1 for students and employees Tom Koppen director computing center TERENA Networking Conference 2000 Lisbon, 22-25 May.

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Presentation transcript:

1 for students and employees Tom Koppen director computing center TERENA Networking Conference 2000 Lisbon, May

2 And now something totally different Different accent Not a technical expert Case study on home connection for students

3 University of Twente

4

students living on campus 4000 students living in town 2500 staff living in town

6 University of Twente technical and social studies telematics, chip technology, process engineering, biomedical engineering educational technology

7 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

8 Why connection at home? “ICT in education” –Intranet –Internet –File serving –Communication Education free of time Education free of place

9 Why broadband connection? Course Management Systems Streaming video Multicast Videoconferencing Collaborative workspace

: dial back Own modem pool For file-transfer and internal 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”

: CAMPUSnet all 2000 student rooms on campus 10 Mbps shared Ethernet Fee: € 7 per month Also: free account for all students Result: from 50 % subscription  100 %

: ISDN Faster: 64 or 128 kbps Phone calls possible while surfing More used by staff then by students

: 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

: 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 local loop, updating the technology is affordable.

15 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

16 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.

17 Menu à la carte Dial-in PSTN56 kbpsphone pulses Dial-in ISDN64 or 128 kbps + € 9 subscription phone pulses Cable modemmax 0.5 Mbps€ 19 ADSL2 - 8 Mbps€ 38 CAMPUSnet100 Mbps€ 10

18 200X: wireless Wireless LAN’s GPRS UMTS

19 Internet traffic during the day Twente Big city

20 Prognosis

21 How to lower costs and improve quality The telco only for the local loop To be done within university: –Authentication –Access to Internet – and other network services –Helpdesk –Administration and billing Keep administration simple

22 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”.

23