1 / 13

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.

haroldhopkins
Télécharger la présentation

The Singapore Advanced Research & Education Network

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related