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The Singapore Advanced Research & Education Network

The Singapore Advanced Research & Education Network. SingAREN and Singapore MIT Alliance. National University of Singapore. Nanyang Technological University. Kent Ridge Digital Labs. Funded by :. National Science & Technology Board. Infocomm Development Authority of Singapore.

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The Singapore Advanced Research & Education Network

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  1. The Singapore Advanced Research & Education Network

  2. SingAREN and Singapore MIT Alliance

  3. National University of Singapore Nanyang Technological University Kent Ridge Digital Labs Funded by : National Science & Technology Board Infocomm Development Authority of Singapore Driven by :

  4. Overall Network Configuration • SingAREN now has a PoP in Los Angeles to aggregate all its US traffic • US local connections to StarTAP & Abilene upgraded to 45 Mbps & 155 Mbps respectively • PoP provides control over the amount and type of in-bound traffic entering SingAREN’s 14Mbps international link

  5. Features Update • Current multicast peers • vBNS, StarTAP, APAN (Japan & Korea), SurfNet & NUS • Selective multicast streams to conserve bandwidth • IPv6 peers • Native : 6TAP, 6BONE, APAN (Japan & Korea) & NTRC (NTU) • Tunneled : Merit, UUNET, AMS-IX, Deutche Telekoms • Rudimentary “Quality-of-Service” is provided • SingAREN’s 14M link to US is partitioned into different bandwidths • Each partition carries different grades of traffic • Currently, traffic is being graded as either premium or normal

  6. Distance LearningSingapore-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 • Expand to 5 programs totalling about 100 hours/week in August 2001

  7. Application Sharing via Internet 2 MIT Auditorium ISDN Audio / Video Conferencing Internet 2 Student access via web for revision Online digitization onto video server NUS Auditorium / SMART Classroom Video Server View video SMA DE - Configuration

  8. SMA DE Connectivity NUS Classroom OC-3 NUS Gateway SingAREN* GigaPoP 14 Mbps ILC MIT Classroom Abilene MIT Gateway LA PoP 155 Mbps

  9. SMA DE Connectivity (cont.) 137.132.2.98 NUS SingNet 137.132.4.2 NUS One Arm Router R SingAREN (Ayer Rajah) 202.8.94.1 202.8.94.50 Firewall CC1ATM GW R 137.132.2.3 NUS R 178.18.163.66 NUS 137.132.21.134 NUS PT210 NUS MIT Layer 3 Route Internet II Abilene R MIT 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

  10. 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

  11. SMA DE – Lessons Learnt • Synchronous teaching/learning: • A challenge to maintain Line of Presence in large classroom • Sustained audio quality a challenge (noise & breakups) • Single screen mode demands higher video resolution • Delay in camera tracking system poses problems for Q&A sessions – improvements using push-to-talk system • Secondary communication channels for inter-team session monitoring to ensure rapid problem resolution

  12. SMA DE – Lessons Learnt (cont) • Pedagogical Issues: • Faculty needs to understand technical limitations • Adaptation required • Conducting an effective Q&A session is challenging • Backup connectivity activation disrupts flow of lessons • Support Issues: • Requires well understood inter-team operational protocols • Inter-technical team building essential • Core technical staff available on mobile/beepers • 1-man operation highly risky • Replicated services in local helpdesk a necessity for quality service

  13. www.singaren.net.sg Tel: +65-7796692

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