 128 kbps) Voice (up to 128 kbps) Meter reading (bps) Toggling a light switch (bps) Applications Network Technologies Applications Industry Efforts • Applications • web • email • calendar • games • audio • video • voice • home automation • home security New stuff every day, and higher bandwidth

  9. Bandwidth Needs • Yesterday • low bandwidth • E.g., designed for 56 kbps dialup • Symmetric: email (no attachments) • Asymmetric: web browsing • Today • High bandwidth, moving toward symmetry • but mainly store and forward • digital images • Peer-to-peer • Tomorrow • Real-time streaming (controlled latency and jitter) • Prioritized

  10. Gross Traffic is Nearly Symmetric Symmetry 2.50 2.00 1.50 Symmetry 1.00 0.50 0.00 May-01 Jun-01 Jul-01 Aug-01 Sep-01 • Average up/downstream data flow symmetry is 1.4 • Data flow has been fairly stable since September 2001 • Average individual user symmetry (independent of volume) is 4:1 • 30% of users have more upstream than downstream use • Symmetry tends to increase as use increases • Data flow symmetry is skewed by big users

  11. More on Symmetry and Traffic • Traffic breakdown of a major ISP • Backbone traffic = 26 Gbps • 17 Gbps into homes, 9 Gbps out of homes • Symmetry = 1 : 1.8 • 34% peer-to-peer • 27% web • 18% net news • 21% other • 50% of sub’s use only 5% of the bandwidth • Other 50% of sub’s use 95% of the bandwidth Nationwide footprint – August 2002

  12. Industry Efforts Network Technologies Applications Industry Efforts • Ad Hoc Network • Consumer runs the home network • Finds their own services • Managed Network • Network • Services • Network + Services • Efforts • Zeroconf • UPnP™ • OSGi™ • CableHome™ • ITU SG 9 • CEA R7.3 (VHN) • HAVi • BlueTooth™ • Jini™ Differing Semantics, Consumer Choice

  13. Group Details • ZeroConf • no centralized configuration, management, or administration • UPnP™ • IP and A/V services, on the home network • OSGi™ • offering services over any IP network • CableHome™ • IP and A/V, home network and access network services • BlueTooth™ • IP home network services using BlueTooth wireless • VHN • CEA standards committee R7.4. Adopted UPnP + extensions • HAVi • audio/video home network services using IEEE1394 • Jini™ • Requires adopting JAVA as the implementation language

  14. Compare/contrast • ITU Study Group 9 • ITU J.191 (Draft) • Managed networking • Basic Residential Gateway (centralized data store) • DHCP, DNS, NAT, Firewall, etc. • IETF Zero Configuration Working Group • ad hoc networking • No centralized servers or data stores

  15. ITU J.191 Network - enabling services analog X.10 DHCP, DNS, NAT, Firewall, etc. configured by service provider Phone line Access Network + service provider +Internet 10B-T 1394 Power line

  16. ZeroConf Network - enabling IP networks Phone line 10B-T Internet 1394 Power line Simple Ethernet switch configured by user

  17. Home Networking Summary Network Technologies Applications Industry Efforts • Choice abounds • Technology • IEEE 802.3 • IEEE 802.11 • HomePlug™ • HomeRF™ • HomePNA™ • Bluetooth™ • IEEE 1394 • UWB • Etc. • Applications • web • email • calendar • gaming • audio • video • voice • home automation • home security • Etc. • Industry Efforts • Zeroconf • UPnP™ • OSGi™ • CableHome™ • ITU SG 9 • CEA R7.3 (VHN) • HAVi • BlueTooth™ • Jini™ • Etc. But what is easy to do and adds value ?