Experiences and Technology Trends in Remote Learning Ngoh Lek Heng - - PowerPoint PPT Presentation

Experiences and Technology Trends in Remote Learning

Ngoh Lek Heng PhD SingAREN Exco & Research Manager, Institute for Infocomm Research, A*Star

Outline

Development in Worldwide Advanced Network Infrastructure SingAREN Remote Learning Experience Technology Trend in Remote Learning Q&A

R&E Network I nfrastructure

Research and Education Networks

A separate non-commercial global network infrastructure Deployed and managed independently by the R&E community, often non-profit Advanced Capabilities

Broadband (up to gigabits per-second) Quality of Service Guaranteed Multicast capability Multimedia capable Testbed for new applications (e.g. remote learning)

Collaborate through local, regional and international forums and working groups

GÉANT Backbone Topology July 2002

7 Dec, 1999

CA*net 4 Architecture

Calgary Regina Winnipeg Ottawa Montreal Toronto

• St. John’s

Fredericton Charlottetown Chicago Seattle New York Halifax

CANARIE Optical switches CANARIE GigaPOP ORAN DWDM Carrier DWDM

Thunder Bay

CA*net 4 node Possible future CA*net 4 node

Quebec Windsor Edmonton Saskatoon Victoria Vancouver Sudbury

APAN MAP with Proposed Clusters

Southeast Cluster (MY, SG, TH,…) North America (Internet 2) (CA *net) Exchange Point Access Point Current status

2003 (planned) Australia

• Korea

Japan Thailand Malaysia Singapore Indonesia USA Vietnam

• Sri Lanka

North Cluster (CN, JP, KR, …) Europe (Geant) Oceania Cluster (AU,…)

• Taiwan

China Hong Kong Philippines Russia

South Asia West Asia

Central Asia

Current Network Topology

The The SingAREN SingAREN network network Infrastructure comprises: Infrastructure comprises: (1) dedicated direct (1) dedicated direct international links to international links to APAN APAN-

• Korea and the

Korea and the Abilene network, and Abilene network, and (2) local connections to (2) local connections to research and education research and education entities via a broadband entities via a broadband network. network.

Current Network Topology

The The SingAREN SingAREN network network Infrastructure comprises: Infrastructure comprises: (1) dedicated direct (1) dedicated direct international links to international links to APAN APAN-

• Korea and the

Korea and the Abilene network, and Abilene network, and (2) local connections to (2) local connections to research and education research and education entities via a broadband entities via a broadband network. network.

Seattle POP Peers at Seattle Internet Exchange Internet Peers at PAIX Singapore POP Temasek Polytechnic NTU, SMU, NYP, SP NUS I2R BII, IMCB, INSEAD Local Internet Korea Malaysia

IPLC (OC3 POS) GE OC3 POS FE GE ATM (6Mbps VBR-nrt) ATM ATM GE Leased Circuit ATM

Japan

via JCSat3 Satellite via MeaSat2 Satellite

Peers at PNWG

GE

Network Configuration

Peering Partner (SIX, PAIX and PNWG) Internet via NTT/Verio Internet 2

Cisco 12404 Cisco 12404

SingAREN Network

Connected via ATM:

• Nanyang Technological University
• Singapore Management University
• Singapore Polytechnic
• Temasek Polytechnic
• Nanyang Polytechnic

Connected via Leased Line:

• Bioinformatics Institute (BII)
• Intitute of Molecular and Cell Biology (IMCB)
• Republic Polytechnic

Korea

Cisco 7507 OC3 POS GE OC3 POS FE & GE OC3 ATM

Seattle POP

Connected via GE:

• National University of Singapore

Singapore POP

6Mbps (ATM vbr-nrt) SingAREN International Link

• SingAREN operates 2 PoPs – Singapore PoP & Seattle PoP
• Seattle PoP aggregate and control traffic entering SingAREN’s international link
• In Seattle SingAREN Connected to :
• Internet 2 via Abilene (GE Connection)
• Internet via NTT/Verio (OC3-POS Connection)
• Other Peering Partner (Such as SIX using GE, PAIX using FE and PNWG using GE)
• Singapore-to-US international link via OC3 POS (155 Mbps) [effective May 2003]
• Singapore-to-APAN(Korea) link at 6 Mbps ATM VBR-nrt. [effective Jan 2003]

SingAREN Peering Arrangements

Architecture:

Peer PVC routers Layer 3 via BGP4

Domestic peering:

Tertiary institutions, including NUS, NTU, SMU, TP, etc. Research centres, including I2R, IMCB, BII etc.

International peering:

US - Abilene (upgraded to 155 Mbps in May 03) Korea & Europe – TEIN (upgraded to 6 Mbps in January 03) Malaysia – (via Satellite link between TP & USM) Asia-Pacific – APAN (6 Mbps)

Overseas R&E Peers

Americas

• CANARIE (Canada)
• CRNet (Costa Rica)
• CUDI (Mexico)
• Abilene (USA)
• REUNA (Chile)
• RETINA (Argentina)
• RNP, FAPESP/ANSP (Brazil)
• SENACYT (Panama)
• STARTAP (USA)

Asia-Pacific

• AAIREP (Australia)
• APAN (Asia-Pacific)
• APAN-KR (Korea)
• APRU (Asia-Pacific)
• CERNET, CSTNET, NSFCNET (China)
• JAIRC (Japan)
• JUCC (Hong Kong)
• NECTEC/UNINET (Thailand)
• TAnet2 (Taiwan)

Europe / Middle East

• ARNES (Slovenia)
• BELNET (Belgium)
• CARNET (Croatia)
• CESnet (Czech Republic)
• DANTE (Europe)
• DFN-Verein (Germany)
• GIP RENATER (France)
• GRNET (Greece)
• HEAnet (Ireland)
• HUNGARNET (Hungary)
• GARR (Italy)
• Israel-IUCC (Israel)
• NORDUnet (Nordic Countries)
• POL-34 (Poland)
• RCTS (Portugal)
• RedIRIS (Spain)
• RESTENA (Luxembourg)
• Stiching SURF (Netherlands)
• SWITCH (Switzerland)
• TERENA (Europe)
• Super Janet (United Kingdom)

Distance Education

S’pore-Canada Distance Learning Demo Telmin3 June 1998

Stanford Stanford-

• NUS

NUS-

• KTH Distance Learning Project

KTH Distance Learning Project Global Project Coordination Course ( Global Project Coordination Course (IE 264) Jointly Conducted by the Three Universities Jointly Conducted by the Three Universities

SingAREN SingAREN makes makes Distanace Distanace Learning a Reality Learning a Reality ! !

vBNS

Distance Learning Singapore-MIT Alliance (SMA) Program

A very selective Master/Ph.D. joint program Involves National University of Singapore (NUS), Nanyang Technological University (NTU) & MIT Launched in July 1999 Students undergoes initial orientation in Singapore, then 1 month in MIT followed by continuation of program in Singapore. Students earn single degree with indigenous registered institution 3 programs totaling about 67.5 conferencing hours/week Expanded to 5 programs totaling about 100 hours/week in August 2001

SMA DE Connectivity (cont.)

CC1ATM GW CC1ATM GW

Firewall

R R R R

137.132.2.98 NUS 178.18.163.66 NUS SingAREN (Ayer Rajah) 202.8.94.1 202.8.94.50

MIT

137.132.4.2 NUS One Arm Router 137.132.2.3 NUS 137.132.21.134 NUS PT210

MIT

SingNet Internet II

NUS MIT Layer 3 Route

Abilene Abilene

SingAREN (LA PoP) 202.8.94.94 198.32.8.17 198.32.8.2 198.32.8.14 198.32.8.6 198.32.8.26 198.32.8.39 18.39.0.145 MIT PT210 192.5.89.101 192.5.89.10 18.168.0.14

SMA DE Connectivity

NUS Classroom

NUS Gateway SingAREN* GigaPoP LA PoP MIT Gateway

90 Mbps ILC OC-3

155 Mbps

MIT Classroom Abilene

SMA DE - Configuration

Student access via web for revision NUS Auditorium / NUS Auditorium / SMART Classroom SMART Classroom Online digitization

• nto video

server Video Server Video Server

MIT MIT Auditorium Auditorium

Internet 2 Internet 2

Audio / Video Conferencing Audio / Video Conferencing

Application Sharing via Internet 2 Application Sharing via Internet 2 ISDN ISDN View video View video

SMA DE – Distance Counseling

Primary instructor works with remote assistants Multiple platforms:

Email Discussion forum Desktop conferencing Chat rooms

Lecturers equipped with Distance Education kits:

Desktop conferencing Scanner Writing tablet mouse

Students have access to desktop multimedia conferencing stations

APRU Special Presidents’ Meeting

The APRU Special President Meeting brought together 30 universities sites in the Asia-Pacific Region in Real-Time

Technology Trends

Ubiquitous Learning Community

Good on-line resources and materials Greater choice on how and when learning is delivered Improved interactivity with teachers and peers Access appropriate levels of administrative, educational and technical support on-line Emergence of new learning models with workflow analysis

VASP – E-Learning, E-L-NTU E-L-ISS E-L-NUS E-L-SP Access Networks – Telco, Broadband Cable, Hotspots, … Portals – V.Conf-StarHub V.Conf.SingTel

IM, SMS, Mails … Administrative Digital library

Service Creation, Composition & Delivery

Service-based Remote Learning

Remote Learning Service Platform

Simplifies VASP service mappings from N-to-N to N-to-1 in business collaboration Accelerates service provisioning from months to minutes Improves end user productivity in a key service sector (e.g. e-learning) through composition

Access Grid

The Futures Laboratory Mathematics & Computer Science Division Argonne National Laboratory http://www.accessgrid.org

Access Grid

Address the need for persistent electronic spaces, to build true electronic communities through new modes of collaboration Access Grid node involves up to 20 people per site using “virtual spaces” that support high- end audio/video technology for compelling and productive user experience

Access Grid

AG Community

Is a Virtual Organization!

Virtual Venues

Virtual space, meet people with different client platforms

Users

Have Capabilities Resources (shared or not)

Streaming Media Data Applications

Services (e.g. multi-session, recording, security)

Collaborative Applications

Third party “plug-ins”: shared ppt, web browser etc

Network Services

Data and control interfaces, IP multicast etc.

AG Node Architecture

The Singapore Advanced Research & Education Network

http://www.singaren.net.sg/