BISMark: A Platform for Studying Home...
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Understanding home Internet performance requires a vantage point in the home Our platform: BISMark Measurements from the outside or from end hosts are limited Cannot account for confounding factors Impact of local loop: Cable vs. DSL Impact of ISP policy: traffic shaping Impact of home network: Wi-Fi Usage profiles: Gaming vs. Netflix Why? Instrumented routers in homes Vantage point behind modem View into ISP and home network What can we study? Netgear WNDR3700 680Mhz MIPS CPU 64 MB RAM 8MB Flash Current devices NOX Box 500Mhz Geode CPU 256 MB RAM 2GB Flash Current Measurements Customized to user profile Active Throughput: TCP/UDP Latency: Last mile, under load Jitter: upstream, downstream Packet loss: UDP/ICMP DNS: delay, availability Ability to turn off collection Passive Throughput: per-application Packet headers: anonymized Wireless: accesspoints, clients DHCP: requests, leases ARP: associations Preliminary Results Current Status PowerBoost effects Peak values, duration vary across users Same sustainable throughput Significant effect on: browsing experience speedtests Modem buffers are oversized Minimum observed buffer ~50KB Latencies atleast 750ms, upto 10 seconds for DSL Significant effect on interactive applications 16 deployments across Atlanta 3 major ISPs, multiple service plans Future Work Main Features Active measurements synchronization On-demand remote router control/update ISP Shaping Policies Modem Buffering Upload Download Latency Under Upload BISMark Control Host DB Internet Upstream ISP Upstream ISP Local Loop BISMark firmware Hi-speed Network BISMark Measurement Host Control Protocol Measurement Network Link BISMark Daemon Architecture Overview BISMark firmware L ocal Loo p Deploy up to 35 NOX Boxes Development of OpenWRT images for Netgear platforms Emulab-like testbed for homes Implications on privacy Development of non-intrusive, low-overhead tests Study of the effect of home network Study of user profiles BISMark: A Platform for Studying Home Networks Walter de Donato Antonio Pescapè University of Napoli Federico II {walter.dedonato,pescape}@unina.it Srikanth Sundaresan Nick Feamster Georgia Institute of Technology {srikanth,feamster}@gatech.edu Renata Teixeira CNRS/Sorbonne Universités [email protected]
Transcript of BISMark: A Platform for Studying Home...
Understanding home Internet performance requires a vantage point in the home
Our platform: BISMark
Measurements from the outside or from end hosts are limited
Cannot account for confoundingfactors
Impact of local loop: Cable vs. DSL
Impact of ISP policy: traffic shaping
Impact of home network: Wi-Fi
Usage profiles: Gaming vs. Netflix
Why?
Instrumented routers in homes
Vantage point behind modem
View into ISP and home network
What can we study?
Netgear WNDR3700680Mhz MIPS CPU64 MB RAM8MB Flash
Current devices
NOX Box500Mhz Geode CPU256 MB RAM2GB Flash
Current Measurements
Customized to user profile
Active
Throughput: TCP/UDPLatency: Last mile, under loadJitter: upstream, downstreamPacket loss: UDP/ICMPDNS: delay, availability
Ability to turn off collection
Passive
Throughput: per-applicationPacket headers: anonymizedWireless: accesspoints, clientsDHCP: requests, leasesARP: associations
Preliminary Results
Current StatusPowerBoost effects
Peak values, duration varyacross users
Same sustainable throughput
Significant effect on:
browsing experience
speedtests
Modem buffers are oversized
Minimum observed buffer ~50KBLatencies atleast 750ms, upto 10 seconds for DSL
Significant effect on interactiveapplications
16 deployments across Atlanta
3 major ISPs, multiple service plans
Future Work
Main Features
Active measurements synchronization
On-demand remote router control/update
ISP Shaping Policies
Modem Buffering
Upload
Download
Latency Under Upload
BISMarkControl Host
DB
Internet
Upstream ISPUpstream ISP
Local LoopBISMarkfirmware
Hi-speedNetwork
BISMarkMeasurement Host
Control Protocol
Measurement
Network Link
BISMark Daemon
Architecture Overview
BISMarkfirmware
Loca
l Loo
p
Deploy up to 35 NOX Boxes
Development of OpenWRT images forNetgear platforms
Emulab-like testbed for homes
Implications on privacy
Development of non-intrusive, low-overheadtests
Study of the effect of home network
Study of user profiles
BISMark: A Platform for Studying Home NetworksWalter de DonatoAntonio Pescapè
University of Napoli Federico II
{walter.dedonato,pescape}@unina.it
Srikanth SundaresanNick Feamster
Georgia Institute of Technology
{srikanth,feamster}@gatech.edu
Renata Teixeira
CNRS/Sorbonne Universités
