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Feb 22nd 2002 Infrastructure requirements for distance education Keiko Okawa WIDE Project.
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Transcript of Feb 22nd 2002 Infrastructure requirements for distance education Keiko Okawa WIDE Project.
Feb 22nd 2002
Infrastructure requirements for distance education
Keiko Okawa
WIDE Project
Pacific Rim Networking – February 22nd, 2002
Agenda
• WIDE distance education activity as a sample
• Today’s difficulties
• Requirements for Network
Pacific Rim Networking – February 22nd, 2002
WIDE SOI
• School of Internet Working Group in WIDE Project since 1997
• Mission– Share and preserve the valuable educational resources
on the Internet– Technology Deployment
• In between “researchers” and “users”.• demonstrate the social value of the technology.
– Internet Deployment• Internet, as a vehicle of “Global Educational Environment”.• Implement it wherever needed.
Pacific Rim Networking – February 22nd, 2002
SOI Current Activities
• SOI Class– Supporting the remote participation to the educational
activities from anywhere, anytime.
• SOI Global Classroom– Expanding the classroom all over the world
• SOI Global Studio– Shared facility among educational institutes for inviting
guest speakers
• SOI ASIA– SOI Global Classroom in Asia
Pacific Rim Networking – February 22nd, 2002
SOI Class
• Systems– SOI for individual learners– SOI remote participation class – on-demand clas– multimedia learning resource– Assignment System– Course Survey System– Transcript System– Copyright System– SOI CA and My SOI– Faculty Support
• Technology– Web and database– Streaming– Multimedia Synchronization– Digital Signature and Certificate authority
Pacific Rim Networking – February 22nd, 2002
SOI Class
• What– 1112 hours of IT related lectures.
– 43 courses by 20 universities
– 83 special lectures and tutorials.
Pacific Rim Networking – February 22nd, 2002
SOI Global Classroom
• Global class– Joint class
• Students in Multiple sites• Teachers in Multiple sites
– Shared class• Students in Multiple sites
– Remote lecture• Teachers in remote site
• Technology– IPv6– Multicast– DVTS (Digital Video over IP)– High speed Internet infrastructure (JGN, Internet 2 etc)– Remote presentation tools
Pacific Rim Networking – February 22nd, 2002
SOI Asia
• Mission– Human resource development in Asia with “SOI Global Class”
using SOI educational resource.
• Challenge– Deployment of Internet, Internet culture and learning
environment with Internet
• Technology– Satellite Internet over C-band (AI3)– RO satellite and UDLR technology (UDLR)– Multicast technology– Multicast streaming– IPv6
Pacific Rim Networking – February 22nd, 2002
Daily activities
• Domestic multipoint shared classes 3 times / week– bi-directional DVTS/IPv6/Multicast
• International multipoint shared classes weekly– Japan and US– Japan and Asian countries
Pacific Rim Networking – February 22nd, 2002
The InternetThe Internet
Learn through your local mirror server
Giving LecturesFrom Japanese Universities
Taking Lectures atYour Institutions
LANLAN
SOI Mirror Server
SOI Asia
Pacific Rim Networking – February 22nd, 2002
IF Coaxial Cable
UDLR Receiver
LAN
JCSAT-3 C-Band C-7 transponder
L-Band (950 - 1450MHz)
Terrestrial Internet
AC power supply
SOI Server
Provided by SOI Asia Project
Prepared by Institution
SOI Asia Site Configuration
SOI Clients
Receive Router
CampusLAN
CampusLAN
Pacific Rim Networking – February 22nd, 2002
Site Setup StatusMyanmar
ThailandLaos
Pacific Rim Networking – February 22nd, 2002
Remote Lecture
3 professors @ San Diego Super Computer Center
Students @ 3 universities in JapanNAIST
U-Tokyo
SFC
Pacific Rim Networking – February 22nd, 2002
SOI Global Studio Sessions
Studio@Palo Alto, CA
Studio@Maryland
KEIO University, SFC
Pacific Rim Networking – February 22nd, 2002
Today’s difficulties
• Unknown end-to-end throughput– For design phase– Daily condition– Assured ?
• Multicast problems – Equipments are not fully ready– High bandwidth is not fully supported– Global operation is not ready
• IPv6 tunneling problems– Routing in the tunnel is unknown
• Information about the Network problems– Where to contact ?– How serious ?– Timezone differences makes it harder
• Schedule Conflicting– Shared mechanism of limited resources
Pacific Rim Networking – February 22nd, 2002
Requirements
• Native IPv6 Ready– Capable constant bi-directional high bandwidth traffic
• Multicast Ready– Stable equipments– Global Operation– High bandwidth
• End-to-End Global stable operation– throughput estimation – Trouble estimation and shooting– Information Sharing
• Information Sharing among group– to support growing classes– global scheduling– reservation mechanism
Pacific Rim Networking – February 22nd, 2002
Thank you