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H.323 Video Conferencing H.323 Video Conferencing

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  • 1. Ulrich Schwenn (RZG) H.323 Videoconferencing H.323 Video Conferencing EFDA Remote Participation Training & Workshop KFKI Budapest, HungaryMay 2004Dr. Ulrich Schwenn, Kewin Stckigt {schwenn|kfs}@rzg.mpg.de Multimedia & Videoconferencing Grouphttp://www.rzg.mpg.de/vc Computing Center Garching (RZG),Max-Planck-Gesellschaft (MPG) &Max-Planck-Institut fr Plasmaphysik (IPP) 03/11/2003Budapest, RP-Training & Workshop May 20041

2. Ulrich Schwenn (RZG) H.323 Videoconferencing Outline of Talk Psychology, Ergonomics & Acceptance of VC-Services ITU Standards H.320 / H.323- Links GDS, ENUM(Kewin Stckigt) DFN Verein GWiN - VC Service - DFNVC Experiences - Outsourcing- IPP Local Rooms- IPP GWiN GANT NIIF - EFDA Scenarios & Rooms Traversing H.323 audio/video through firewalls (Kewin) Statistics - IPP What Else? Future of H.323Acknowledgements 03/11/2003 Budapest, RP-Training & Workshop May 2004 2 3. Ulrich Schwenn (RZG) H.323 Videoconferencing Psychology, Ergonomics &Acceptance of VC-Services3. What is "Multimedia Conferencing"? (IMTC Definition) Multimedia conferencing revolutionizes vital, everyday tasks such ascorporate management, training and communication betweengeographically-dispersed teams. This technology enables interactive, livesharing of audio, video and desktop applications during a conferencesession. Multiple users participating from geographically distant locationscan collaborate on an application and share visual information while they discuss a project together. Internet voice and video and PSTN videoincrease productivity and reduce travel time and cost, while offering a personal mode of communication. Applications are wide-ranging and include investor relations, telemedicine, distance learning, technical designreviews, and other collaborative activities. http://www.imtc.org/faq/#3 03/11/2003Budapest, RP-Training & Workshop May 2004 3 4. Ulrich Schwenn (RZG) H.323 Videoconferencing ITU Umbrella standards NEW or important: IP H.264 same video quality H.264 at bandwidth H.235H.264Tandberg & Polycom (mostly proprietory)G.722H.239 H.450 H.235 Encryption DES/AES (no problem for IPP, working with all Tandbergs) ISDN H.239 Presentation sharing DuoVideo Tandberg H.264 People & Content PolycomH.264Sony G.722 H.239 G.722 Audio with 7 KHz H.450 H.450 Directories (Kewin)03/11/2003Budapest, RP-Training & Workshop May 2004 4 5. Ulrich Schwenn (RZG) H.323 VideoconferencingITU Standards / Links http://commons.internet2.edu/http://www.videnet.gatech.edu/cookbook.en/list_toc.phphttp://www.teamsolutions.co.uk/video.htmlhttp://www.videnet.gatech.edu/cookbook.en/list_page.php?topic=6&url=best-prac.htmlhttp://www.vidkonf.niif.hu/protdoc/videokonf_okt_20031217.pdfhttp://www.rzg.mpg.de/vc/docshttp://www.imtc.org/events/Forum_2004/2004ForumAgenda.dochttp://www.imtc.org/faq/#3 03/11/2003Budapest, RP-Training & Workshop May 2004 5 6. Ulrich Schwenn (RZG) H.323 VideoconferencingDFNVC & IPP Infrastructurehttp://www.vc.dfn.dehttp://www.rzg.mpg.de/vc IPP ProxyDMZ GNU Open H.323GK MPG mcu6 MVP 0049 383488 1xxx 0049 893299 6xxxMCU-60 V3.2 MVP ...... ...... for MPGGreifswaldGarching0049107IPP H.323 Infrastructure Usable by EFDAH.323 Clients03/11/2003Budapest, RP-Training & Workshop May 2004 6 7. Ulrich Schwenn (RZG) H.323 Videoconferencing ViDeNet & GDSH.323 dialing on the public internetEFDA Remote Participation Training & Workshop KFKI Budapest, HungaryMay 2004Kewin Stckigt Multimedia & Videoconferencing GroupComputing Center Garching (RZG), Currently Auckland, New Zealand ksto033@ec.auckland.ac.nz03/11/2003Budapest, RP-Training & Workshop May 2004 7 8. Ulrich Schwenn (RZG) H.323 VideoconferencingOutline of talk ViDe GDS Global Dialing Scheme How does it work? Who is responsible? Dialing examples 03/11/2003 Budapest, RP-Training & Workshop May 2004 8 9. Ulrich Schwenn (RZG) H.323 VideoconferencingViDe ViDe stands for Video Development Initiative Hosted at University of North Carolina at Chapel Hill (UNC) ViDe belongs to the Internet2 initiative Was founded by several representatives of universities and educational networks ViDe wants to deploy digital audio and video in research and higher education Numerous workgroups doing active research in different areas, e.g. data collaboration, streaming, etc.03/11/2003 Budapest, RP-Training & Workshop May 2004 9 10. Ulrich Schwenn (RZG) H.323 VideoconferencingViDe Virtual network, based on the H.323 standard Network consists of several zones (more about zones later) ViDe comprised several autonomously managed H.323 gatekeeper around the world Management of IP traffic Get your personal videonumber (E.164) Allows interaction with MCU (multipoint conference units;needed if more than 2 systems want to communicate witheach other)03/11/2003Budapest, RP-Training & Workshop May 2004 10 11. Ulrich Schwenn (RZG) H.323 VideoconferencingGDS Global Dialing Scheme GDS is a numbering plan for videoconferencing systems, MCU conferences, gateways and other audio/video communication related systems GDS is similar to the telephone numbering scheme IAC (International access code): 00 CC (country code): e.g. 36 for Hungary, 49 for Germany,etc. OP (Organization prefix): e.g. 200 for KFKI, 893299 forIPP Garching EN (Endpoint number): e.g. 2011 for P. Giese, 6004 for U.Schwenn An E.164 number (~ GDS number) consist of 03/11/2003 Budapest, RP-Training & Workshop May 2004 11 12. Ulrich Schwenn (RZG) H.323 Videoconferencing GDS Global Dialing Scheme GDS uses a hierarchy of gatekeeper Each gatekeeper represents one zone A Zone is a pool ofvideoconferencing systems,belonging to one Organizationprefix It does not matter, ifvideoconferencing systemsare on the same network; theycan be widespread 03/11/2003Budapest, RP-Training & Workshop May 200412 13. Ulrich Schwenn (RZG) H.323 VideoconferencingGDS Global Dialing Scheme Several research network provider, like NIIF, DFN, etc. host country gatekeeper who represent the country code (CC) Those CGKs are connected to the world gatekeeper, owned by the Welsh Video Network, University of Wales, Ireland 03/11/2003Budapest, RP-Training & Workshop May 200413 14. Ulrich Schwenn (RZG) H.323 Videoconferencing GDS Global Dialing SchemeWorld Gatekeeper, 00CGK Hungary, 36 CGK Germany, 49CGK USA, 1 CGK KFKI Gatekeeper, 200IPP Gatekeeper, 893299DFN Gatekeeper, 711 UNC Gatekeeper, 129VC system P. Giese, 2011 VC system U. Schwenn, 6004 VC system T. Johnson, 71004 VC system K. Stoeckigt, 6006 03/11/2003Budapest, RP-Training & Workshop May 2004 14 15. Ulrich Schwenn (RZG) H.323 VideoconferencingGDS Global Dialing Scheme P. Giese U. Schwenn: 00498932996004World Gatekeeper, 00CGK Hungary, 36CGK Germany, 49 CGK USA, 1 CGK KFKI Gatekeeper, 200 IPP Gatekeeper, 893299DFN Gatekeeper, 711VC system P. Giese, 2011VC system U. Schwenn, 6004VC system K. Stoeckigt, 6006 03/11/2003 Budapest, RP-Training & Workshop May 200415 16. Ulrich Schwenn (RZG) H.323 VideoconferencingGDS Global Dialing Scheme K. Stoeckigt T. Johnson: 00112971004World Gatekeeper, 00 CGK Hungary, 36 CGK Germany, 49 CGK USA, 1 CGK KFKI Gatekeeper, 200IPP Gatekeeper, 893299 DFN Gatekeeper, 711 UNC Gatekeeper, 129 VC system P. Giese, 2011VC system U. Schwenn, 6004 VC system T. Johnson, 71004 VC system K. Stoeckigt, 6006 03/11/2003Budapest, RP-Training & Workshop May 2004 16 17. Ulrich Schwenn (RZG) H.323 VideoconferencingGDS Global Dialing Scheme U. Schwenn K. Stoeckigt: 00498932996006 World Gatekeeper, 00CGK Hungary, 36 CGK Germany, 49 CGK USA, 1 CGK KFKI Gatekeeper, 200 IPP Gatekeeper, 893299DFN Gatekeeper, 711 UNC Gatekeeper, 129VC system P. Giese, 2011VC system U. Schwenn, 6004 VC system T. Johnson, 71004VC system K. Stoeckigt, 6006 03/11/2003Budapest, RP-Training & Workshop May 2004 17 18. Ulrich Schwenn (RZG) H.323 VideoconferencingViDe & GDS ViDe http://www.vide.net http://videnet.unc.edu GDS http://www.wvn.ac.uk/support/h323address.htm http://www.rzg.mpg.de/vc/index.php http://www.vidkonf.niif.hu/index.php 03/11/2003Budapest, RP-Training & Workshop May 200418 19. Ulrich Schwenn (RZG) H.323 VideoconferencingHomogeneous MPG Scenarios BMS - Section Meetings on -Financing / PersonnellTTTT TResearch Policy / ProgramTRobust solution TT T recommandations TDFNVC T TTidentical Clients >15TT T T Tandberg 1000 (now) T TT T TT TTSW / HW SupportTT outsourced (MVC)DFNVC GatekeeperT & first level SupportTT T Project BAR / MPGT7 Systems at central locations DFNVCTT TPresident Tandberg 880 (now) TT TTTTAdministrative (incl. Displays&control)T Headquarters03/11/2003 Budapest, RP-Training & Workshop May 2004 19 20. Ulrich Schwenn (RZG) H.323 VideoconferencingHomogeneous HGF VC ScenarioHGF - Programm-TTTTManagementT TTTTTTHGF-VC Taskforce (KODA)T TDFNVC (10/2003)TT TRecommendations PTT Clients (Tandberg 880) SW / HW Outsourcing T DFNVC Service PT Tests Summer 2003, Feedback:T DFNVC, MVC, Radvision TTTTDFNVCT PPolycom T Tandberg2004 03/11/2003Budapest, RP-Training & Workshop May 200420 21. Ulrich Schwenn (RZG) H.323 VideoconferencingIPP Videoconferencing T880T500T6000T500T500 MS Greifswald 10 VVDFNVCDFNVCT6000 3 T880 T6000MST500MS Garching 2 T1000 15 VV Tests 2x VSX 7000, PCS-1 03/11/2003Budapest, RP-Training & Workshop May 200421 22. Ulrich Schwenn (RZG) H.323 VideoconferencingH.323 Statistics IPPDesktops~25 ViaVideo, 2 Tandberg 1000 - positive> 10 connections / client / weekVNC in regular use - positive Meeting/Seminar rooms 7 Tandberg 500/880 - positive~10% H.320up to 15 point-to-point / room / w - positive~ 2 multipoint (3-5) / room / w- positiveVNC in regular use - positiveLecture Halls 3 Tandberg 6000 (MS) (H. 323), DuoVideo~10% H.320~ 5 point-to-point / w, 120 min - positive~ 1-2 multipoint / w- positiveNetMeeting, VNC in regular use - positive2 IP interrupts (

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