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Explore a case study on broadband connections for students and staff at University of Twente, highlighting the evolution of networking technology, the importance of broadband access, and the impact on educational quality. Discover how universities can enhance ICT in education through robust home connections.
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TERENA Networking Conference 2000Lisbon, 22-25 May broadband_connection@home for students and employees Tom Koppen director computing center
And now something totally different • Different accent • Not a technical expert • Case study on home connection for students
University of Twente • 2000 students living on campus • 4000 students living in town • 2500 staff living in town
University of Twente • technical and social studies • telematics, chip technology, process engineering, biomedical engineering educational technology
The network on campus • Within buildings: switched Fast Ethernet • Between buildings: Gigabit Ethernet • SURFnet: • 1994: 4 Mbps • 1997: 34 Mbps • 1999: 155 Mbps • 2000: 1 Gbps • 2002: 20 Gbps
Why connection at home? • “ICT in education” • Intranet • Internet • File serving • Communication • Education free of time • Education free of place
Why broadband connection? • Course Management Systems • Streaming video • Multicast • Videoconferencing • Collaborative workspace
1992: dial back • Own modem pool • For file-transfer and internal e-mail • 14.4 kbps, later 28.8 kbps • In the beginning: free of charge • Later: 300 minutes/month free • Results: • Number of accounts slowly growing • Users want to be “always on”
1994: CAMPUSnet • all 2000 student rooms on campus • 10 Mbps shared Ethernet • Fee: € 7 per month • Also: free e-mail account for all students • Result: from 50 % subscription 100 %
1996: ISDN • Faster: 64 or 128 kbps • Phone calls possible while surfing • More used by staff then by students
1998: Dial-in • Special contract with cable company • PSTN and ISDN • Free of charge (except phone pulses) • Local phone tariff everywhere in NL • Possible by competition in telecom world • All students and staff an account
1999: update CAMPUSnet • 50 hubs replaced by switches • Faster:10 Mbps shared 100 Mbps switched • Safer: no sniffling anymore • Paid by raising fee from € 7 to € 10 • Conclusion: once you possess the localloop, updating the technology is affordable.
April 2000: cable modems • Special arrangement with cable company • Faster: maximum 0.5 Mbps • Authentication by UT • Fixed IP-numbers: intranet access • At last a flat fee: € 19 • Sharing the connection permitted
July 2000: ADSL • Access Pilot with GigaSURF • Partner: datacom company Casene • Concentrators in 6 cities in the region • Minimum 2 Mbps 8 Mbps • Flat fee: € 36 • Results: earlier at our disposal, much more bandwidth, more certainty, a lot cheaper.
200X: wireless • Wireless LAN’s • GPRS • UMTS
Internet traffic during the day Twente Big city
How to lower costs and improve quality • The telco only for the local loop • To be done within university: • Authentication • Access to Internet • E-mail and other network services • Helpdesk • Administration and billing • Keep administration simple
Conclusion The connections to the homes commercial ISP’s offer are not fast enough for a reasonable price. Universities should take responsibility for broadband Internet access of their students, if they have any ambition with “ICT in education”.