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Internet2 Applications Ben Teitelbaum Texas A&M University Internet2 Day February 7 th, 2005 College Station, Texas.

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Presentation on theme: "Internet2 Applications Ben Teitelbaum Texas A&M University Internet2 Day February 7 th, 2005 College Station, Texas."— Presentation transcript:

1 Internet2 Applications Ben Teitelbaum Texas A&M University Internet2 Day February 7 th, 2005 College Station, Texas

2 Internet2 Applications Texas A&M University Internet2 Day February 7 th, What is an Advanced Application? …used by faculty, staff, and students in support of the research, teaching, learning, and service activities of our members Challenge / motivate advanced networking facilities & capabilities Represent a breakthrough in research, learning, or technology transfer Not initially usable on commodity Internet

3 Internet2 Applications Texas A&M University Internet2 Day February 7 th, How We Do Applications Technology scouting Services and training Outreach to disciplines Bulk transport research Applications-enabling middleware

4 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Technology Scouting Bob Riddle tel:

5 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Collaborative A/V Tools AccessGRID VP (replacement for VIC) VRVS Desktops and now PocketPC too ConfXP Shared applicaions DVTS DV Guide Uncompressed HDTV

6 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Equipment Loaner Pool PC-Based Access Grid Node H.323 MCU Videoconferencing Equipment Delco RTPtv Box VBrick 6200 MPEG-2 Encoder/Decoder Polycom ViewStation FX Cakebox (for Network Performance Measurement)

7 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Internet2 Commons Jonathan Tyman tel:

8 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Internet2 Commons Charter Promote and facilitate remote collaboration by means of innovative and integrated, standards-based Internet technologies Create collaboration services that are... Useful Sustainable Affordable Scalable This slide complements of Jonathan Tyman

9 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Internet2 Commons Accomplishments Launched H.323 Videoconferencing Service Production, subscription-based service Feature-rich; GDS; Firewall traversal Conference streaming and archiving HELP! 24/7 NOC (OARnet/OSU) Quarterly Trainings (100+ site coordinators) Studying Web Collaboration Tools and Extending Service Suite to the Desktop Extensive member interviews Data Collaboration Survey with ViDe Testing VRVS, WebOffice, IMFirst, Wave3 Session This slide complements of Jonathan Tyman

10 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Outreach to Disciplines Arts & Humanities Health Sciences Science and Engineering

11 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Application Communities Progress is driven by those who see ways in which advanced networking technologies can benefit their research communities Internet2 has worked with a variety of communities over time. One way to organize is by our history of interaction with these groups: Mature Developing Nascent

12 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Arts & Humanities Outreach Ann Doyle tel:

13 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Remote Master Classes Michael Tilson Thomas (New World Symphony) photo by R. Andrew Lepley This slide complements of Ann Doyle

14 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Live Performance Events Dance in the Digital Age Case Western University & Cleveland Institute of Music The Bing Theater, University of Southern California, Oct 2002 This slide complements of Ann Doyle

15 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Transcontinental Poetry Reading: A Tribute to Kenneth Koch Live transcontinental reading of Kenneth Koch's "Twenty Poems" Seven Internet2 campuses provided videoconferencing Poet Anne Waldman This slide complements of Ann Doyle

16 Internet2 Applications Texas A&M University Internet2 Day February 7 th, New Communities Museum Community Education Conservation Foreign Language Instruction Less commonly taught languages Archaeology Forum Shared project planning Shared imaging This slide complements of Ann Doyle

17 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Health Sciences Outreach Mike McGill

18 The scope of the Internet2 Health Science Workgroup includes clinical practice, medical and related biological research, education, and medical awareness in the public. This slide complements of Mike McGill

19 Internet2 Applications Texas A&M University Internet2 Day February 7 th, CLINICAL: Why Physicians Participate in Internet2 Extend the provision of better healthcare TeleHealth (eHealth) National Tumor Board Develop Clinical Skills and Assessment (AAMC partnership) Distributed data sharing Electronic Health Record Presence and Integrated Communications (VoIP, location) Advanced visualization Computer Assisted Surgery Computer Aided Diagnosis Collaboration independent of boundaries Geography: Second Opinion Networks/Night Hawking Time: Learning Technology (Distance Education) Computation: Knowledge Management This slide complements of Mike McGill

20 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Biomedical Informatics Research Network (BIRN) Funded by: NCRR/NIH Mark Ellisman, PhD,Univ. California San Diego, SDSC This slide complements of Mike McGill

21 Internet2 Applications Texas A&M University Internet2 Day February 7 th, EACH BRAIN REPRESENTS A LOT OF DATA AND COMPARISONS MUST BE MADE BETWEEN MANY (fMRI) Slide courtesy of Arthur Toga (UCLA) This slide complements of Mike McGill

22 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Pipelines for Morphometric Analysis Surgical Planning Interoperative segmentation Brain atlas fMRI Funded by NCRR/NIH Ron Kikinis, M.D., Steve Pieper, Ph.D., Simon Warfield, Ph.D. Brigham and Womens Hospital, Harvard Medical School Surgical Planning This slide complements of Mike McGill

23 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Science & Engineering Outreach Russ Hobby tel: T. Charles Yun tel:

24 Internet2 Applications Texas A&M University Internet2 Day February 7 th, High Energy and Nuclear Physics Physics has traditionally been a power user Physicists are generating Terabytes of data per experiment at CERN Types of network usage: Bulk data transfers extremely sensitive to loss VRVS expects multicast and low-latency/jitter networks for effective video conferencing This slide complements of T. Charles Yun

25 Internet2 Applications Texas A&M University Internet2 Day February 7 th, E-VLBI (Radio Astronomy) Astronomers observe from multiple earth-based antennae Data sent to specialized computer for analysis on a 24x7 basis VLBI is not as concerned with data loss as they are with long term stability The end goal is to send data at over 1Gb/s from 20+ antennae (located around the globe) to a facility that can process the data in real time. This slide complements of T. Charles Yun

26 Internet2 Applications Texas A&M University Internet2 Day February 7 th, NEON and Earthscope Both in the early stages Research goals understood Working with Internet2 program managers to determine how best to use advanced networks to connect researchers, data, and sensors This slide complements of T. Charles Yun

27 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Bulk Transport Research Stanislav Shalunov

28 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Bulk Transport The killer application for high- performance networks so far What else do we need fat pipes for? Several flavors: straightforward huge file transfer instrument data transfer (telescopes, particle accelerators, etc.) interactive high-throughput applications (e.g., ImmSeg) This slide complements of Stanislav Shalunov

29 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Problem Exists Below Application Remains unsolved even in its most simple form (file transfer) best current practice: open n standard TCP streams, send data typical current practice: n=1 (e.g., FTP, HTTP, or SCP) Expected performance (links are not congested): at least 100Mb/s Typical performance: less than 3Mb/s (Internet2 NetFlow Weekly Reports) This slide complements of Stanislav Shalunov

30 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Top Reasons for Poor Performance Bad transport protocols (layer 4) - Internet2 transport effort Ethernet duplex mismatch (layer 2) NDT and work on characterization of the condition Full-duplex Ethernet is the right thing Even Gigabit Ethernet can still suffer from duplex mismatch Bad last-hop cables (layer 1) Cables Go Bad After Chairs are Rolled Over Them Fix: replace the cable Fortunately, less common than the other problems This slide complements of Stanislav Shalunov

31 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Conventional TCP: Bad Transport 1/2 Theoretical problems: Unstable for high-speed networks Too sensitive to non-congestive packet loss (even after minor fixes) Before a loss happens, buffers need to fill: delay is at least doubled This slide complements of Stanislav Shalunov

32 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Conventional TCP: Bad Transport 2/2 Implementation problems Buffers are laughably small –Normal default buffer sizes: 8kB, 16kB, 32kB, 64kB –Even 64kB over 70ms limits throughput to 7.5Mb/s No provisions for automatic buffer increases –Users are expected to manually tune the buffer size –Cars don't ship with 3-HP engines that need to be tuned by the driver for measly 100HP. Why should computers ship with transport protocols that get 3Mb/s and need to be tuned by the user for measly 100Mb/s? This slide complements of Stanislav Shalunov

33 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Internet2 Transport Effort 1/2 Group of congestion control researchers and high-end users formed in Oct 2004 Goal: a software implementation of user- space transport tool high performance completely end-to-end: no router modifications suitable for both bulk file transfer and interactive multimedia portable, easy to install and use (no kernel modifications) advanced congestion control using existing research tolerance for minor non-congestive packet loss This slide complements of Stanislav Shalunov

34 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Internet2 Transport Effort 2/2 Most immediate deliverable: a design space survey Current version: design-space-05.pdf design-space-05.pdf Specify requirements Document independent design questions Converge on a design Join the mailing list at: https://mail.internet2.edu/wws/arc/transport This slide complements of Stanislav Shalunov

35 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Application-Enabling Middleware Authentication and Authorization Middleware Connective Middleware

36 Internet2 Applications Texas A&M University Internet2 Day February 7 th, What is Shibboleth? Open source attribute-based single sign-on software with an emphasis on user privacy, built on the SAML 1.1 specification A provider and consumer of innovations in federated identity standards An enabling technology for Internet2, international, and regional efforts at federation in education and research This slide complements of Scott Cantor

37 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Shibboleth Use Cases Traditional web single sign-on Shared electronic learning resources Research resources (grids) Outsourced academic or administrative services Account linking across sites Delegated trust in portal scenarios (e.g. meta-searching) This slide complements of Scott Cantor

38 Internet2 Applications Texas A&M University Internet2 Day February 7 th, InCommon A federation for American higher education, initially focused on.edu origins. Builds an open identity infrastructure across higher education for academic and research collaboration, outsourced and governmental services, etc. Expected to serve as a trust anchor for a variety of Internet2 efforts. Low barrier to entry, minimal legalities This slide complements of Scott Cantor

39 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Connective Middleware for Real Time Communications high-performance, end-to-end IP transit BobAlice User Campus UserInternet2/GigaPoP/ASP Campus Host Network-Layer Connectivity Applications APIs Codecs APIs Codecs Signaling Connective Middleware Call Filtering Auth N/Z Call Filtering Auth N/Z Identity Presence Call Routing Identity Presence Call Routing Damping Middleware Rich Presence Services Calendaring Location... Calendaring Location Directories Signaling Campus-to-Campus Trust / Policy / Encryption P2P media and Trust / Policy / Encryption...or... Auxiliary Services Gatewaying Bridging Messaging... Gatewaying Bridging Messaging... Gatewaying Bridging Messaging...

40 Internet2 Applications Texas A&M University Internet2 Day February 7 th, SIP.edu Working Group Web Site Chair Dennis Baron, MIT { , sip}:

41 Internet2 Applications Texas A&M University Internet2 Day February 7 th, SIP Proxy DNS SIP-PBX Gateway PBX INVITE INVITE DNS SRV query sip.udp.bigu.edu telephoneNumber where mail=bob PRI / CAS bigu.edu Campus Directory Bob's Phone sip.udp.bigu.edu IN SRV... SIP.edu Architecture (today) IP Voice TDM Voice SIP User Agent

42 Internet2 Applications Texas A&M University Internet2 Day February 7 th, DNS INVITE DNS SRV query sip.udp.bigu.edu bigu.edu SIP User Agent location DB REGISTER (Contact: ) INVITE SIP Proxy Bob's SIP Phones SIP.edu Architecture (real soon) SIP Registrar IP Voice, Video, IM,... If Bob has registered, ring his SIP UAs; Else, call his extension through the PBX.

43 Internet2 Applications Texas A&M University Internet2 Day February 7 th, SIP.edu Growth

44 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Presence and Integrated Communications (PIC) Working Group Web Site Chair Jeremy George, Yale { , sip}:

45 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Presence and Integrated Communications Presence Notification of events that facilitate communication (Henning Schulzrinne) –On-line, Away, Idle, On phone, Out to lunch,... Back to the future? –Remember: finger, write, who? –Presence restores the sense of community that existed on timesharing systems Forward to the future! –New standards for interoperability and scalability –User-centric control of presence publication –Richer state semantics and automatic triggers

46 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Rich Presence Trials Using Internet2 meetings to prototype advanced campus services Advanced WiFi infrastructure (location service) Advanced middleware infrastructure (SIP/SIMPLE presence agent / location server) Advanced real time communications services Highly-participatory Enthusiastic attendees Distributed trial-dev team –Columbia IRT Lab, HP Labs Cambridge, University of Pennsylvania, Ford Motor Company, Microsoft,...

47 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Rich Presence Enabled Clients WaveThree and Columbia clients (Session, SIPC) Others welcome! (client requirements doc on web)

48 Internet2 Applications Texas A&M University Internet2 Day February 7 th, NG911 Project Internet has been a thorn in the side of VoIP Technically, not a hard problem NG911 NTIA-funded project to IP-enable PSAPs Not only solve VoIP 911, but do better! Higher resilience Faster call setup Testability Based on IETF GEOPRIV work Multimedia support Open standards and COTS Cheaper

49 Internet2 Applications Texas A&M University Internet2 Day February 7 th, Emerging IETF/NENA I3 Architecture GPS 40.86N 73.98E CN=us A1=NJ A2=Bergen INVITE DHCP outbound proxy server provided by local ISP? 40.86N 73.98E: Leonia, NJ fire dept. leonia.nj.us.sos.arpa POLY NAPTR … This slide complements of Henning Schulzrinne, Xiaotao Wu, & the CINEMA crew (Columbia University) Location-based call routing: UA knows its location

50 Internet2 Applications Texas A&M University Internet2 Day February 7 th,


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