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View on Delft, TERENA networking conference, may 2001
View on DelftView on Delft
Connecting staff and students to the network of the Delft University
of Technology
Antalya, may 16, 2001
IntroductionIntroductionDelft University of Technology
• 7 faculties, 16 courses, among them:mathematics, electrical engineering, civil engineering, architecture, aerospace engineering, applied physics, chemical engineering, etc.
• 13000 students• 4000 staff• 4 service departements, among them:
DTO, department for technical support; including support for information and communication technology
View on Delft, TERENA networking conference, may 2001
IntroductionIntroductionCity of Delft
• Mediaeval town• Between Rotterdam and The Hague• 90000 inhabitants• Historical center of royal family• Cultural centre in 16-th and 17-th
century
View on Delft, TERENA networking conference, may 2001
View on Delft
(1661-1664)
Johannes Vermeer
View on Delft, TERENA networking conference, may 2001
View on Delft 1664
View on Delft 1900
View on Delft 1950
View on Delft 1970
View on Delft 1980
View on Delft 1985
Legend:
homes of staff
student housing
ABX
campus
700
View op Delft 1988
Access by telephone connection (analog).
Staff only, dial-back
“happy few”
NC
NC
XX
NC
450 350
570
125530
150
250
View on Delft, TERENA networking conference, may 2001
Legend:
homes (individual)
student housing
ABX
campus
700
View op Delft 1992
Access by telephone connection (analog).
Staff and students (individual) dial-in and dial-back.
Students: “happy few”
NC
NC
XX
NC
450 350
570
125530
150
250
View on Delft, TERENA networking conference, may 2001
SummarySummaryCall-in and call-back facilitiesCall-in and call-back facilities
19881988 First connections, First connections,
on telephone exchangeon telephone exchange
19931993 PSTN gateway, POTS and ISDNPSTN gateway, POTS and ISDN
19981998 National provider (regional access)National provider (regional access)
Current situation:Current situation:
• 12500 connection hours per week12500 connection hours per week
• 13000 student accounts13000 student accounts
• 4000 staff accounts4000 staff accounts
View on Delft, TERENA networking conference, may 2001
Legend:
student housing
ABX
ISDN routers
campus
700
View on Delft 1995
Start networking in student housing.
Connection by ISDN routers
NC
NCXX
NC
450 350
570
125530
150
250
105
90
View on Delft, TERENA networking conference, may 2001
Small student housingSmall student housing
ISDN routersISDN routers
• ISDN routers free
• connection costs (pulses) for students
• local network infrastructure made by students
• IP adresses DUT (subdomains)
• contacts per house
• exchange of knowledge and experience
View on Delft, TERENA networking conference, may 2001
Legend:
student housing
ABX
ISDN routers
fiber 10Mb/s
campus
700
View on Delft 1997
Start fiber to large student housing.
Fiber 10 Mb/sec
Co-operation with housing corporation
NC
NCXX
NC
450 350
570
125
90
530
150
250
560
105
90
View on Delft, TERENA networking conference, may 2001
Large student housing Large student housing
Fiber connectivityFiber connectivity
• co-operation with housing agency DUWO
• DUWO takes care of network infrastructure
• network maintenance and support by DUT
• IP adresses DUT (subdomain)
• “netwerknestor” per location (local network management)
• costs fl. 12,- till fl. 15,- per month per occupant
• student organisation OLI for student support
View on Delft, TERENA networking conference, may 2001
View on Delft, TERENA networking conference, may 2001
View on Delft Complex
Balthasar van de Polweg
View on Delft, TERENA networking conference, may 2001
Legend:
student housing
ABX
ISDN routers
fiber 10Mb/s
campus
700
View on Delft 1999
Start networking in student housing.
Connection by ISDN routers (64-128 Kb/s)
NC
NC
XX
NC
450 350
570
125
90
530
150
250
560
100
105
90
View on Delft, TERENA networking conference, may 2001
ADSLADSL DOWNSTREAM
CAPACITY
• for stafffor staff 256 / 512 Kb/s256 / 512 Kb/s
• for studentsfor students 256 / 512 Kb/s256 / 512 Kb/s
• for student groupsfor student groups 0,5 / 1 / 2 / 4 Mb/s0,5 / 1 / 2 / 4 Mb/s
View on Delft, TERENA networking conference, may 2001
ADSL realizedADSL realized
capacity number
• students individualstudents individual 256/512 Kbit/s 256/512 Kbit/s 50 / 50 / 105105
• groups 2 - 5groups 2 - 5 512 Kbit/s512 Kbit/s 41 / 41 / 261261
• groups 6 - 10groups 6 - 10 1 Mbit/s1 Mbit/s 2 / 2 / 5959
• groups 11- 20groups 11- 20 2 Mbit/s2 Mbit/s 3 / 3 / 2323
• groups 21- 40groups 21- 40 4 Mbit/s4 Mbit/s 3 / 3 / 66
• staff individualstaff individual 256/512 Kbit/s 256/512 Kbit/s 28 / 28 / 103103
data: may 6 2001 View on Delft, TERENA networking conference, may 2001
Fiber to the dormitoryFiber to the dormitory
• capacity 2 Mb p.p. with acapacity 2 Mb p.p. with a contingency factor of 20%contingency factor of 20%• 2600 students on 5 locations2600 students on 5 locations• traffic separation between studentstraffic separation between students DUT and other occupantsDUT and other occupants• authentication and autorisation by authentication and autorisation by smartcardsmartcard
View on Delft, TERENA networking conference, may 2001
Fiber to the dormitoryFiber to the dormitory
Traffic routingTraffic routing
Dormitory
DUT OIHE Cistron
DUT Delft University of Technology
OIHE other instituteof higher education
Cistron Commercial provider
student DUTstudent OIHEnon-student
View on Delft, TERENA networking conference, may 2001
Fiber to the dormitoryFiber to the dormitory
To reduce the costsTo reduce the costs
• Don’t economize on network equipment.Don’t economize on network equipment.• Make simple and clear arrangements in relationMake simple and clear arrangements in relation to administration and organizationto administration and organization with housing agency and other providers.with housing agency and other providers.• Use students to support other students.Use students to support other students.• Use students for local network management.Use students for local network management.
View on Delft, TERENA networking conference, may 2001
Legend:
ADSL
student housing
ABX
fiber min. 100 Mb/s
campus
700
View on Delft 2001
Most connections by ADSL or by fiber.
Fiber minimal 100 Mb/s up to 1 Gb/s.
NC
NC
XX
NC
450 350
570
125
90
530
150
250
560
100
105
90
View on Delft, TERENA networking conference, may 2001