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H'323

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Title: H'323


1
H.323 Global Deployment Insights from the
Internet2/RE Community
Mary Fran Yafchakmaryfran_at_sura.org IT Program
Coordinator, SURACo-chair, Internet2 Digital
Video GroupMember, LSVNP Steering Committee
ViDe
2
Whats all this I2 and RE?
  • Internet2, led by over 170 U.S. universities
    working in partnership with industry and
    government, is developing and deploying advanced
    network applications and technologies,
    accelerating the creation of tomorrow's
    Internet.
  • http//www.internet2.edu

3
Not Your Typical IP Customer
  • The Internet2/RE community
  • Has infinite IP bandwidth
  • Operates as a multi-platform, multi-user,
    transitional user environment
  • Gave birth to the public Internet and is intent
    on advancing global IP communication
  • Has the capability and the need to push
    technology design and development

4
The Simple Act of Communication
5
A Global Communication System
  • Must provide
  • Scalability of Services
  • scaleable to all inhabitants of the Earth -
    Tyler Johnson, CAVNER/ViDe
  • Support for incremental deployment
  • Authentication by User, not Device
  • Support for User Mobility
  • Growth in accordance with an Internet mindset,
    not a Telco mindset

6
Investigating H.323 for RE
  • ViDeNet
  • http//www.vide.net/videnet
  • A project of ViDe
  • LSVNP (Large Scale Video Network Prototype)
  • http//www.cavner.org/lsvnp
  • An overlay on ViDeNet

7
Who is ViDe?
  • CANARIE (Canada)
  • College of William and Mary
  • George Washington University
  • Georgia Institute of Technology
  • North Carolina State University
  • NYSERNet (New York State Research Education
    Network)
  • Ohio State University
  • University of Alabama at Birmingham
  • University of Hawaii
  • University of North Carolina, Chapel Hill
  • University of South Carolina
  • University of Tennessee
  • Vanderbilt University
  • Yale University

8
What is ViDe?
http//www.vide.net
  • The goal of The Video Development Initiative
    (ViDe) is to promote the deployment of digital
    video in higher education

by leveraging collective resources and expertise
towards addressing challenges to deployment
poor interoperability, volatile standards and
high cost.
9
What is ViDeNet?
http//www.vide.net/videnet
a testbed and model network in which to develop
and promote ViDe's goals for highly scalable and
robust networked video technologies.
...serves as a forum for discussion and an
experimental testbed for ideas related to
improving the state of inter-networked video and
voice over IP architectures.
...quickly evolving into a global virtual
network interconnecting advanced voice and video
networks around the world.
10
ViDeNet Goals
  • Bring video/voice over IP to every human being
    on the planet
  • Enable and support distributed control
  • Reduce/eliminate the need for PSTN services
  • Serve as a production testbed for the
    development of video voice over IP technologies
    and best practices

11
Current ViDeNet Sites
  • American University in Cairo
  • Aristotle University of Thessaloniki
  • CINECA
  • The College of William Mary
  • Columbia University
  • ESnet
  • HEAnet
  • Internet2
  • LSVNP
  • MCNC
  • Natonal Sun Yat-Sen University
  • Natl Technical University of Athens
  • NC State University
  • NYSERnet
  • Ohio State University
  • OARNet
  • OneNet
  • Penn State
  • Proctor Gamble
  • RADVision
  • SURFnet
  • University of Akron -Wayne College
  • University of Hawaii
  • University of New Brunswick
  • UNC, Chapel Hill
  • University of Pennsylvania
  • University of South Carolina
  • University of Tennessee
  • Virginia Commonwealth University
  • Wright State University
  • Yale University

12
Current Equipment Set
  • H.323 Gatekeeper (required) - With desired level
    of intra- and inter-domain control
  • RADVision, Cisco, others?
  • H.323 Clients (required) - The more, the
    merrier - Interoperability very important
  • Intel ProShare 500, VCON Escort25, Escort 75 Pro,
    Falcon, MC8000, ViGo, Zydacron Z340 Z360,
    Polycom Viewstation ViaVideo, VTEL P3/Galaxy
    SmartStation/H.323, Seimens IP Phone, Sorenson
    Envision, PictureTel LiveLAN, Microsoft
    NetMeeting??, others?
  • MCU (optional) - Enables multi-point conferences
  • RADVision, Accord, Ezenia(Videoserver), others?
  • Gateway(s) (optional) - Enables communication
    with other popular communication types, e.g.
    H.320, Voice, H.321
  • RADVision H.323/320, Cisco/VoIP,
    Ezenia(Videoserver) H.323/H.320, others?

13
Current Target Areas
  • Inter-zone gatekeeper communication
  • A Model for Internet-extensible H.323
    Communications The ViDeNet Reference Gatekeeper
    Model http//www.cavner.org/cavner_info/wp.html
  • Extensible dialing plan (on and off the Net)
  • http//www.cavner.org/cavner_info/wp.html
  • Increase cross-organizational communication
  • Additional work with vendor/developers
  • Experimental Production

14
Current Target Areas
  • Inter-zone gatekeeper communication
  • A Model for Internet-extensible H.323
    Communications The ViDeNet Reference Gatekeeper
    Model http//www.cavner.org/cavner_info/wp.html
  • Extensible dialing plan (on and off the Net)
  • http//www.cavner.org/cavner_info/wp.html
  • Increase cross-organizational communication
  • Additional work with vendor/developers
  • Experimental Production

15
What is LSVNP?
http//www.cavner.org/lsvnp
An advanced networking project investigating and
deploying a model architecture for video-IP
services
  • LSVNP is managed for ViDe by
  • The University of Tennessee
  • The Georgia Institute of Technology
  • NYSERNet
  • The University of North Carolina at Chapel Hill

Sponsored by SURA BBN/GTE Internetworking
16
Summary of LSVNP
  • A focused project investigation overlaid on
    ViDeNet
  • Provides a highly managed set of H.323 services
    to a targeted group of users
  • 160 users in 15 diverse projects
  • Seeks to define a model for full video-IP
    conferencing service deployment

17
LSVNP Projects
  • Middle America Earthquake Center - Researcher
    collaboration at UIUC
  • National Center for Early Development and
    Learning - Research on childhood development at
    UNC-Chapel Hill
  • Virtual Design Studio - Architectural Design at
    Georgia Institute of Technology
  • Louisiana Statewide Research Network - Video
    collaboration at LA Board of Regents
  • Virtual Rounds - Veterinary medicine clinical
    support at University of Tennessee, Knoxville
  • SCUPSONet - Economic development, assisted by
    UNC-Chapel Hill
  • University of Alabama - Statewide medical school
    collaboration, UA at Birmingham
  • PEPNET - Univ. of Tennessee Center on Deafness
  • Marine Sciences - Interconnection of laboratory
    and teaching facilities, UNC-Chapel Hill
  • Public Health - Provision of services to rural
    public health facilities, through UNC-Chapel Hill
  • Social Work - Teaching and training over the
    Internet, UNC-Chapel Hill
  • Virginia Educational Alliance - Assisting K12
    teachers with technology in the classroom
  • Vanderbilt University - Engineering collaboration
  • Emergency Telemedicine - University at Buffalo,
    emergency medicine in Western New York
  • Speech Language Pathology - Teaching and
    diagnosis at New York University

18
LSVNP Web Site
19
LSVNP Logical Configuration
20
LSVNP - Early Findings I
  • Equipment selection purchase, project
    integration, timing - significant milestones!
  • Most support required for initial client
    installation and training on LSVNP service
    conventions
  • Second-most support required for use of fickle
    semi-interoperable clients - but improving!
  • Back-end services (GK, MCU) are generally the
    most reliable part

21
LSVNP - Early Findings II
  • Firewalls H.323 - not a pretty sight!
  • Call aspect most in need of improvement Data
    collaboration application sharing
  • Still waiting for that Internet-extensible
    gatekeeper...
  • H.323 at/around 384K works over commodity
    Internet as well as Internet2 - (O.K., not
    predictably)

22
Not So Simple After All?
  • Client application issues
  • Gatekeeper issues
  • Going Global issues
  • Human issues

23
Not So Simple After All?
  • Client Application Issues
  • Client/Platform Choice
  • Data collaboration doesnt mean Net Meeting
  • Functionality sells! Voice mail, call hold, call
    forward, call transfer, caller ID...
  • Dont decide for the network (no bandwidth
    restrictions!) but work with network services
    (e.g., QoS, whatever it may become)

24
Not So Simple After All?
  • Gatekeeper Issues
  • More robust implementations (improved operating
    systems, processes as system services or daemons)
  • Expected Internet server-like security (remote
    access, usage/error logging, CERT-ifiable see
    http//www.cert.org
  • DNS-aware (gatekeeper-to-gatekeeper
    communication, alphanumeric naming, e.g.,
    user_at_gatekeeper.domain)
  • Anticipate/support need for shared (inter-zone)
    services
  • Improvements in user account management (external
    vs. internal user lookup, concept of groups)
  • Not be everything, work with everything (Name
    server, Policy broker, Directory server)

25
Not So Simple After All?
  • Going Global Issues
  • Tight integration with Voice-over-IP...It just
    makes sense.
  • Prepare to join the Grid - User authentication
    vs. device authentication, multi-user
    authentication on multi-user systems
  • Communication with global directory servers as
    they evolve
  • Communication with network policy servers as they
    evolve
  • Definition of H.323 metadata type for Web
    integration
  • Gateways, gateways, gatewaysfor the foreseeable
    future

26
The Truth of Implementation
27
The Truth of Implementation
28
The Truth of Implementation
29
The Truth of Implementation
30
The Truth of Implementation
Time passes Human appetite prevails...
31
The Truth of Implementation
Time passes Human appetite prevails...
32
Questions or Comments?
  • maryfran_at_sura.org
  • US 315-593-0718
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