bzvd tasks user poll purpose mcu tests h.323 matrix accessories address book information to do links...
TRANSCRIPT
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
BZVD
Dresden University of TechnologyComputer CentreSupport Centre for Video Conference Services (BZVD)
Video Conferences in the German Research Network
TERENA Networking Conference 2001 ‘Highlighting Advanced Networks and Services‘Antalya, Turkey14 - 17 May 2001
Wolfgang WünschChristoph Fleck
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
BZVD
Dresden University of TechnologyComputer CentreSupport Centre for Video Conference Services (BZVD)
Zellescher Weg 1201062 Dresden
Tel.: (0049)-0351-463-5653Fax: (0049)-0351-463-7116Video: video.urz.tu-dresden.de
(0049)-0351-463-8688
E-Mail: [email protected]: http://bzvd.urz.tu-dresden.de
Project Manager: Dipl.-Ing. Wolfgang WünschStaff: Dipl.-Inform. Undine Grohmann
Dipl.-Ing. Christoph FleckDipl.-Ing. Detlef MakowitzDipl.-Inform. Frank Schulze
Students: Reinhard Förster, Thomas UhleAndré Schulze, Tino Schinnerling
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
Tasks of BZVD
The BZVD asa service centre
of DFN
Education
User consulting
Maintenance of local network & equipment
Providing video conferences(as a service)
Application searches& tests
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
User Poll
Frequency: Up to 15 conferences per monthAverage duration: Up to 1 hourMain technology: MBone, H.323
30% short-term
October 1999
Use of Video Conferencing
13% not planned
57% already used
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
Purpose of BZVD
• Support of the DFN community with planning, installation and use of video conference services
• Video conferencing as a regular service in the WiN
• Co-operation with other projects of the DFN
• Knowledge transfer between local partners in the WiN
• Efforts and benefits synergy effects
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
User Consulting and Demonstrations
Introduction to standard users:
• Opportunities and limitations of video conferencing• Hardware and software look-and-feel• Recommendation: H.323 or MBone tools
Users with special demands:
• Help on selecting hardware and software• Supporting with first steps• H.323 and MBone tools and others• ATM, ISDN (H.320), gateway solutions
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
Providing Video Conferences
Support for users with our equipment:• during usage mobile BZVD communication equipment
(e.g. broadcasts of conferences / meetings)• Provide a stationary video conferencing room for groups
Usage:
• Ohio State University, Columbus
• Demonstration for TIB e.V. (Technology & Innovations Consulting for Employees, Hamburg)
• Tests in co-operation with the Max Planck Society
• etc.
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
Network of Competence
Partners Network of local competences in the WiN
• Contacts with app. 20 organisations and institutions
• 8 different computer centres in Niedersachsen and 6 other research institutions in Germany
• Deutscher Wetterdienst, Virtuelles Theater Bochum, Europa Universität Frankfurt/Oder and other
• (With single institutions at the moment, no network yet)
• contacts are presently rather bilateral, not yet interlinked
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
MCU Service of DFN
Application scenarios:• Directors, managers• Scientists
Demands:• Reliable and unbureaucratic management of the MCU• Reservation tool for the MCU with direct users access• Video quality: at least 384 kbps• Audio quality: G.722• T.120 for application sharing• Continuous presence: display of the last 4-5 participants• Display of names of the participants of a conference • Reliable service, hotline, FAQs• Automation of the service: directory, configuration, billing, monitoring, gatekeeper (centralised / distributed)
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
MCU Service of DFN
Development tasks
DFN• Provision of a reservation system• Installation of components• Installation of a monitoring system• Installation of a service administration• Recommendations for end systems / clients
User• Installation of a gatekeeper (if necessary an MCU)
Time schedulingStart piloting in summer 2001 with restricted functionality (lack of reservation system) and limited number of users
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
Tests of H.323 Devices
Purpose: MCU services by DFN in WiN
Terminals: end devices
Polyspan: Viewstation 128, Viewstation 512, ViaVideoSony: Contact 1600Tandberg: 1000 VCON: Escort 25, Crusier 384, MC 8000, Falcon IP, ViGO ProIntel: Proshare 500, TeamStationElsa Vision II, NetMeeting 3.01, SunForum 3.1 & 3.0
MCUs: multi control unit for group conferences
FVC: Click To MeetACCORD: MGC 100RADVision: MCU-323ezenia!: encounter 1000 NetServer
reliable, in active development, no further development, instable
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
Tests of H.323 MCUs
MCUs: multipoint control units for H.323
FVC: Click To Meet
ACCORD: MGC 100
RADVision: MCU-323
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
Tests of H.323 MCU‘s
FVC: Click To Meet (Demo Version)• Usage and registeration is done by the members
• Closed groups with up to 15 users, small conferences with 4 users
• Scheduled or ad-hoc Conferences, browser-based
ACCORD: MGC 100• Administrator permanently needed, registration of users required
• Large, closed groups, large conferences possible
• Administrator starts conference
• Unique functions: video splitting modes, speed matching
RADVision: MCU-323• Usage by users themselves, no registration required
• Medium-sized of conferences
• Conferences start with dialing from terminal
• Audio problems with NetMeeting
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
Results of Tests
• Group conferences with more than 4 terminals: difficult
• Every participant with bad audio equipment cause disturbances
• Video coding without special hardware is not optimal
• Video display on TV - best solution, but expensive
• Compatibility issues between certain H.323 devices
• Gatekeeper is part of the system concept for the WiN
• Quality of G-WiN satisfies the needs
• Local problems occur sometimes
• MCU: highest requirements in the network
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
Compatibility Matrix for H.323
[2] http://bzvd.urz.tu-dresden.de/vc-systeme/matrix/
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
Accessories
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
Video Conference Address Book
• List of video conference users
• Users create and change entries individually
• Listing of the entries is generally accessible
[3] http://bzvd.urz.tu-dresden.de/adressen/adr.php
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
Information of BZVD
Information available in German only [1]:
• Audio / video: signals, connectors, codings
• Room equipment and design
• Video conference hardware & software:• Chosen products, own tests
• Long list of manufacturers, distributors, services
• MBone software archives
• Poster: audio, video, MBone [4]
• MBone Manual
• PC hardware: audio / video cards
• Notebook for video conferences
English translation of unique information upon request (compatibility matrix)
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
To Do
• H.323 over Firewall
• Gatekeeper
• QoS
BZVD
Tasks
User Poll
Purpose
MCU
Tests
H.323 Matrix
Accessories
Address Book
Information
To Do
Links
Video Conferences in the German Research Network TNC 2001 16 May 2001
Links[1] http://bzvd.urz.tu-dresden.de/
[2] http://bzvd.urz.tu-dresden.de/vc-systeme/matrix/
[3] http://bzvd.urz.tu-dresden.de/adressen/adr.php
[4] ftp://ftp-mm.urz.tu-dresden.de/ pub/dokumentationen/allgemein/audio-video-mbone_poster.pdf