view on delft, terena networking conference, may 2001 view on delft connecting staff and students to...

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


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

(1661-1664)

Johannes Vermeer


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


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


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


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


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


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


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 Complex

Balthasar van de Polweg


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


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


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



Traffic routingTraffic routing

Dormitory

DUT OIHE Cistron

DUT Delft University of Technology

OIHE other instituteof higher education

Cistron Commercial provider

student DUTstudent OIHEnon-student



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.


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 view on delft connecting staff and students to...

Documents

terena networking conference

student support view

experience view

polweg view

staff accounts view

delft complex balthasar

th century view

communication technology