NSF's next step in terascale computing, the Extensible Terascale Facility (ETF), will be a scalable distributed computational grid based on the TCS and the DTF. The ETF will be integrated by an ultra high-speed network (a "backplane network") and will enable science and engineering researchers to conduct analyses at unprecedented scale, to merge multiple data resources seamlessly, and to advance discovery at the frontiers of science and engineering. It will also be a platform for advancing computer science and engineering research on scalable systems.
The basic idea in Pathload is that the one-way delays of a periodic packet stream show increasing trend when the stream rate is larger than the avail-bw. The measurement algorithm is iterative and it requires the cooperation of both the sender and the receiver. Pathload in non-intrusive, meaning that it does not cause significant increases in the network utilization, delays, or losses. The tool has been verified experimentally, by comparing its results with SNMP utilization data from the path routers
We have developed a measurement methodology that can estimate the capacity of Internet paths. The methodology has been implemented in a tool called Pathrate. An important feature of Pathrate is that it is robust to cross traffic effects, meaning that it can measure the path capacity even when the path is significantly loaded.
A quick reminder about VRVS services. Have a look at this site. Russ and I think this would be a good place for us to have our TAG, staff, and other meetings.
Unv of Minnesota: Equipment, Infrastructure and Wiring Standards
The Office of Information Technology is responsible for providing voice, data and video services for the University of Minnesota. Every effort is being made to keep the rates for these services as low as possible, while still providing service and maintenance in a timely manner. OIT is constantly evaluating emerging technologies and equipment so that we can continue to offer the most reliable, up to date and cost effective services.
It is essential to design the Telecommunications Systems to meet present and future voice and data communications needs. Horizontal and vertical wiring and the pathways and communication rooms should be considered an integral part of the building infrastructure and therefore capable of future growth as new technology and customer needs change. Voice and data projects that are released for bid should be bid separately from and not included with security, audiovisual, building control systems or other equipment or materials that are not directly associated with the independent high speed data or voice communications system. Refer to OIT web page for most recent revision of these standards (http://www1.umn.edu/nts/wiring3.shtml). The standards herein apply to the technologies in use at the time of the latest update to these standards. The implementation of newer technologies will require adherence to the standards written at the time of that implementation.
California State Unv: Telecommunications Infrastructure Planning (TIP) Guidelines
In 1987, the CSU published the Systemwide Cable Plan document to establish a guideline for planning, installing, and maintaining telecommunications cable and wire in a uniform manner. In 1995, the document was revised and expanded to include information on telecommunication support infrastructure and became the first version of the Telecommunications Infrastructure Planning (TIP) Guidelines.
While both documents were successful at addressing portions of the telecommunications infrastructure issue, some of their provisions must be revised to encompass changes in technology and CSU system strategies. These updated guidelines reflect the introduction of new alternatives, changes in the cost-effectiveness of others, a greater emphasis on "standard" models within the CSU system, and the evolution of true national standards. This edition of the TIP Guidelines is intended to completely replace the earlier documents.
This is the page where all the presentations from the meeting are posted. You can find presentations from E2Epi sessions here. So far (Wed morning) there are two sets from the piPEfitters session yesterday.
ANEMOS: An Autonomous NEtwork MOnitoring System (PDF document)
University of Delaware
Abstract -- We describe the design and implementation of ANEMOS, an Autonomous NEtwork MOnitoring System. ANEMOS allows network operators and end-users to schedule, perform, and analyze active measurements on several network paths through a Web-based GUI. The measurements can be performed with "off-the-shelf" tools, such as Ping. The current prototype measures end-to-end available bandwidth with Pathload, and round-trip delays and losses with a UDP-based configurable variation of Ping. The measurements are archived using the MySQL database, and they can be visualized using MRTG. A major feature of ANEMOS is that it supports rules, post-processing, and alarm detection. Specifically, the user can form processing rules, correlating measurements of different metrics, paths, and time intervals. These rules are then used to detect changing or alarming conditions in the performance of one or more paths, issuing informative alarms. We illustrate ANEMOS with measurements that resulted from monitoring a few paths in US and Europe.
This is the site for the SC'03 Conference.