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The Quilt Circle 2015
The quilt Circle National Regional Networks Consortium ...Advanced regional networking in support of research and education 2015 Edition A Letter from the President This year’s edition of The Quilt Circle is bursting with projects and programs enabled by the regional research and education networks that comprise our Quilt membership. Naturally, The Quilt is proud of the positive impact our member networks and organizations have on the communities they serve. Our annual publication gives us the opportunity to showcase the work of our members and highlight the collective impact each have on the institutions they serve and support across the nation. Given the depth and breadth of our members’ work, it can be challenging to select a single image that effectively captures and communicates its impact. This year’s cover, the image of DNA strands, is truly a fitting one to represent the work of our regional research and education network community. For those of you already familiar with the work of the regional research and education (R&E) network in your area and for those who are just learning about them for the first time in The Quilt Circle, you will quickly learn that our R&E networking DNA is indeed unique. It is in our R&E networking DNA to ensure our community of connected institutions are able to access advanced networking capabilities, tools and services when and how they need it, with the best possible performance so that the network is not an impediment to scientific progress. It is in our DNA for our networking organizations to be driven by the interests of our user communities to enable these institutions to fulfill their promise and mission. -
Local Infrastructures for School Networking: Current Models and Prospects
DOCUMENT RESUME ED 349 957 IR 015 693 AUTHOR Newman, Denis; And Others _TITLE Local Infrastructures for School Networking: Current Models and Prospects. Technical Report No. 22. INSTITUTION Center for Technology in Education, New York, NY. SPONS AGENCY Department of Education, Washington, DC.; National Science Foundation, Washington, D.C. PUB DATE May 92 CONTRACT 1-135562167-Al; MDR-9154006 NOTE 30p. PUB TYPE Information Analyses (070) Viewpoints (Opinion/Position Papers, Essays, etc.) (120) EDRS PRICE MF01/PCO" Plus Postage. DESCRIPTORS Communications; Comparative Analysis; *Computer Networks; Educational Change; Educational Technology; Elementary Secondary Education; *Futures (of Society); Information Networks; *Local Area Networks; Microcomputers; *Models; *Telecommunications IDENTIFIERS *Wide Area Networks ABSTRACT This paper identifies a paradigm shift that must take place in school networking. The ultimate goal is to retool the schools with a local technical infrastructure that gives teachersand students immediate access to communication systems andinformation resources, thereby supporting the implementation of advancesin pedagogy and educational technology. The current notionof telecomputing cannot address the information requirements locally within the school and, ultimately, will fragment and inhibit any move toward universal access to information resources. A technologyis needed that combines local and wide area networking(LAN and WAN), making access to remote resources part of the everyday work with school computers. This report contains the following sections: (1) The Problem: Combining Local and Wide Area Communication--facts about the current state of school networks and the dissociation of school LANs and WANs;(2) A Brief History of Network Technology;(3) A Convergence of School LAN's and WAN's--integrating and simplifying a school internetwork;(4) Current Models of School LAN-WAN Connectivity--a comparison of six models; and (5) Prospects for the Future. -
The Great Telecom Meltdown
4 The Internet Boom and the Limits to Growth Nothing says “meltdown” quite like “Internet.” For although the boom and crash cycle had many things feeding it, the Internet was at its heart. The Internet created demand for telecommunications; along the way, it helped create an expectation of demand that did not materialize. The Internet’s commercializa- tion and rapid growth led to a supply of “dotcom” vendors; that led to an expec- tation of customers that did not materialize. But the Internet itself was not at fault. The Internet, after all, was not one thing at all; as its name implies, it was a concatenation [1] of networks, under separate ownership, connected by an understanding that each was more valuable because it was able to connect to the others. That value was not reduced by the mere fact that many people overesti- mated it. The ARPAnet Was a Seminal Research Network The origins of the Internet are usually traced to the ARPAnet, an experimental network created by the Advanced Research Projects Agency, a unit of the U.S. Department of Defense, in conjunction with academic and commercial contrac- tors. The ARPAnet began as a small research project in the 1960s. It was pio- neering packet-switching technology, the sending of blocks of data between computers. The telephone network was well established and improving rapidly, though by today’s standards it was rather primitive—digital transmission and switching were yet to come. But the telephone network was not well suited to the bursty nature of data. 57 58 The Great Telecom Meltdown A number of individuals and companies played a crucial role in the ARPAnet’s early days [2]. -
Abkürzungs-Liste ABKLEX
Abkürzungs-Liste ABKLEX (Informatik, Telekommunikation) W. Alex 1. Juli 2021 Karlsruhe Copyright W. Alex, Karlsruhe, 1994 – 2018. Die Liste darf unentgeltlich benutzt und weitergegeben werden. The list may be used or copied free of any charge. Original Point of Distribution: http://www.abklex.de/abklex/ An authorized Czechian version is published on: http://www.sochorek.cz/archiv/slovniky/abklex.htm Author’s Email address: [email protected] 2 Kapitel 1 Abkürzungen Gehen wir von 30 Zeichen aus, aus denen Abkürzungen gebildet werden, und nehmen wir eine größte Länge von 5 Zeichen an, so lassen sich 25.137.930 verschiedene Abkür- zungen bilden (Kombinationen mit Wiederholung und Berücksichtigung der Reihenfol- ge). Es folgt eine Auswahl von rund 16000 Abkürzungen aus den Bereichen Informatik und Telekommunikation. Die Abkürzungen werden hier durchgehend groß geschrieben, Akzente, Bindestriche und dergleichen wurden weggelassen. Einige Abkürzungen sind geschützte Namen; diese sind nicht gekennzeichnet. Die Liste beschreibt nur den Ge- brauch, sie legt nicht eine Definition fest. 100GE 100 GBit/s Ethernet 16CIF 16 times Common Intermediate Format (Picture Format) 16QAM 16-state Quadrature Amplitude Modulation 1GFC 1 Gigabaud Fiber Channel (2, 4, 8, 10, 20GFC) 1GL 1st Generation Language (Maschinencode) 1TBS One True Brace Style (C) 1TR6 (ISDN-Protokoll D-Kanal, national) 247 24/7: 24 hours per day, 7 days per week 2D 2-dimensional 2FA Zwei-Faktor-Authentifizierung 2GL 2nd Generation Language (Assembler) 2L8 Too Late (Slang) 2MS Strukturierte -
Reports' Descriptive (141)
DOCUMENT RESUME ED 372 729 IR 016 654 AUTHOR Eschbach, Darel TITLE What Is the Internet, Who Is Running It and How Is It Used? PUB DATE [Feb 94] NOTE 38p. PUB TYPE Reports' Descriptive (141) EDRS PRICE MF01/PCO2 Plus Postage. DESCRIPTORS Access to Information; *Administration; *Computer Networks; Computer Uses in Education; Diffusion (Communication); *Electronic Mail; *Information Networks; Information Transfer; Technological Advancement; User Needs (Information) IDENTIFIERS *Internet; *National Information Infrastructure; National Science Foundation ABSTRACT The Internet, for the purposes of this discussion, refers to the network that has the National Science Foundation Network (NSFNET) as its backbone. For this paper, internet is the larger connection of networks that provides a minimum basic connection for electronic mail. The network is made up of many segments structured in a multitiered hierarchy from the NSFNET backbone to the networks at participating institutions. Network operations centers and information centers provide for pnysical communications ci-cuits, equipment servicing, and user support services. No one person or agency is responsible for the Internet/internet, but the system works as a result of a background culture and tradition that has developed over the years. There isa wealth of information available on how to usa the Internet/internet as it exists, and a wealth of speculation about its growth in light of the planned National Information Infrastructure. Three figures, three maps, and five attachments illustrate -
Internetworking : Multicast and ATM Network Prerequisites for Distance Learning
Calhoun: The NPS Institutional Archive Theses and Dissertations Thesis Collection 1996-09 Internetworking : multicast and ATM network prerequisites for distance learning Tamer, Murat Tevfink Monterey, California. Naval Postgraduate School http://hdl.handle.net/10945/32280 NAVAL POSTGRADUATE SCHOOL Monterey, California THESIS INTERNETWORKING: MULTICAST AND ATM NETWORK PREREQUISITES FOR DISTANCE LEARNING by Murat Tevfik Tamer September 1996 Thesis Advisors: Don Brutzman Michael Zyda Approved for public release; distribution is unlimited. 19970220 056 .------------------------------------------------- Form Approved REPORT DOCUMENTATION PAGE OMB No. 0704-0188 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time reviewing instructions, searching existing data sources gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Su~e 1204, Arfington, VA 22202-4302, and to the Office of Management and Budget, Paperwork R_eduction Project (0704-0188), Washington, DC 20503. 1. AGENCY USE ONLY CLeave Blank) 12. REPORT DATE 3. REPORT TYPE AND DATES COVERED September 1996 Master's Thesis 4. TITLE AND SUBTITLE 5. FUNDING NUMBERS Internetworking: Multicast and ATM Network Prerequisites for Distance Learning 6.AUTHOR Tamer, Murat Tevfik 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION Naval Postgraduate School REPORT NUMBER Monterey, CA 93943-5000 9. SPONSORING/ MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSORING/ MONITORING AGENCY REPORT NUMBER 11. SUPPLEMENTARY NOTES The views expressed in this thesis are those of the author and do not reflect the official policy or position of the Department of Defense or the United States Government. -
End-To-End Routing Behavior in the Internet
End-to-End Routing Behavior in the Internet Vern Paxson University of California, Berkeley and Lawrence Berkeley National Laboratory [email protected] Abstract Our framework for answering these questions is the measure- ment of a large sample of Internet routes between a number of The large-scale behavior of routing in the Internet has gone virtually with- geographically diverse hosts. We argue that the set of routes is rep- out any formal study, the exception being Chinoy's analysis of the dynamics resentative of Internet routes in general, and analyze how the routes of Internet routing information [Ch93]. We report on an analysis of 40,000 changed over time to assess how Internet routing in general changes end-to-end route measurements conducted using repeated “traceroutes” be- over time. x In x 2and 3 we give overviews of related research and how tween 37 Internet sites. We analyze the routing behavior for pathological routing works in the Internet. In x 4 we discuss the experimental and conditions, routing stability, and routing symmetry. For pathologies, we statistical methodology for our analysis. In x 5wegiveanoverview characterize the prevalence of routing loops, erroneous routing, infrastruc- of the participating sites and the raw data. We classify a number ture failures, and temporary outages. We find that the likelihood of encoun- of routing pathologies in x 6, including routing loops, rapid routing tering a major routing pathology more than doubled between the end of changes, erroneous routes, infrastructure failures, and temporary 1994 and the end of 1995, rising from 1.5% to 3.4%. -
Domestic and International Telecommunications
NASA-C_-IgI660 U.S. COMPUTER RESEARCH NETWORKS: DOMESTIC AND INTERNATIONAL TELECOMMUNICATIONS CAPACITY REQUIREMENTS oo co .,,o PREPARED FOR: ,o e..,i to I'.- t NASA Lewis Research Center U C: ,..4 z O Contract No. NAS3-25083, Task Order 4 N ',,0 J. E. Hollansworth et_ L9 PREPARED BY Contel Federal Systems Government Networks Group o. D. Kratochvil And D. Sood M5 t_ t_ £ tit DECEMBER, 1990 L _0 U. m Jlm PREFACE This report was prepared by Contei Federal Systems for the NASA Lewis Research Center under Task Order 4 of the Contract NAS3-25083. Under this contract, Contel Federal Systems provides technical support to NASA for the assessment of the future market for satellite communications services. Task Order 1 focused on the costs and tariffs for telecommunications services. Task Order 2 dealt with the current and future domestic telecommunications requirements of the United States research community. Task Order 3 identified the legal and regulatory issues related to Direct Broadcast Satellite-Radio. Task Order 4, the results of which are presented in this report and summarized in Section 1, Introduction And Summary, focused on the impact of current and future international telecommunications requirements of the United States research community. Page ii ACKNOWLEDGMENTS The authors would like to thank members of the Coordinating Committee For Intercontinental Research Networking (CCIRN), the Federal Coordinating Council for Science, Engineering and Technology (FCCSET), the Federal Research lnternet Coordinating Committee (the FRICC which now has been replaced by the Federal Networking Council, FNC), and other Federal agency representatives who provided information on their networks. -
The Building of the Internet
The building of the Internet Implications for the future of broadband networks Jeffrey A. Hart, Robert R. Reed and Francois Bar The Internet, a system of intercon- The Internet’ is a loosely organized system of interconnected computer netted computer n&works primarily in networks, which primarily serves the research and education commun- the USA, can be seen as an experiment in the development, deployment and ity. Its large and growing community of sophisticated users, the diversity use of hiah-soeed networks. and as of applications and uses it fosters, and the trials now underwav within such can”prdvide guidance for the gigabit testbeds make the Internet one of the boldest real-life experi- shaping of the future national telecom- munications Infrastructure. Internet’s ments in broadband networking today. As a result the unfolding of the significance lies not only in the tech- Internet’s history, the dynamics of its evolution and the policy issues it nologles it helps develop, but more im- raises hold useful insights into the future evolution of telecommunica- pottantly in the new usage dynamics it helps uncover, the new network man- tions networks. The challenges facing the Internet community today agement mechanisms it tests and the presage the more general challenges that policy makers will have to new policy strategies it explores. tackle if they want to foster the emergence of an advanced national network infrastructure. Three facets of the Internet story are especially Jeffrey Hart is with the Department of Political Science, Indiana University, relevant. Bloomington, IN 47405, USA (Internet: First, data traffic over the Internet is growing explosively. -
Don M. Blumenthal, 2010 License
Author(s): Don M. Blumenthal, 2010 License: Unless otherwise noted, this material is made available under the terms of the Attribution – Non-commercial – Share Alike 3.0 license http://creativecommons.org/licenses/by-nc-sa/3.0/ We have reviewed this material in accordance with U.S. Copyright Law and have tried to maximize your ability to use, share, and adapt it. The citation key on the following slide provides information about how you may share and adapt this material. Copyright holders of content included in this material should contact [email protected] with any questions, corrections, or clarification regarding the use of content. For more information about how to cite these materials visit http://open.umich.edu/education/about/terms-of-use. Any medical information in this material is intended to inform and educate and is not a tool for self-diagnosis or a replacement for medical evaluation, advice, diagnosis or treatment by a healthcare professional. Please speak to your physician if you have questions about your medical condition. Viewer discretion is advised: Some medical content is graphic and may not be suitable for all viewers. Citation Key for more information see: http://open.umich.edu/wiki/CitationPolicy Use + Share + Adapt { Content the copyright holder, author, or law permits you to use, share and adapt. } Public Domain – Government: Works that are produced by the U.S. Government. (USC 17 § 105) Public Domain – Expired: Works that are no longer protected due to an expired copyright term. Public Domain – Self Dedicated: Works that a copyright holder has dedicated to the public domain. -
Telecommunications and K-12 Educators: Findings from a National Survey
DOCUMENT RESUME ED 359 923 IR 016 132 AUTHOR Honey, Margaret; Henriquez, Andres TITLE Telecommunications and K-12 Educators: Findings from a National Survey. INSTITUTION Center for Technology in Education, New York, NY. SPONS AGENCY Office of Educational Research and Improvement (ED), Washington, DC. PUB DATE 93 CONTRACT R117F80011 NOTE 95p. PUB TYPE Reports Descriptive (141) -- Reports Research /Technical (143) EDRS PRICE MF01/PC04 Plus Postage. DESCRIPTORS Classroom Techniques; Computer Assisted Instruction; *Computer Networks; Educational Improvement; *Educational Technology; *Elementary School Teachers; Elementary Secondary Education; Information Netwcrks; Information Transfer; Instructional Leadership; Media Specialists; National Surveys; Profiles; *Secondary School Teachers; Tables (Data); Teacher Education; Technological Advancement; *Telecommunications IDENTIFIERS Internet; Teacher Surveys ABSTRACT A survey was conducted to obtain a systematic profile of activities currently being undertaken by kindergarten through grade 12 educators in telecommunications technology. Based on the responses of 550 educators from 48 states, selected because of their involvement with computer technology, this survey represents the first large-scale description of educators' telecommunications practices. Benefits and obstacles to using telecommunications effectively as a professional resource and a learning tool are described; findings suggest that telecommunications serve asa valuable resource for both of these purposes for educators who responded. These educators represent a specialized group of highly educated and experienced teachers, who are knowledgeable about computer technology and who have been using a range of computer-based applications in classrooms for several years. Computer and library media specialists are generally the leaders in telecommunications practices, serving as a resource for other teachers. Most respondents are self-taught, and their responses highlight the lack of training in telecommunications for teachers. -
A History of the Internet
2/14/19 A History of the Internet Scott Bradner BKC 2019-02-05 1 An Internet History (1945) 1957-present • A series of people and events that got us to today’s Internet Representative, not comprehensive • What caused it to have the impact it has had • What does the future look like? 2 1 2/14/19 Sputnik 1957 • 4 October 1957 • 1st man made satellite • Launched by Soviet Union • Caused hysteria Roger Launius Sputnik and the Origins of the Space Age • The sky seemed almost alien Lyndon B. Johnson 3 Dwight David Eisenhower 1958 • U.S. President – 1953-1961 • January 1958: Eisenhower, following advice from his science advisor Jim Killian, reacted to Sputnik by establishing the Advanced Research Projects Agency (ARPA) within the U.S. Dwight David Eisenhower Department of Defense 4 2 2/14/19 ARPA Mission • Official: The Agency shall be responsible for the direction or performance of such advanced projects in the field of research and development as the Secretary of Defense shall, from time to time, designate by individual project or by category.1 • Actual?: to prevent technological surprise like the launch of Sputnik2 1: http://semanticvoid.com/docs/darpa_directive.pdf 2: http://www.dtic.mil/cgi-bin/GetTRDoc Location=U2&doc=GetTRDoc.pdf&ADA433949 DoD Directive No. 5105.15 http 5 Paul Baran 1960-64 • Hughes Aircraft & RAND Corp. Funded by US Air Force • 1960: Reliable Digital Communications Systems Using Unreliable Network Nodes Reliability through redundancy • 1962: On Distributed Communications Networks Paul Baran Basic concepts of packet switched networks 6 3 2/14/19 Paul Baran, contd.