Instructions to Execute H.323.


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Internet2 Video Conferencing Service. Applications in the ... H.323 Video Conferencing ... Feature conferencing saw as present best cooperative environment ...
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The most effective method to Implement H.323 Presented at the Joint Techs Workshop 28 - 31 January 2001 University of Hawaii, Honolulu, HA By Larry Amiot (NWU/I2) and Tyler Miller Johnson (UNC)

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Today\'s Agenda Video Conferencing Environment H.323 Video Conferencing Basics ITU Standard Addressing and Zone Management H.323 Deployment Internet2 Video Conferencing Service Applications in the Educational Environment

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Video Conferencing Environment

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Digital Video In The Educational Environment Classroom presentations-requirement for video cuts Colloquiums-need to telecast on the system Homework Assignments-Video-based reference material Collaborative classes-requirement for remote association between class members Committee gatherings requirement for remote connection between members Informal coordinated effort requirement for remote cooperation between partners Conference presentations-requirement for remote communication amongst moderators and group of onlookers

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Parts of the Puzzle Web-based Virtual Classroom Collaborative Tools Application sharing White load up Chat window Video Conferencing Real-time Streamed Video Archived Video

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Video Conferencing Alternatives ISDN-based H.320 (Legacy) Internet-based Access Grid http://www-fp.mcs.anl.gov/fl/accessgrid/Virtual Room Videoconferencing System (VRVS) http://vrvs.cern.ch/MPEG2 Multicast H.323

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H.323 Video Conferencing H.323 Video Conferencing is turning out to be broadly utilized as a part of the instructive environment. Staff gatherings Working Group gatherings Collaborations Interactive classes Conference tracks

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ViDeNet: A Business Case ViDeNet is one flow model for arrangement Voice-Over-IP incorporation driving the business case Research applications driving video executions

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H.323 Video Conferencing Basics ITU Standard Addressing and Zone Management

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H.323 Standard Umbrella arrangement of guidelines characterizing constant sight and sound interchanges and conferencing over parcel based systems International Telecommunications Union (ITU) concluded Version 1 in 1996 Version 2 endorsed January 1998 Part of the family H.32x norms

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H.323 Standard Version 2 included Security (H.235) Authentication/Authorization Integrity Privacy Non-Repudiation Fast call setup T.120/H.323 joining Supplementary administrations Call exchange Call redirection

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H.323 Standard H.323 Components Terminals (Clients) Gateways GateKeepers Multipoint Control Units (MCU\'s)

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H.323 Standard H.323 standard spreads Voice-required Video-discretionary Data-discretionary

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GateKeeper MCU H.323 Real Video Web Browser H.323 Video Conferencing INTERNET H.323 Clients

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Pieces of H.323 Audio Codecs G.711 (required), G.722, G.723, G.728, G.729 Video Codecs H.261 (required), H.263 Data Sharing T.120, T.125 Annex A (multicast) Call Control H.245

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H.323 Protocol Stack A/V Control Data Audio Video Control G.7XX H.26X RTCP RAS H.225 (Q.931) H.245 T.120 RTP TCP UDP IP

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H.323 Standard Gatekeeper required capacities Address interpretation Admissions control Bandwidth control Zone administration Optional capacities Call control flagging Call approval Bandwidth administration Call administration

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H.323 Zone Gatekeeper (expert control) Multipoint Control Unit (MCU) Gateway Endpoints

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Addressing H.323 Concepts Three intraZone Dialing Modes By IP address – not prescribed By Alias ( trjohns1 or tyler@netcall1.unc.edu ) By Extension (226.6101) Interzone Dialing "Neighbor" tables – ebb and flow ViDeNet hone Automatic Destination Zone Resolution Peer to peer Hierarchical

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0 (168 245 929) 226.6101 Extension Zone Prefix Exit Zone Prefix Addressing Interfacing to the PSTN Gatekeeper EndPoint 226.6101 +1 (919) 226.6101 Gateway PSTN IP Network

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And Directory Services MetaDirectory LDAP ViDeNet Peer to Peer Gatekeepers

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H.323 Standard Gateways are discretionary components of H.323 that speak with: PSTN simple terminals H.320 terminals by means of ISDN systems H.321 terminals over ATM H.324 terminals over PSTN systems Other

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MCU H.323 Video Conferencing H.320 ISDN GateKeeper Gateway H.323 Real Video INTERNET Web Browser H.323 Clients

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H.323 Deployment

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100% POTS Video H.450 Fancy Services Voice Unified Messaging RELIABILITY DEPLOYMENT H.235 Security NT Gatekeeper Unix Gatekeeper Ethernet Power USB Desktops Cable TV Over IP H.323 Phones VC Appliances Rack Mount CODECs Wireless H.323 LDAP Gatekeeper PCI Desktops Cell H.323 0% 1998 1999 2000 2001 2002 2003 2004 2005 H.323 Deployment Events

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H.323 FABRIC Conference Room Appliance Performance: Very Good Price: $2500 - $8000 Desktop Video Performance: Fair to Good Price: $500 - $1000 Teleclass Codec Performance: Excellent Price: $10,000 IP Phone Performance: Excellent Price: $150 - $500 Wireless IP Phone Performance: Very Good Price: $250 - $600 Soft Phone Performance: Fair Price: $0 - $50 Fax/Modem Appliance Performance: Good Price: $150 - $500 Choose Your Connection

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Endpoints H.323 FABRIC Gatekeeper Cluster Management Server (Directory Services) Embedded, Distributed, Load Balancing NT/Unix/VxWorks Unix Win2000 Cluster Gateway Farm Embedded, Distributed, Load Balancing NT/Unix/VxWorks Messaging Servers Services MCU Farm PSTN Trunks Embedded, Distributed, Load Balancing NT/Unix/VxWorks In The Zone

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Gatekeepers RADVision NGK-100/200 RADVision implanted watchman RADVision ECM/ViaIP400 *beta Cisco MCM MCUs RADVision MCU-323 RADVision ViaIP 400 stage, 100-port *beta Accord (counting h.321 entryway) Siemens LP5100 - IP phone ($400) Gateways RADVision L2W-323 RADVision VIU Endpoints Polycom VS4000 - discrete codec ($10,000) Polycom ViewStation - meeting room in a case ($4000) VCON ViGo Standard - desktop/tablet USB arrangement ($550) VCON ViGo PRO - desktop/portable workstation USB arrangement/Speaker, 2Mbps, & multicast support ($1199) Polycom ViaVideo - desktop/tablet USB arrangement ($400) Siemens LP5100 - IP phone ($400) Popular Equipment

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Audio & Video Streams (N*2*384Kbps) MCU H.323 Video Conferencing Bandwidth Requirements

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Staffing for H.323 Offering H.323 Services Requires Account Management \'Free-love\' zones Explicitly characterized clients Systems Administration Directory Services Monitoring 7x24 Web Documentation Training Initial Client Installation Purchasing Assistance and Consultation Help Desk

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ViDeNet Participants 50 and checking … Texas A&M University of Akron - Wayne College University of Alabama University of Colorado at Denver University of Hawaii University of Illinois at Chicago University of Illinois at Urbana-Champaign University of Missouri at Kansas City University of New Brunswick (Canada) University of North Carolina University of Pennsylvania University of South Carolina University of Tennessee University of Virginia Commonwealth University Wright State University (Ohio) Yale University (Connecticut) American University in Cairo (Egypt) Aristotle University of Thessaloniki (Greece) Beijing Institute of Technology (China) Canarie (Canada) CiCV (France) CINECA (Italy) The College of William and Mary (Virginia) Columbia University (New York) ESnet (US Nuclear Laboratories) The Georgia Institute of Technology HEAnet (Ireland) IIUCC (Israel) Indiana University Internet2 Louisiana State University MCNC (North Carolina) Mississippi State University National Sun Yat-Sen University (Taiwan) National Technical University of Athens North Carolina State University NYSERnet (New York) OARNet (Ohio) Ohio State University Oklahoma State University OneNet (Oklahoma) Pennsylvania State University Procter and Gamble (Ohio) RADVision (Tel Aviv) SURFnet (the Netherlands) Tel Hai College (Israel)

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Internet2 Video Conferencing Service

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Collaborative Video Conferencing Services over Internet2 Initiative Provide an administration that is expected to empower coordinated, one-to-gathering, and gathering to-gathering collective conferencing in backing of individual correspondence, gatherings, meetings, and shared instruction for Internet2 individuals (essential and supported) and their global partners.

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Basic Tenets of Service Independent of geographic or national limits Video conferencing saw as ebb and flow best collective environment Gateways between innovations will be important Gateways must be straightforward to end clients Need to consider voice/telephony reconciliation

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Key Technical Issues A Global Dialing Plan A Global Directory Service A Scheduling Mechanism for the utilization of shared assets Improvements and coordination in "back room" usefulness and control Interoperability with other huge correspondence administrations (entryways)

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Key Technical Issues (Continued) QoS Multicast H.235 Security Authentication/Authorization Integrity Privacy Non-Repudiation

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White Paper Developers Service Implementation Team Funding Task Force Operations Task Force Research & Development Task Force Outreach & Communication Task Force Collaborative Video Conferencing Services over Internet2 I2DV Steering Committee I2DV-VC Sub-Committee Implementation Plan Development Team

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Proposed Prototype Service Focus on sending not inquire about Start with single innovation Recommended that that model administration be founded on H.323 innovation Based on contributed assets Based on appropriated administration Based on circulated frameworks Emphasis on Gateways (incorporated if fundamental)

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Applications in the Educational Environment By Dr. Robert Dixon, Ohio State University

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H.323 Examples Megaconference1 Fall 1999 Internet2 meeting Over 50 destinations from everywhere throughout the world 384Kbps Cascaded MCUs Megaconference2 www

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