Internet-ready devices shipments will surpass 500M units by 2013!
Transcript of Internet-ready devices shipments will surpass 500M units by 2013!
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http://aqualab.cs.northwestern.edu
Mario A. Sánchez John S. Otto Zachary S. Bischof Fabián E. Bustamante Northwestern, EECS
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PAM’13 Sánchez et al. 2 Trying broadband characterization at home!
! Large growth in quantity/diversity of home network devices – Internet-ready devices shipments will surpass 500M units by 2013!
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*iomega NEC
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PAM’13 Sánchez et al. 3 Trying broadband characterization at home!
! Large growth in quantity/diversity of home network devices – Internet-ready devices shipments will surpass 500M units by 2013!
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*iomega NEC
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PAM’13 Sánchez et al. 4 Trying broadband characterization at home!
! Challenges home network usability and resource management
! Complicates broadband characterization at the last meter (e.g., cross traffic) – Dasu, Netalyzer, Glasnost, …
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Despite increasing home network complexity, we can do broadband characterization from end hosts
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PAM’13 Sánchez et al. 5 Trying broadband characterization at home!
! Complexity drives Universal Plug and Play (UPnP) adoption to simplify home-network management
! UPnP-enabled gateway can be used to infer cross-traffic
! The problem brings the solution – for broadband characterization at home
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PAM’13 Sánchez et al. 6 Trying broadband characterization at home!
! Explore the complexity of home networks – Number and diversity of devices detected
! Classify devices based on likelihood of generating cross-traffic on the access-link
! Understand dynamics of home device usage – When devices are on/off and, if on, when do they exchange data
! Sketch an effective approach to broadband characterization*
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*DiCioccio 2011
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PAM’13 Sánchez et al. 7 Trying broadband characterization at home!
! Measure from Dasu, a platform for broadband benchmarking and network experimentation on end hosts – Total over 91k in over 150 countries – Our dataset: ≈13K home networks – BitTorrent
! Passive – Transferred bytes from host (netstat) – BitTorrent – Cumulative bytes transferred over the access-link (UPnP)
! Active – Upload/download throughput using NDT – Discovered devices information (UPnP): ≈4.6K home networks
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PAM’13 Sánchez et al. 8 Trying broadband characterization at home!
! If you don’t respond to UPnP you don’t exist – These devices are not accounted for – But we’ll know your network usage
! Same device can announce several UPnP services
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PAM’13 Sánchez et al. 9 Trying broadband characterization at home!
65% of homes have at least one device
Number of networked devices found
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PAM’13 Sánchez et al. 10 Trying broadband characterization at home!
65% of homes have at least one device 16% of homes have 3 or more
Number of networked devices found
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PAM’13 Sánchez et al. 11 Trying broadband characterization at home!
Internal-facing (58%)
! Gateways ! External-facing: talks to the outside world ! Internal-facing: talks within the home network
External-facing (5%)
Gateway (37%)
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PAM’13 Sánchez et al. 12 Trying broadband characterization at home!
devices complexity externally-facing devices
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PAM’13 Sánchez et al. 13 Trying broadband characterization at home!
As # of devices increases so does the likelihood home gateway supports UPnP
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PAM’13 Sánchez et al. 14 Trying broadband characterization at home!
! “who else is out there”
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PAM’13 Sánchez et al. 15 Trying broadband characterization at home!
! “who else is out there”
For 20% of samples the host is alone
For 50% of samples no other external device is present!
For 85% locations device is alone 10% of time
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PAM’13 Sánchez et al. 16 Trying broadband characterization at home!
! For broadband characterization – No cross-traffic – Local cross-traffic from other applications in the host – Cross-traffic from other devices
! UPnP- enabled gateways help identify different network usage scenarios inside the home network
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PAM’13 Sánchez et al. 17 Trying broadband characterization at home!
Internet
BitTorrent
Other Apps
Host Traffic
Other Devices Traffic
Home Gateway
BitTorrent Netstat UPnP = =
No cross-traffic
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PAM’13 Sánchez et al. 18 Trying broadband characterization at home!
Internet
BitTorrent
Other Apps
Host Traffic
Other Devices Traffic
Home Gateway
BitTorrent Netstat UPnP =<
Local cross-traffic from other applications in the host
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PAM’13 Sánchez et al. 19 Trying broadband characterization at home!
Internet
BitTorrent
Other Apps
Host Traffic
Other Devices Traffic
Home Gateway
BitTorrent Netstat UPnP ≤ <
Cross-traffic from other devices
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PAM’13 Sánchez et al. 20 Trying broadband characterization at home!
! Client is sole responsible for network traffic in access link
BitTorrent < netstat = UPnP
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PAM’13 Sánchez et al. 21 Trying broadband characterization at home!
! Client is sole responsible for network traffic in access link
BitTorrent ≤ netstat = UPnP
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PAM’13 Sánchez et al. 22 Trying broadband characterization at home!
! Client is sole responsible for network traffic in access link
BitTorrent ≤ netstat = UPnP
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PAM’13 Sánchez et al. 23 Trying broadband characterization at home!
! Cross-traffic from other devices
BitTorrent <= netstat < UPnP
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PAM’13 Sánchez et al. 24 Trying broadband characterization at home!
! Cross-traffic from other devices
BitTorrent <= netstat < UPnP
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PAM’13 Sánchez et al. 25 Trying broadband characterization at home!
Despite complex home networks we can do broadband characterization from home
! Today’s home network are a complex environments
! While # of devices in the network is high, only a few regularly connect to the Internet
! As # of devices increase, so does the likelihood home gateway supports UPnP
– For home network management, sure – But also for broadband characterization