CAIDA-WIDE Workshop: Minutes

This page contains the minutes of CAIDA/WIDE Workshop on March 21, 2003.


  • Brad Huffaker (CAIDA):
    - skitter project: forward ip toplogy mapping and performance
    - some root name servers allow monitoring of incoming queries
    - SAINT paper on distance metrics
    - PAM paper on DNS root servers placement

  • Nevil Brownlee (CAIDA):
    - passive measurements with NeTraMet
    - round trip times (RTT) to root and gtld servers, 3 years of data
    - performance plots on the web
    - montoring (Chris Yarnell, ISC)

  • Andre Broido (CAIDA):
    - rfc1918 spectroscopy
    - RTT properties

  • Duane Wessels (CAIDA/Measurement Factory)
    - simulating BIND behavior in controlled laboratory environment

  • Jun Murai (Keio University):
    - measurement groups
    - development of DNS (with COMNET and ISC): v6, client-side, security
    - WIDE Internet: transpacific 10GB link to Seattle, 2 other links to US, and APAN (commodity)
    - agenda:
    1. SRI - use DNS structrure to store geographical infromation
      new namespace, RFId spaces, (.geo )
      - lack of study on DNS performance impact
    2. how to think about analysis of Internet traffic in general (new challenge of testbed)
    3. mobility testbed. 2000 automobiles using mobile IPv6 - need new measurement methodologies for that
    4. large multicast testbed using satellite (UDLR schemes) over Asia
    5. concern about using skitter in future DNS root measurements
      * roots doing anycast
      * lack of response to ICMP/UDP

  • Yoichi Shinoda (Japan Advanced Institite of Science and Technology):
    - interests: simulation and validation
    - BED research facility design overview:
    • destinations - 500 hosts w 800Mhz Pentium PC
    • companies use for research and to verify products (e.g., interoperability)
    • project to implement IP traceback
    • study of multicast performance information
    • can be used for more general measurement tasks
    • phd student appointed for this type of work

  • Suguru Yamaguchi (Nara Institite of Science and Technology):
    - AI3 satellite Internet testbed network for Asia in WIDE
    - partnerships with universities in Asia (Thailand) to conduct joint research
    - how to extend UDLR infrastructure to the rest of Asia?

  • Hiroshi Esaki (University of Tokyo):
    - R&D activities and testbed operation
    - steering committee member (with Jun Murai) of Japan Gigabit Networ (JGB)
    - ipv6 PC testbed with commercial ISPs
    - international testbeds
    - auto ID - RF tag

  • Hideki Sunahara (Nara Institite of Science and Technology):
    - Internet CAR: connect people inside/outside vehicles to the Internet (in Japanese)

  • Osamu Nakamura (Keio University):
    - current status of NSPIXP (management work)
    - fast connection to PAIX (Los Angeles) and to San Jose
    - most of infrastructure is dual stack
    - due to protocol/performance restrictions, domestic testbeds are v4 routed via Cisco and v6 routed via FreeBSD Cisco (no support for OSPF-6)
    - 12.2.15.TANGO
    - multicast capability and performance on v6 (v4 multicast is almost wire speed, but v6 is not)
    - 30Mbps 300 pps multicast is needed for 'school on the Internet'

  • Akira Kato (University of Tokyo):
    - operational M-root operations: 2-3 Mbps load daily
    - M-peer (backup) in Osaka - working with NSPIXP 2 to make distributed server, no formal name yet
    - tests of v6 connectivity: NSPIXP6 (layer 2 IX) is a logical XP set over the two exchange points (in Tokyo with GigE and in Osaka with OC12, shared with wide backbone), uses Foundry/Cisco

  • Kenjiro Cho (Sony Computer Science Labs. Inc.):
    - WIDE traffic repository
    - aguri aggregagtoin based traffic profiler
    - DNS (server selection algorithm)

  • Yuji Sekiya (University of Tokyo):
    - performance to root and gTLD nameservers (PAM paper)

  • Joao Damas (Internet Software Consortium):
    - current F-root architecture diagram
    • global servers: Palo Alto, San Francisco (PAIX)
    • local servers: San Jose (MAE-WEST), Madrid (ESPANIX), New York (Telehouse), Hong Kong

  • kc claffy (CAIDA):
    - overview of research programs and results at CAIDA
    • routing analysis (BGP dynamics analysis, atoms, modeling techniques)
    • connectivity analysis (as_core and as_rank visualizations, IXP)
    • traffic analysis (OC48 traces, interarrival time spectroscopy)
    • tool development: passive analysis tools and modules
      * netramet (dns performance, flow statistics)
      * coralreef (DOS attacks, fragmentation)
    • security issues (quarantine, modeling)
    • bandwidth estimation tools and tests


  • funding (J. Murai)

  • research problems:
    • IP -> latitude/longitude mapping by NetGeo
    • routine AS112 log collection from the M-root
    • joint CAIDA/WIDE report on AS112 analysis (A. Broido, A. Kato)
    • expand analysis into SOA and RFC1918 areas (A. Broido)
    • how to instrument anycast root servers for measurements? How to define the location of the anycast root server?
    • study the load distribution by anycast (B. Huffaker)
    • triangulation models for skitter data (B. Huffaker)
    • identify 10 ccTLD servers to monitor (N. Brownlee, K. Cho, Y. Sekiya)

  • at PAM meeting (April, 2003):
    - discuss methodology for comparing measurements of nameserver response time (N. Brownlee, B. Huffaker, k claffy, K. Cho)
    - discuss "April data collection" and determine the logistical requirements

  • Plan another WIDE/CAIDA workshop in 6 months: either before or after the 58th IETF meeting (November 9-14, 2003, Minneapolis):
    - try to organize it in Los Angeles, possibly at ISC (k claffy)
    - prepare announcements and agenda for this workshop (M. Fomenkov)
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