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DFNVC - A Videoconferencing Service for the German Network for Research and Education “DFN”

DFNVC - A Videoconferencing Service for the German Network for Research and Education “DFN”. Status report - April 2004. G. Maiss, K. Schauerhammer, R. Schroeder, K. Ullmann - DFN Germany. Contents. DFN VideoConference (DFNVC) Service Components Service Features and Advanced Features

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DFNVC - A Videoconferencing Service for the German Network for Research and Education “DFN”

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  1. DFNVC - A Videoconferencing Service for the German Network for Research and Education “DFN” Status report - April 2004 G. Maiss, K. Schauerhammer, R. Schroeder, K. Ullmann - DFN Germany

  2. Contents • DFNVideoConference (DFNVC) • Service Components • Service Features and Advanced Features • Statistics • Further Plannings

  3. DFNVC: Service Components (I) • Same equipment in two locations (Berlin and Stuttgart) • MCUs: • Premium Equipment: • per location 2 Radvision MCU-60/G.722 with TCM 30 Audio Transcoder Board -> 240 Ports • per location 2 Radvision MVP 30 Video Boards • Standard Equipment: • per location 1 Radvision MCU-100 -> 200 Ports • Gatekeeper, Gateways and DCS • per location 1 Gatekeeper Radvision ECS 2.0 • per location 1 Gatekeeper GNU-GK 2.0.2 • per location 1 Radvision Gateway gw-P20 • per location 1 Radvision Data Collaboration System

  4. DFNVC: Service Components (II) Redundant service components in Berlin und Stuttgart

  5. DFNVC: Service Features • The service : • allows ad hoc conferences • offers Dial-In for ISDN-based VC systems • provides a Global Dialing Scheme • supports preparation,initiation and management of conferences • provides test results and descriptions for VC systems • offers training coursesfor administrators and hotline

  6. DFNVC: Video Competence Center • VCC TU Dresden (Video Competence Center) • responsible for VC systems • ongoing tests of VC systems (new releases) • descriptions and instructions for installation and configuration for the most common VC systems • interoperability matrix of VC systems and other VC components

  7. Compatibilityof VC Systems Quality: Good, reliable good, unreliable no function sufficient, reliable sufficient, unreliable unsufficient, reliable unsufficient, unreliable

  8. DFNVC: Advanced Services • Observing the quality of network (LAN and access lines): • Performance measurement on IP connection: • packet loss, one way delay, jitter • tests with a measurement system of the University of Erlangen • H.323 Beacon • tests with special organisations • Prioritisation of IP-Adresses • tests with special organisations

  9. Statistics (I) • Participants in the production service • contracts signed with 157 organisations and institutes • ongoing negotiations with further organisations • nearly 50% with own gatekeeper • 17 training courses since April 2002 with 10-15 participants per course

  10. Statistics (II) • 78 Gatekeeper registered, thereof among others 35 GNU-GK, 15 Cisco MCM, 6 Radvision, 5 VCON MXM, 2 Ezenia • 340 devices registered with the DFN-GK, thereof among others 65 Netmeeting, 6 Sony, 48 Tandberg, 4 SunForum, 39 VCON Vigo, 4 VCON Falcon IP, 35 Polycom Viewstation, 3 VTEL Smartstation, 35 Polycom Via Video, 3 PictureTel/iPower, 18 VCON Escort/Cruiser, 3 Intel ProShare 13 GnomeMeeting/ohphone, (only DFN-GK!!!)

  11. Statistics (III)

  12. DFNVC: Further Plannings • Migration to E.164 / DNS / ENUM • Service administration via LDAP (H.350) • Locking VC portal against unauthorized users • Integration of new functions (e.g. SIP based signalisation, VoIP-structure) • Reservation system

  13. DFNVC: Links • VC service description http://www.dfn.de/service/dfnvc/ • VC portal http://www.vc.dfn.de/ • Videoconference Cookbook http://vcc.urz.tu-dresden.de/ (German only) • Procurement of VC systems and gatekeeper: VCC Dresden (Video Conference Center) http://vcc.urz.tu-dresden.de/vc-systeme/

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