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

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

3. 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. 4 DFNVC: Service Components (II) Redundant service components in Berlin und Stuttgart

5. 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 courses for administrators and hotline

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9. 9 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

10. 10 Compatibility of VC Systems Quality: Good, reliable good, unreliable no function sufficient, reliable sufficient, unreliable unsufficient, reliable unsufficient, unreliable

11. 11 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

12. 12 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

13. 13 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!!!) Statistics (II)

14. 14 Statistics (III)

15. 15 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

16. 16 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/