Home Networking
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Home Networking Home Networking Presentation Transcript

  • Home Networking prepared for FCC Technical Advisory Committee 18 September 2002
  • Broadband Way (Yesterday vs. Tomorrow)
    • 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
    1988 2010 In North America, installing a cable modem every 8 seconds and a DSL modem every 16 seconds
  • Home Networking Three Dimensions Applications Industry Efforts Network Technologies
  • Network Technologies
    • 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 Applications Industry Efforts Network Technologies
  • Technology Survey Other considerations: Native QoS ? Security ?
  • Home Network Technology in the Field (n=778) © Parks Associates 2001
  • 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
  • Applications
    • 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)
    New stuff every day, and higher bandwidth
    • Applications
    • web
    • email
    • calendar
    • games
    • audio
    • video
    • voice
    • home automation
    • home security
    Applications Industry Efforts Network Technologies
  • 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
  • Gross Traffic is Nearly Symmetric
    • 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
    Symmetry 0.00 0.50 1.00 1.50 2.00 2.50 May-01 Jun-01 Jul-01 Aug-01 Sep-01 Symmetry
  • 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
  • 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 Applications Industry Efforts Network Technologies
  • 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
  • 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
  • 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
  • ZeroConf Network - enabling IP networks 10B-T 1394 Power line Phone line Internet Simple Ethernet switch configured by user
  • Home Networking Summary
    • Choice abounds
    • Industry Efforts
    • Zeroconf
    • UPnP™
    • OSGi™
    • CableHome™
    • ITU SG 9
    • CEA R7.3 (VHN)
    • HAVi
    • BlueTooth™
    • Jini™
    • Etc.
    • Technology
    • IEEE 802.3
    • IEEE 802.11
    • HomePlug™
    • HomeRF™
    • HomePNA™
    • Bluetooth™
    • IEEE 1394
    • UWB
    • Etc.
    But what is easy to do and adds value ?
    • Applications
    • web
    • email
    • calendar
    • gaming
    • audio
    • video
    • voice
    • home automation
    • home security
    • Etc.
    Applications Industry Efforts Network Technologies