Transcript View on Delft

View on Delft
Connecting staff and students to
the network of the Delft University
of Technology
Antalya, may 16, 2001
View on Delft, TERENA networking conference, may 2001
Introduction
Delft 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
Introduction
City 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
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View op Delft 1988
Access by telephone
connection (analog).
NC
150
250
Staff only, dial-back
“happy few”
570
campus
450 350
NC
530
125
Legend:
homes of staff
700
XX
student housing
NC
ABX
View on Delft, TERENA networking conference, may 2001
View op Delft 1992
Access by telephone
connection (analog).
NC
150
250
570
Staff and students
(individual) dial-in and
dial-back.
Students: “happy few”
campus
450 350
NC
530
125
Legend:
homes (individual)
700
XX
student housing
NC
ABX
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Summary
Call-in and call-back facilities
1988
First connections,
on telephone exchange
1993
PSTN gateway, POTS and ISDN
1998
National provider (regional access)
Current situation:
• 12500 connection hours per week
• 13000 student accounts
• 4000 staff accounts
View on Delft, TERENA networking conference, may 2001
View on Delft 1995
Start networking in
student housing.
NC
150
250
105
570
Connection by ISDN
routers
90
campus
450 350
Legend:
NC
530
125
XX
student housing
NC
ABX
700
ISDN routers
View on Delft, TERENA networking conference, may 2001
Small student housing
ISDN 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
View on Delft 1997
Start fiber to large
student housing.
NC
150
90
250
105
570
Co-operation with
housing corporation
90
Legend:
campus
450 350
NC
530
700
560
Fiber 10 Mb/sec
125
XX
student housing
NC
ABX
ISDN routers
fiber 10Mb/s
View on Delft, TERENA networking conference, may 2001
Large student housing
Fiber 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
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View on Delft 1999
Start networking in
student housing.
NC
150
90
250
105
570
Connection by ISDN
routers (64-128 Kb/s)
90
Legend:
campus
450 350
NC
530
125
100
700
XX
student housing
NC
ABX
ISDN routers
560
fiber 10Mb/s
View on Delft, TERENA networking conference, may 2001
ADSL
DOWNSTREAM
CAPACITY
•
•
•
for staff
for students
for student groups
256 / 512 Kb/s
256 / 512 Kb/s
0,5 / 1 / 2 / 4 Mb/s
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ADSL realized
• students individual
• groups 2 - 5
• groups 6 - 10
• groups 11- 20
• groups 21- 40
• staff individual
capacity
number
256/512 Kbit/s
512 Kbit/s
1 Mbit/s
2 Mbit/s
4 Mbit/s
256/512 Kbit/s
50 / 105
41 / 261
2 / 59
3 / 23
3/6
28 / 103
data: may 6 2001
View on Delft, TERENA networking conference, may 2001
Fiber to the dormitory
• capacity 2 Mb p.p. with a
contingency factor of 20%
• 2600 students on 5 locations
• traffic separation between students
DUT and other occupants
• authentication and autorisation by
smartcard
View on Delft, TERENA networking conference, may 2001
Fiber to the dormitory
Traffic routing
DUT
Delft University
of Technology
OIHE
other institute
of higher education
Dormitory
Cistron Commercial
provider
DUT
OIHE
Cistron
student DUT
student OIHE
non-student
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Fiber to the dormitory
To reduce the costs
• Don’t economize on network equipment.
• Make simple and clear arrangements in relation
to administration and organization
with housing agency and other providers.
• Use students to support other students.
• Use students for local network management.
View on Delft, TERENA networking conference, may 2001
View on Delft 2001
Most connections by
ADSL or by fiber.
NC
150
90
250
105
570
90
Legend:
campus
450 350
NC
Fiber minimal 100 Mb/s
up to 1 Gb/s.
530
125
100
700
560
ADSL
XX
student housing
NC
ABX
fiber min. 100 Mb/s
View on Delft, TERENA networking conference, may 2001