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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 1
THE CONTEXT: DEVELOPMENT LEARNING
back in the year 1997
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.
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
today 2007 - not just any knowledge
World Bank President Zoellick in his “100-day speech” …
“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.“
relevant
applied
just-in-time
multiple networks, 100+ centers, ±500 PoPs?
ECA
WBI
ISG
EAP
MNA
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
• Agricultural technology and productivity
Judicial reform
• Child protection
E-commerce, e-government
Hospital management
Indigenous profiles
Municipal management
Intellectual property rights
• Citizen participation in national policy
dialogue
• Anti-corruption and transparency
• Disaster management
PART 2
THE CONTEXT: GLOBAL NETWORK
VIDEO-CONFERENCING
• Point-to-point: two-way real-time video
communications between two DLCs
• Multi-point: multi-way real-time video communications
between multiple DLCs
• Broadcast: one-way video communications between central
site and multiple sites ( Webcast )
NETWORK DESIGN PRINCIPLES
• Full independence from local infrastructure
• Dynamic satellite resources allocation
• Dynamic Internet 2 resource allocation
• Automated capacity distribution between services
• 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
ASYNCHRONOUS ROOM
1…………………………………………..30
1 ………......…. 30
PC
Satellite
Station
DATA, VOICE & VIDEO
……………..
Satellite
Station
PC
…..
PC
3745
Router
COMM
HUB
PBX
DATA, VOICE & VIDEO
PC
7206
Router
H.323 Video
Codex
LMS
Server
T.120
Server
TEACHING CENTER
H.323/H.320
Video Bridge
H.323 Video
Codex
T.120
Server
COMM
HUB
LMS
Server
PBX
FIRE WALL
Presentation
Server
Production
Studio
GDLN GLOBAL NETWORK EVOLUTION STRATEGY
PAMA
IP Over Asymmetrical SCPC
DAMA
(Dedicated Links)
(Virtual DAMA Links)
(Virtual DAMA Voice, Video and Data IP Channels)
DLC
FO
FO
FO
FO
FO
FO
FO
FO
ISDN
HEADQUARTERS
HEADQUARTERS
HEADQUARTERS
FO
FO
FO
• INTELSAT’S DAMA
• NORTEL-DASA TDM/TDMA/FR
DLC
INTERNET
UNIVERSITY NETWORK
DLC
OPTIONS
WB GDLN
45Mbps
I2
INTERNET
NREN
(NATIONAL RESEARCH AND
EDUCATION NETWORKS)
GDLN
CENTER
.....
384/512Kbps/per GDLN Center
GDLN
CENTER
GDLN
CENTER
.....
256Kbps/per GDLN Center
LEASED
NETEORK LINES
GDLN
GDLN
CENTER
CENTER
.....
ISDN
NETWORK
GDLN
CENTER
GDLN
CENTER
.....
GDLN
CENTER
OPTIONS COMPARITION
SERVICE
SUPPORT
QUALITY
AVAILABILITY
COSTS
ISSUES
multimedia
excellent
high
high
logistics
ISDN NETWORK
video
very good
medium
very high
standardization
INTERNET
data
good
high
low
Intergrated IP solutions
multimedia
superb
very low
low?
slow emerging
PRIVATE
NETWORK
LINES
I2
INTRA- COUNTRY INTERNET 2 SOLUTION
MULTIMEDIA MULTIPLEXING SOLUTION
INTERNET ONE PROTOCOL IPv4
INTERNET TWO PROTOCOL IPv6
Originally Designed for Data
Only
Designed for Multimedia
Applications
ADDRESSING SPACE
32-bit Addresses
128-bit Addresses
ADDRESS SUPPORT
cca 4 billion addresses
cca 340 trillion addresses
SECURITY SOLUTION
Security Solution s
Applications Based
Built-in Security Solution
QUALITY OF SERVICE
(QoS)
Only Implemented on
dedicated Routes
Built-in QoS
existing
Slowly Emerging
SERVICE SUPPORT
STATUS
IN-COUNTRY IP BASED INFRASTRUCTURE
SYNCHRONOUS ROOM
ASYNCHRONOUS ROOM
1…………………………………………..30
1 ………......…. 30
PC
NREN
DATA, VOICE & VIDEO
……………..
H.323 Video
Codex
COMM
HUB
H.323/H.320
Video Bridge
H.323 Video
Codex
T.120
Server
PBX
FIRE WALL
WASH DC
mWMCU
m HUB
m
PC
WEBCT
Server
T.120
Server
7206
Router
TDLC
MCU
WB
…..
COMM
HUB
TEACHING CENTER
DATA, VOICE & VIDEO
INTERNET
WMCU
B
PC
3745
Router
PBX
Local
MCU
PC
Presentation
Server
Production
Studio
IP BENEFITS
• Single communications platform for multimedia
• Low communications equipment complexity (only router)
• Low operation and management costs
• Easy integration with in country networks
FACTS
• 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
DEMAND VS. OFFERING
LOW
HIGH
Customer Demand for DLC Services
Independently DLCs Use local ISDN as needed To
Plug into GDLN Network Pay market rate for ISDN
Costa Rica
Guatemala
Chile
Peru
Colombia
Ecuador
Honduras
Mexico
Nicaragua
India
Philippines
Turkey (2)
Lithuania
Russia (2)
Poland
Switzerland
Spain
India (2)
Korea
Singapore
Ukraine
Egypt
China (3)
Brazil (3)
Vietnam
E. Timor
Find local reliable
ISDN &
internet providers
Mongolia
Belgium
France
2 3
1 4
Mozambique
Afghanistan
Sri Lanka
Dom. Republic
Senegal
Benin
Ethiopia
Cote D’Ivoire
Bolivia
Tanzania
Ghana
Uganda
Thailand
Jordan
Saudi Arabia (2)
Australia
Independently DLCs In Network
Purchasing partnership pay Intelsat's
and MCI direct.
Always connected to WB Network
Fixed Network Cost because
No local ISDN or IP alternative
Low Customer Demand
coming …
Mauritania
Mali
Kenya
Find ways to
increase and
sustain high
Demand over Internet 2
China, Indonesia, Australia, Eastern European,
Latin America.
DLCs co-located with WB CO’s VC Rides on
local IP through WB Network.
At marginal cost of WB network traffic
Internet access locally provided (security)
AVAILABLE
Local Reliable Internet (IP)
Independently DLCs
Increased in country network
Increased reliance on Internet
More and broader content offerings
AVAILABLE