Report on IEPM PPDG efforts for PPDG for the quarter April-June 2003
Report prepared by Les Cottrell, July 12, 2003
Collaboration with IEPM, Network Performance Monitoring
We have co-authored the
Global Grid Forum (GGF)
Working Group (NMWG) document on a
A Hierarchy of Network Performance Characteristics for Grid
Applications and Services and the
Schema/Profile for Network Performance Measurements for Grids.
As part of validating the ideas we have installed Globus3, studied
the GGF OGSA/OGSI documents, created an OGSA Web Services
using Apache Axis and Tomcat. Following this we implemented
web services clients and servers
to access network measurement data from the
The work is being
Warren attended and gave a presentation at the UCL workshop
GGF8 and gave a presentation on
An Implementation of the NMWG Profile Document.
Data Presentation and Visualization
We met with Iosif Legrand, the developer of
Mona Lisa, and following
this installed it at SLAC, and built interfaces to the IEPM-BW
and PingER data.
We are now working with developer to make the Mona Lisa web services
We are working on extracting and displaying useful information on route
changes from our traceroute records.
PingER is now widely recognized as the most extensive source of
world-wide active network monitoring data. It is being heavily used to assist
in quantifying the Digital Divide. We gave a presentation on
Quantifying the Digital Divide to the ICFA/SCIC.
We signed a Memorandum of Understanding with the
Electronic Journal Distribution
Service (eJDS) at the ICTP in Trieste. They are geared top facilitate access
to current scientific literature for free for devloping nations, and so
are very interested in the Digital Divide.
We have been working with a team
from UT Austin to look at the PingER data from an economic
We worked with contacts to restart the
monitoring to hosts in Kazakhstann, Uzbekistan and Vietnam.
We presented a talk on
Quantifying the Digital Divide
at the Internet2
Reaching Collaborators in Hard to Network Parts of
the World Interest Group.
User access to the PingER data has been improved by working with FNAL
to add a new download feature to the PingER graphs.
High speed networking
We were awarded first place award for the CENIC
Road to Ten Gigabits: Biggest, Fastest
in the West. We attended the ceremony ro receive the award
and gave a
presentation on the work.
Les appeared live on
TechTV's Screen Saver show to talk for about 10 minutes about the
Internet2 Land Speed REcord set up with Caltech, CERN, LANL and SLAC.
We also prepared and made an invited presentation at the
North American Network Operators Group (NANOG) on
Achieving Record Speed Trans-Atlantic End-to-end Throughput.
Advancerd TCP STack Evaluation
We have a summer intern student for 4 months and are tooling up to
make new comparisons of advanced TCP stacks, as part of this we
created an RPM of the Web100 patch and applied it for the latest version of
Linux. This will enable us to test HS-TCP.
We started discussions with Aleksander Kuzmanovic on a new low priority
TCP stack he is developing.
WE have also made contact with other researchewrs devloping advanced
TCP stacks. The intent is to evaluate ikt and compare
with other advanced TCP stacks such as FAST, Scalable TCP and
HS TCP as well as with teh standard New Reno stack.
We gave a
presentation on a new
quicker version of iperf, developed at SLAC,
that uses Web100 to reduce the test time by 90% at the Internet2
Joint Techs workshop.
We worked with Caltech and others to submit an NSF/EIN proposal
(UltraLight) to build, maintain and use an optical testbed for
testing TCP stacks, new applications etc. WE also worked with SSRL and
the University of Buffalo on another NSF proposal.
To provide continuity for the IEPM-BW project we have put together a
collaboration of people from SLAC, LBNL, ICIR, ANL and PSC and are
developing the MAGGIE proposal to develop both continuous and on-demand
high speed end-to-end performance monitoring.
Following the renewed interest in IPv6 to support large numbers of IP
addresses that will be needed as more and more objects (phones, soldiers,
mines, personal devices etc.) are networked, we revived our IPv6 monitoring
effort. The first steps were to revive the IPv6 subnet and set
up DNS and NTP on the IPv6 nodes, followed by installing the PingER6
monitoring software. We are also preparing a presentation for the
Internet2 Joint Techs Workshop in August at Lawrence, Kansas.
We prepared and sent in to DoE/MICS
a report on
Significant Accomplishments in the Network Research Program
. At the request of DoE we led the team from LBNL, CAIDA and
NLABR to author and present a
The State of Network Monitoring and Analysis in the US to the
government inter-agency Large Scale Networking group.