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David Collados California Institute of Technology European Organization for Nuclear Research

David Collados California Institute of Technology European Organization for Nuclear Research. October 25, 2001. What Is VRVS?.  Web oriented multipoint videoconferencing system.  Multi-platform system: Windows, Linux, Solaris, Irix and Mac.

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David Collados California Institute of Technology European Organization for Nuclear Research

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  1. David Collados California Institute of Technology European Organization for Nuclear Research October 25, 2001

  2. What Is VRVS? • Web oriented multipoint videoconferencing system. •  Multi-platform system: Windows, Linux, Solaris, Irix and Mac. • The mechanism to interconnect different videoconferencing clients/tools: MBone: VIC, RAT. H.323: Polycom (ViaVideo, ViewStation), Microsoft (NetMeeting), Zydacron (OnWan), SmithMicro (VideoLink Pro), etc. MPEG2: Minerva Networks (VCP).

  3. The Origins Of VRVS •  Born in 1995 at Caltech to provide a low cost system for videoconferencing and remote collaboration over networks for the HEP community. •  ISDN versus IP videoconferences:  High costs for international ISDN videoconf.  Manpower for scheduling and operation of ISDN and IP systems (but not using VRVS.)  IP from any machine.  IP more flexible: different OS and applications.  IP for different multipoint working environments.

  4. About The Site

  5. Structural Layers In VRVS VRVS Web User Interface Others ?? MPEG H.323 Mbone Tools (vic, vat/rat,..) QuickTime 4.0 & 5.0 Collaborative Applications VRVS Reflectors (Unicast/Multicast) QoS Real Time Protocol (RTP/RTCP) Network Layer (TCP-UDP/IP)

  6. Virtual Rooms Concept • Enter a Virtual Room Through Your Nearest Reflector American side European side

  7. Reflectors’ Deployment 1/2

  8. Reflectors’ Deployment 2/2 33 Reflectors Running Around The World. Europe: Switzerland: CERN (2) Spain: IFCA, RedIRIS UK: Rutherford (2), JET, Swansea Israel: Weizmann, Hebrew Univ. Italy: INFN Finland: Funet Poland: Cracow Portugal: LIP Czech Republic: Cesnet Asia: Taiwan: Academia Sinica Japan: KEK South America: Venezuela: CeCalcula Brazil: UFRGS (Univ. Fed. Rio Grande do Sul) North America: Canada: University of Quebec United States: West: Caltech (2), SLAC Midwest: FNAL, ANL (Chicago) East: BNL (New York) Internet2: New York, Ann Arbor (Detroit), Denver, Georgia Tech (Atlanta), Indiana, Orlando, Texas

  9. Steps To Use The System  Have a PC with a full duplex soundcard (a video camera if you want to send video).  Go to http://www.VRVS.org  Register your machine.  Download the latest VRVS package.  Check recommendations before buying additional devices: http://www.VRVS.org/Doc/Hardware/hardware.html  Check your local audio/video setup.  Book a Virtual Room and “Join” it.

  10. Booking A Virtual Room 1/2 • The Scheduler  Booking a Virtual Room is performed in the same way as you would book a local conference room.  If all the Virtual Rooms are booked, it means that the (pre-set) maximum number of parallel conferences has been reached. Select the Virtual Room Select the scope of your videoconference Continental Virtual Rooms World Wide Virtual Rooms

  11. Booking A Virtual Room 2/2 • The Booking Process • Different calendar views: one Year, one Month, or one Day. The user can easily appreciate what is already reserved,and which are the available time slots. • Options  A password can be entered to control the access.  Documents (URLs) can be attached to the conference(or “pop-up” URLs during the conference to the other participants through the chat window.)

  12. Mbone Integration

  13. H.323 Integration

  14. MPEG2* Integration 1/2  Acquisition of Minerva VCP MPEG2 Encoder/Decoder. Very low latency, ~120 ms + supporting RTP (Real Time Protocol.)  MPEG2 integration into VRVS:  Perform bi-directionaland interactiveP2Pcommunications between 2 boxes.  Adapted/modified VRVS reflectors to make MPEG2 multipoint videoconferencing possible among 3 or more sites.  New site to administrate the MPEG2 videoconferences. [*] At present time, VRVS is the only MPEG2 software/system available in the world for MPEG2 multipoint videoconferencing.

  15. MPEG2 Integration 2/2 VRVS MPEG2 Reflectors (Just the video from the current speaker is sent to the MPEG2 clients. The current speaker keeps on receiving video/audio from the previous one.) VCP MPEG2 CODEC LNBL VCP MPEG2 CODEC CERN VCP MPEG2 CODECLLNL VCP MPEG2 CODEC Caltech Instance of MPEG2 topology. Video: 3.0 Mbps Audio: 224 Kbps stereo

  16. Desktop Sharing • VNC (Virtual Network Computer) desktop sharing technology is integrated in VRVS. • Possibility to share the working desktop betweenseveral participants in 2 differentmodes: Broadcast mode: The desktop is seen by all the participants but they cannot control it. Full shared mode: All participants see and can control the shared desktop (mouse, keyboard, … ) • Need the VNC server application running in the machine in order to share your desktop. • On the Client side, No application is needed. A Java applet is downloaded from the Web server. The Client is Web-based and Multi-platform.

  17. At Present Time Moving outside HEP community. To Educational and Research communities: CESNET: Czech National Research & Edu Network EFDA: European Fusion Development Agreement GLAST: Gamma Ray Large Area Space Telescope Internet2 RedIRIS

  18. VRVS Deployment in Internet2 1/3 Internet2 is a U.S. national initiative that regroups more than 180 U.S. Universities in close collaboration with partners (including most of the international research networks.) See at http://www.internet2.edu VRVS has been selected as one of the primary technologies to support as part of the Internet2 Commons initiative (a Large-Scale, Distributed Collaborative Environment for the Research and Education Community.) I2 will provide software and documentation along with leadership in the area of developing gateways among different videoconferencing technologies.

  19. VRVS Deployment in Internet2 2/3 Installation of 7 Reflectors in several GigaPoPs over the Abilene backbone (Summer 2001) Creation and announcement of a new I2 mailing-list for people interested in VRVS related announcements: vrvs-announce@internet2.edu Creation of a second support/help mailing list: vrvs-support@internet2.edu. The goal is to allow experts in the community to help newcomers. Help on VRVS online documentation and packaging.

  20. VRVS Deployment in Internet2 3/3 VRVS REFLECTORS Sept. 2001

  21. AcessGrid Integrationhttp://www.vrvs.org/accessgrid.html See all AccessGrid video See participants list Start the tools (Mbone or H.323) Select the video mode: - Select video - Timer video Enter to a AG Virtual Venue

  22. VRVS Statistics 1/3 • VRVS is currently in widespread production: • At present time, more than 6800 machines used by 4100 users at 50 countries are registered in VRVS. • During 2000 year, 1300 Multipoint Conferenceswere performed (Total 3800 Hours). • More than 3000 point to point connections were established. • Since January 2001: 190 multipoint (600 hours)videoconferences per month have been hold on average.

  23. VRVS Statistics 2/3

  24. VRVS Statistics 3/3

  25. Examples 1/5

  26. Examples 2/5

  27. Examples 3/5

  28. Examples 4/5 • LEPC broadcast from CERN • 35 participants connected to VRVS (ex. QuickTime Player)

  29. Examples 5/5

  30. Questions ? David Collados CALTECH/CERN David.Collados@cern.ch

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