ppt experience in implementing for education 12 1997

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Experience in Implementing

Internet for Education

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Focus

 _{Existing Implemented Infrastructure.}  _{Technology Implemented to Support}

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Outline

 _{Current Infrastructure.}

 _{Brief overview on our research} results in:

 _{physical layer.}  _{Network layer.}

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Internet Exchange

Indonesia Exchange Ethernet

To Japan 1.55Mbps 2Mbps

IX Telkom

VSAT TDMA 128/64Kbps

cache cache _router

router Access Server

ITB Network

router Jakarta - 4Mbps

Malang - 128Kbps Surabaya - 128Kbps

Terrestrial Network

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

AX.25 Packet Radio

Internet Exchange

IX Telkom

cache cache _router

ITB Network

router

Jakarta - 4Mbps Malang - 128Kbps Surabaya - 128Kbps

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

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Internet Exchange

IX Telkom

cache cache _router

ITB Network

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

Internet Exchange

IX Telkom

cache cache _router

ITB Network

router

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

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Internet Exchange

IX Telkom

cache cache _router

ITB Network

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

Internet Exchange

IX Telkom

cache cache _router

ITB Network

router

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

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Internet Exchange

IX Telkom

cache cache _router

ITB Network

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

Internet Exchange

IX Telkom

cache cache _router

ITB Network

router

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

SCPC

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Internet Exchange

IX Telkom

cache cache _router

ITB Network

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

Internet Exchange

IX Telkom

cache cache _router

ITB Network

router

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

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Internet Exchange

IX Telkom

cache cache _router

ITB Network

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

Internet Exchange

IX Telkom

cache cache _router

ITB Network

router

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

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Internet Exchange

IX Telkom

cache cache _router

ITB Network

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

Internet Exchange

IX Telkom

cache cache _router

ITB Network

router

VSAT SCPC 19.2-64K JCSAT-3

Palapa C1

CDMA 2Mbps

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Results in Physical Layer

 _{Homebrew 2Mbps CDMA.}

 _{VSAT TDMA vs. SCPC Network.}  Low Cost Access for Schools.

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VSAT TDMA vs. SCPC

 _{VSAT TDMA 128Kbps Outbound}

 _{VSAT TDMA 64Kbps Inbound}

 _{VSAT TDMA is not suitable for Internet}

application (especially Web).

 _{Tune TDM for 40 byte (originally}

256byte packet).

 _{Migrating to VSAT SCPC 19.2Kbps at}

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Homebrew 2Mbps CDMA

 Uses Lucent CDMA 2Mbps card

915MHz 250mW.

 _{Run on FreeBSD.}

 _{Homebrew antenna (cost ~US$150).}

 Max. distance 15km (use PA for more).

 _{Most of our high speed MAN using this}

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Consequences CDMA2Mbps

 _{bypassing local line.}

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Homebrew 64-256Kbps

packet radio

 We are prototyping 64-256Kbps packet

radio network in the lab by

[email protected].

 _{AX.25 link layer protocol is used.}

 _{GMSK MX 586 one chip modem is used.}  _{We drive the modem via parallel port.}  _{MMIC Minicircuit is being build for}

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Low Cost Access for Schools

 _{AX.25 1200bps Packet Radio} Network.

 Proxy Server.

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IntraNet

LAN

Proxy &

Dial on Demand

Radio AX.25

Packet Radio Gateway AX.25

Network

InterNet

IntraNet

LAN

Proxy &

Dial on Demand

Radio AX.25 Packet Radio Gateway

AX.25 Network

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Amateur Radio Network

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PC/Gateway

PC/gateway

PC/Gateway

Radio Tower

TCP/IP

44.132.80

44.132.16

44.132.24

Linux / DOS Radio Tower

44.x.x.x

Radio Tower

TCP/IP 44.132.80

44.132.16

44.132.24

Linux / DOS

Radio Tower

44.x.x.x

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Application Layer

TCP

AMPRNet IP (44.x.x.x)

InterNet IP

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Results in Network Layer

 _{Network Monitoring by} [email protected].

 _{Monitor at http://netmon.itb.ac.id/}

 _{Network Map}

 _{Sample of traffic by protocol, port, etc.}

 _{Graph of total traffic.}

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Results in Application Layer

 _{Mailing Lists}

 _{English Technical Writting Course} distance learning test bed.

 Cache & Cache Monitoring.  _{MPEG-3 Test Bed.}

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Cache

 _{ITB has set 4 Parents.}

 _{Cache person is [email protected]}  We cache all of our Web traffic.  check out

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Mailing Lists

 _{Uses majordomo on FreeBSD}

 _{Run on Dual Pentium 166MHz 32Mb RAM.}

 _{More than 220 mailing lists at ITB. (more}

than 75% Indonesian mailing lists).

 _{More than 10.000 subscribers.}

 _{We are trying to build the community in}

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Distance Learning

 _{ITB’s Server:}

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Video Conference

 _{25 October 1997: 14:00 Indonesia Time.}  _{Three Cities: Bandung-Surabaya-Malang}  _{CU-SeeMe & Its Reflector.}

 _{Aiming for high school network in}

Indonesia.

 _{July 1997: Panel Discussion on the}

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Video on Demand

 _{Supported by Microsoft & Progressive} Network.

 _{Splitter for UNFCC COP3 December} 1997.

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Summary

 _{ITB has managed to integrate more than}

20 educational institutions to Internet.

 _{Major IT used:}

 _{2Mbps CDMA Network.}

 _{Web based distance learning.}

 _{Real Publisher / Microsoft NetShow.}

 _{Key to success:}

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