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DISTANCE LEARNING AND THE INTERNET CONFERENCE
“REACHING THE 31st YEAR OF CAR” BANGKOK - THAILAND
Global Development Learning Network
“WORLD BANK’s EXPERIENCES AND OUTLOOK”
Le Vu
TOKYO DEVELOPMENT LEARNING CENTER
TOKYO
PART 1PART 1
THE CONTEXT: DEVELOPMENT LEARNING
The World Bank yesterday launched a telecommunications system …
… spanning multiple time zones, overcoming technology gaps, and encompassing many points of
view …"We are using technology to ensure that everyone
has equal access to knowledge."
The number of sites equipped with DLCs expected to increase to 50 countries by 2002.
back in the year 1997
Using interactive video, electronic classrooms, satellite communications and internet facilities to
help break down the digital divide …
A KNOWLEDGE BANK
• BETTER AID FOR A BETTER FUTURE– Knowledge development and dissemination within
the Bank– Knowledge development and dissemination within
partner countries– Knowledge Development between countries
“our services will be increasingly in the area of the application of global know-how to local needs”
“this is not a university – rather it is a “brain trust” of applied experience”
“We aim to be faster, better, and cheaper.“
“Delivering, expanding, and testing this knowledge is the most important part of our work.“
World Bank President Zoellick in his “100-day speech” …
relevant
today 2007 - not just any knowledge
applied
just-in-time
ISG
WBI
ECA
EAPMNA
multiple networks, 100+ centers, ±500 PoPs?
HOW TO BRIDGE DISTANCE AND TIME
• High-speed, reliable network of regional satellites, fiber and the
Internet
• A network of 3 satellites serves GDLN sites in Africa, Asia, Europe,
Latin America and the Caribbean, and the Middle East
• Internet and Internet 2 access to over 120 Countries
DLC IN NINGXIA (CHINA) Over CERNET
“I have the money and the resources to build schools, but I cannot get the best of my teachers to go to the rural areas.”
— Minister Xiang, Minister of Finance
KABUL GDLN CENTER:
OFFERINGS IN:
• Health & education
• Public sector management
• Financial management
ACTIVITIES
• Managing public expenditure
• Judicial reform
• E-commerce, e-government
• Hospital management
• Indigenous profiles
• Municipal management
• Intellectual property rights
• Agricultural technology and productivity
• Child protection
• Citizen participation in national policy dialogue
• Anti-corruption and transparency
• Disaster management
PART 2
THE CONTEXT: GLOBAL NETWORK
• Multi-point: multi-way real-time video communications
between multiple DLCs
VIDEO-CONFERENCING
• Point-to-point: two-way real-time video
communications between two DLCs
• Broadcast: one-way video communications between central
site and multiple sites ( Webcast )
NETWORK DESIGN PRINCIPLES
• Automated capacity distribution between services
• Full independence from local infrastructure
• Dynamic satellite resources allocation
• Dynamic Internet 2 resource allocation
• Simple upgrade and re-engineering
IP VIDEO
• Room based videoconferencing systems
• H.323 based videoconferencing
• 256Kbit/s per call
• G.711 for audio (64Kbits/s)
• H.261 for video (~180 Kbit/s)
DL CENTERS INFRASTRUCTURE
SYNCHRONOUS ROOM
…..……………..1…………………………………………..30 1 ………......…. 30
7206Router
ASYNCHRONOUS ROOM
FIRE WALL
COMM HUB
PresentationServer
TEACHING CENTER
PBX
DATA, VOICE & VIDEOSatelliteStation
DATA, VOICE & VIDEOSatelliteStation
3745Router
T.120Server
H.323/H.320 Video Bridge
H.323 VideoCodex
PBX
ProductionStudio
COMM HUB
T.120Server
H.323 VideoCodex
LMSServer
PCPCPCPC
LMSServer
(Dedicated Links)PAMA
(Virtual DAMA Links)DAMA
HEADQUARTERS
(Virtual DAMA Voice, Video and Data IP Channels)IP Over Asymmetrical SCPC
• INTELSAT’S DAMA• NORTEL-DASA TDM/TDMA/FR
FO FO FO FOFO
FO
FOFODLCFO
FOFO
HEADQUARTERS
HEADQUARTERS
GDLN GLOBAL NETWORK EVOLUTION STRATEGY
UNIVERSITY NETWORK DLC
INTERNET
ISDN
DLC
45Mbps
OPTIONS
INTERNET LEASED NETEORK LINES
WB GDLN
NREN(NATIONAL RESEARCH AND
EDUCATION NETWORKS)
384/512Kbps/per GDLN Center
I2 ISDNNETWORK
256Kbps/per GDLN Center
GDLN
CENTER GDLN
CENTER .....
GDLN
CENTER GDLN
CENTER .....
GDLN
CENTER GDLN
CENTER ..... GDLN
CENTER GDLN
CENTER .....
OPTIONS COMPARITION
SERVICE SUPPORT
QUALITY AVAILABILITY COSTS ISSUES
PRIVATE NETWORK LINES
multimedia excellent high high logistics
ISDN NETWORK video very good medium very high standardization
INTERNET data good high low Intergrated IP solutions
I2 multimedia superb very low low? slow emerging
MULTIMEDIA MULTIPLEXING SOLUTION
INTERNET ONE PROTOCOL - IPv4
INTERNET TWO PROTOCOL - IPv6
SERVICE SUPPORTOriginally Designed for Data
OnlyDesigned for Multimedia
Applications
ADDRESSING SPACE 32-bit Addresses 128-bit Addresses
ADDRESS SUPPORT cca 4 billion addresses cca 340 trillion addresses
SECURITY SOLUTIONSecurity Solution s Applications Based
Built-in Security Solution
QUALITY OF SERVICE (QoS)
Only Implemented on dedicated Routes
Built-in QoS
STATUS existing Slowly Emerging
INTRA- COUNTRY INTERNET 2 SOLUTION
IN-COUNTRY IP BASED INFRASTRUCTURE
SYNCHRONOUS ROOM
…..……………..1…………………………………………..30 1 ………......…. 30
7206Router
ASYNCHRONOUS ROOM
FIRE WALL
COMM HUB
PresentationServer
TEACHING CENTER
PBX
DATA, VOICE & VIDEONREN
DATA, VOICE & VIDEOLocalMCU
3745Router
T.120Server
H.323/H.320 Video Bridge
H.323 VideoCodex
PBX
ProductionStudio
COMM HUB
T.120Server
H.323 VideoCodex
WEBCTServer
PCPCPCPC
WWBB
WBMCU WWmm
mmmm
WASH DCMCUHUB
INTERNETINTERNET
TDLCMCU
IP BENEFITS
• Single communications platform for multimedia
• Low operation and management costs
• Low communications equipment complexity (only router)
• Easy integration with in country networks
• GDLN is the first world-wide Global Network fully IP based
• Videoconferencing ready
• State-of-art Technology and International Standards
• Fully connected to and compatible with Internet1 and Internet2
• Flexible interface to clients
• Flexible for upgrade and grow
• Network is designed based on the traffic-flow pattern
• Providing services to GDLN’s business partners
• Broadcasting, Web streaming and content archiving• 24x7 technical and operational support
FACTS
LO
WH
IGH
AVAILABLE
Local Reliable Internet (IP)
Cus
tom
er D
eman
d fo
r DLC
Ser
vice
s
Costa RicaGuatemalaChilePeruColombiaEcuadorHondurasMexicoNicaraguaIndiaPhilippines
Turkey (2)LithuaniaRussia (2)PolandSwitzerlandSpainIndia (2)KoreaSingaporeUkraineEgypt
Mozambique AfghanistanSri LankaDom. RepublicSenegalBeninEthiopiaCote D’IvoireBoliviaTanzaniaGhanaUganda ThailandJordanSaudi Arabia (2)Australia
coming …MauritaniaMaliKenya
China (3) MongoliaBrazil (3) BelgiumVietnam FranceE. Timor
Independently DLCs In Network Purchasing partnership pay Intelsat's and MCI direct.Always connected to WB NetworkFixed Network Cost becauseNo local ISDN or IP alternativeLow Customer Demand
Find ways to increase andsustain high
Demand over Internet 2China, Indonesia, Australia, Eastern European,
Latin America.
Find local reliableISDN &
internet providers
AVAILABLE
DLCs co-located with WB CO’s VC Rides on local IP through WB Network.At marginal cost of WB network trafficInternet access locally provided (security)
Independently DLCs Use local ISDN as needed To Plug into GDLN Network Pay market rate for ISDN
Independently DLCsIncreased in country networkIncreased reliance on Internet More and broader content offerings
12 3
4
DEMAND VS. OFFERING