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NANOG Meeting Presentation Abstract

Measuring Access Connectivity Characteristics with Netalyzr
Meeting: NANOG49
Date / Time: 2010-06-16 11:30am - 12:00pm
Room: Grand
Presenters: Speakers:

Nicholas Weaver, ISCI

Nicholas Weaver is a researcher at the International Computer Science Institute in Berkeley. His focus is on network security (including worms, bots, and malcode) and network measurement and debugging.
Christian Kreibich, ICSI.
Vern Paxson, ICSI.
Abstract: Netalyzr (netalyzr.icsi.berkeley.edu) is an edge network debugging and measurement tool. It combines a Java applet and associated Javascript run within the user's browser to perform active measurements to custom servers we operate at ICSI and Amazon EC2. Tests include basic outbound port filtering, NAT detection, native IPv6 capability, hidden HTTP proxies and caches, DNS behavior, fragmentation, latency, bandwidth, and in-network buffering.



This talk will discuss how Netalyzr's tests operate and results based on more than 100,000 executions of the tool by users around the world. Among the interesting findings are common DNS and SIP aware network proxies, significant problems with fragmentation (with implications for DNSSEC deployment), chronic edge-network overbuffering, and deliberate DNS
manipulations.
Files: youtubeMeasuring Access Connectivity Characteristics with Netalyzr
pdfMeasuring Access n49(PDF)
Sponsors: None.

Back to NANOG49 agenda.

NANOG49 Abstracts

  • Opening Remarks
    Speakers:
    Ken FloranceNetflix; .
    David MeyerProgram Committee Chair, Cisco/UO; .
    Donald WelchMerit Network; .
    David TemkinNetflix; .
  • Opening Remarks
    Speakers:
    Ken FloranceNetflix; .
    David MeyerProgram Committee Chair, Cisco/UO; .
    Donald WelchMerit Network; .
    David TemkinNetflix; .
  • Opening Remarks
    Speakers:
    Ken FloranceNetflix; .
    David MeyerProgram Committee Chair, Cisco/UO; .
    Donald WelchMerit Network; .
    David TemkinNetflix; .
  • Opening Remarks
    Speakers:
    Ken FloranceNetflix; .
    David MeyerProgram Committee Chair, Cisco/UO; .
    Donald WelchMerit Network; .
    David TemkinNetflix; .
  • 1slash8
    Speakers:
    George MichaelsonAPNIC; .
    Geoff HoustonAPNIC; .
    Eric WustrowMerit Network; .
    Manish KarirMerit Network; .
    Michael BaileyUniversity of Michigan; .
    Farnam JahanianUniversity of Michigan; .
  • 1slash8
    Speakers:
    George MichaelsonAPNIC; .
    Geoff HoustonAPNIC; .
    Eric WustrowMerit Network; .
    Manish KarirMerit Network; .
    Michael BaileyUniversity of Michigan; .
    Farnam JahanianUniversity of Michigan; .
  • 1slash8
    Speakers:
    George MichaelsonAPNIC; .
    Geoff HoustonAPNIC; .
    Eric WustrowMerit Network; .
    Manish KarirMerit Network; .
    Michael BaileyUniversity of Michigan; .
    Farnam JahanianUniversity of Michigan; .
  • 1slash8
    Speakers:
    George MichaelsonAPNIC; .
    Geoff HoustonAPNIC; .
    Eric WustrowMerit Network; .
    Manish KarirMerit Network; .
    Michael BaileyUniversity of Michigan; .
    Farnam JahanianUniversity of Michigan; .
  • 1slash8
    Speakers:
    George MichaelsonAPNIC; .
    Geoff HoustonAPNIC; .
    Eric WustrowMerit Network; .
    Manish KarirMerit Network; .
    Michael BaileyUniversity of Michigan; .
    Farnam JahanianUniversity of Michigan; .
  • 1slash8
    Speakers:
    George MichaelsonAPNIC; .
    Geoff HoustonAPNIC; .
    Eric WustrowMerit Network; .
    Manish KarirMerit Network; .
    Michael BaileyUniversity of Michigan; .
    Farnam JahanianUniversity of Michigan; .
  • IPv6 Enablement in the Home
    Moderators:
    John Jason Brzozowski, Comcast; Panelists:
    James Woodyatt, Apple, Inc.; Allen Huotari, Cisco; Salah NassarNetgear; .
  • IPv6 Enablement in the Home
    Moderators:
    John Jason Brzozowski, Comcast; Panelists:
    James Woodyatt, Apple, Inc.; Allen Huotari, Cisco; Salah NassarNetgear; .
  • IPv6 Enablement in the Home
    Moderators:
    John Jason Brzozowski, Comcast; Panelists:
    James Woodyatt, Apple, Inc.; Allen Huotari, Cisco; Salah NassarNetgear; .
  • IPv6 Enablement in the Home
    Moderators:
    John Jason Brzozowski, Comcast; Panelists:
    James Woodyatt, Apple, Inc.; Allen Huotari, Cisco; Salah NassarNetgear; .
  • Large Route Leak Detection
    Speakers:
    Qing JuUniversity of Arizona; .
    Beichuan Zhang, University of Arizona; Varun KhareUniversity of Arizona; .
  • Large Route Leak Detection
    Speakers:
    Qing JuUniversity of Arizona; .
    Beichuan Zhang, University of Arizona; Varun KhareUniversity of Arizona; .
  • Large Route Leak Detection
    Speakers:
    Qing JuUniversity of Arizona; .
    Beichuan Zhang, University of Arizona; Varun KhareUniversity of Arizona; .
  • Lightning Talks
    Speakers:
    Carlos VicenteUniversity of Oregon; .
    Robert RaszukCisco Systems; .
    Doug MadoryMadory; .
  • Lightning Talks
    Speakers:
    Carlos VicenteUniversity of Oregon; .
    Robert RaszukCisco Systems; .
    Doug MadoryMadory; .
  • Lightning Talks
    Speakers:
    Carlos VicenteUniversity of Oregon; .
    Robert RaszukCisco Systems; .
    Doug MadoryMadory; .

 

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