[e2e] Announcement: a new network measurement platform
misha at eecs.cwru.edu
Fri Jan 5 06:51:26 PST 2007
We are pleased to announce the availability of DipZoom P2P network
measurement infrastructure. Unlike existing approaches that face a
difficult challenge of building a measurement platform with
sufficiently diverse measurements and measuring hosts, DipZoom offers
a matchmaking service instead, bringing together experimenters in
need of measurements with external measurement providers.
Salient features of DipZoom are:
1. DipZoom is an open system. Anyone can perform measurement
experiments autonomously. We seeded the system with over a hundred
measurement points (MPs) on PlanetLab nodes. Several residential
measurement points are also available.
2. DipZoom is an extensible system. While its current standard
distribution offers wget, ping, traceroute, and nslookup
measurements, anyone can add new measurements as plug-ins, and
recruit participants to install these plugins on their MPs.
3. DipZoom offers a coherent view over the entire collection of
measurement points, which are all accessible from any local computer
with DipZoom installed. The only restriction is that, in the peer-to-
peer spirit, in order to run a DipZoom client, the computer must also
offer measurements by becoming a DipZooom measurement point.
4. DipZoom offers both navigational and programmatic access to the
entire platform. For navigational access, there is a graphical
DipZoom client that allows the user to browse available MPs, select
the MPs according to a number of characteristics (platform, location,
autonomous system), and obtain measurements from those MPs. For
programmatic access, DipZoom provides APIs to script and run complex
globally distributed measurement experiments from a local computer.
The APIs are implemented by a Java class library and can be called
from any Java application. As a test of the usability of DipZoom
APIs, students in the Fall'07 undergraduate networking class were
able to perform a complex measurement experiment (investigating the
quality of Akamai's server selection) in a matter of days.
5. Utmost care is paid to security, including the rate limiting of
requests to both any given measurement point and to any given
DipZoom runs on windows, linux, and Mac OS platforms, and can be
freely downloaded from http://dipzoom.case.edu/ . The site also
includes further details on the system and links to the mailing list
and people involved. Please send your comments to any of us.
We hope you will find DipZoom useful and fun.
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