Transcript VRVS: Global Platform for Rich Media Conferencing and Collaboration

Global Platform for Rich Media
Conferencing and Collaboration
Gregory DENIS
California Institute of Technology
June 4, 2002
TERENA, Networking Conference
Description
Description of the System
VRVS Status
Next version: presentation of
VRVS 3.0
Future development
Conclusion
June 4, 2002
TERENA, Networking Conference
What is VRVS ?
A software only system providing very scalable
infrastructure for audio, video and web
conferencing over IP networks.
Turnkey software solution that includes:
VRVS Reflector
Web scheduling and administrative interfaces
Runs on inexpensive networked computing
platforms
Internet peer-to-peer for user conference
scheduling and attendance
HTTP server provides user self-service for
documentation, help, profile administration,
supported system and equipment
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TERENA, Networking Conference
Heterogeneous Client
support
An open system: choose your client and connect
VIC / RAT (previous) Mbone application.
Software H.323 client.
Internal Hardware H.323 client.
External Hardware H.323 client.
QuickTime Player.
Java Media Framework.
Plus extra services/features:
Applications and desktop sharing.
Bypass H.323 limitations.
Chat with web pages pop-up.
Documentations and Recommendations.
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TERENA, Networking Conference
Architecture
Multiplatform and Multi protocols Architecture
VRVS Web User Interface
QuickTime
Mbone Tools
MPEG
VRVS Reflectors (Unicast/Multicast)
QoS
H.320
4.0 & 5.0
Real Time Protocol (RTP/RTCP)
Network Layer (TCP/UDP/IP)
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SIP
Collaborative
Applications
H.323
Status
Description of the System
VRVS Status
Next version: presentation of
VRVS 3.0
Future development
Conclusion
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TERENA, Networking Conference
Last Numbers
As of today, more than 11100 machines
from 6200 different users in more than 50
countries are registered in the system.
During the year 2001, 2700 Multipoint
Conferences were performed (8000
Hours).
More than 3000 point to point connections
were established.
Since October 2001: 300 Multipoint (1100
hours) per Months
Average of 5 to 10 participants per videoconference session (with range from 2 to
40 participants).
June 4, 2002
TERENA, Networking Conference
VRVS Users
Machines and Users registered in VRVS
11000
10000
9000
8000
Machines
7000
Users
6000
5000
4000
3000
2000
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Apr-02
Feb-02
Dec-02
Oct-01
Aug-01
Jun-01
Apr-01
Feb-01
Dec-00
Oct-00
Aug-00
Jun-00
Apr-00
Feb-00
Dec-99
0
Oct-99
1000
Conferences in VRVS
Hours of Scheduled Multipoint Videoconferences
1400
1200
2000
2001
2002
1000
800
600
400
200
0
Jan
Feb
June 4, 2002
Mar
Apr
May
Jun
Jul
Aug
Sep
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Oct
Nov
Dec
Reflectors Topology
41 network Server world wide: US (ANL, BNL, Caltech(2), FNAL,
Florida, Internet2(7), Jlab, SLAC, Brazil(3), Canada(2), Czech Republic, Spain(2),
Finland, Israel(2), Italy, Japan, Poland, Portugal (2), Romania, Russia, Slovakia,
Switzerland (2), Taiwan, U.K (3)
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Internet2 deployment
7 Reflectors
In Internet2
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Version 3.0
Description of the System
VRVS Status
Next version: presentation of
VRVS 3.0
Future development
Conclusion
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TERENA, Networking Conference
V 3.0: Details (1/2)
Move to a professional database engine
Rewriting of all the code to improve the speed.
Redesign the interface to accommodate several
different communities and hundred Virtual
Rooms
Will support all International Time zones
(including summer time)
Booking improved: faster, more flexible and more
powerful
Authentication and Encryption
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TERENA, Networking Conference
V 3.0: Details (2/2)
Improve the machine detection (DHCP, web
cache, Firewall, NAT, …) and automatic detection
of the closest reflector.
VRVS Network Reflectors:
Better design to accommodate H.323 clients
Do packet recovery
Aggregate dynamically bandwidth for H.323 multipoint
conference between End Points to an overall
maximum conference bandwidth
Fix incompatibility between several H.323 end points
Remotely muted/unmuted video or/and audio
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User Profile
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Booking: Copy and Move
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Booking: Month View
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Booking: extra GUI
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Future Development
Description of the System
VRVS Status
Next version: presentation of
VRVS 3.0
Future development
Conclusion
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Future Development (1/2)
Adaptation to emerging standard: IPv6, SIP
Integration of new hardware/software for high
end interactivity
Already developed an MPEG2 MCU (using Minerva
codec). Will port to other codec if demand.
Developed a multipoint videoconferencing system
based on MPEG4 compression standard.
Developed a system using HDTV standard if
affordable hardware devices available.
Improved Security
Easy support of Firewall and NAT
Conference access control, user authentication and
authorization
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Future Development (2/2)
Develop advanced monitoring and tracking tools
for ad-hoc conference as well as scheduled
multi-site conferences
Develop a pure peer-to-peer VRVS Reflectors
network to be able to handle thousands of
parallel sessions.
Develop advanced network monitoring agents
(based on Java and web services) to run on
each network servers.
We will know in real time, packet loss ratio between
server, jitter, bandwidth available, reflector information
(CPU, memory, …)
Possibility to automatic rerouting between VRVS
reflectors to find a better network path.
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TERENA, Networking Conference
Conclusion
VRVS is a world wide videoconference
service in production since 5 years.
Version 3.0 will be release this summer to
face the demand and improve the system.
Our team still work to integrate all
emerging technology in only one system.
State of Art: Easy to Use
WWW.VRVS.ORG
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Team
Philippe Galvez, project manager
Gregory Denis, main developer (R&D)
David Collados, reflectors administrator
and developer
Kun Wei, reflectors developer and
support
Dave Adamczyk, technical support
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TERENA, Networking Conference
Question?
[email protected]
[email protected]
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Web User Interface
Virtual
conference
room and
meeting
name
International
time
zone
adjusted
Direct
Access
to
set-up
facilities
All
participants
known to all
Color
coded
reflector
connections
SELECT:
Mbone
Chat
Quicktime
Sharing
H.323
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Example 1
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Mbone Integration
Mbone
Tools
VRVS
Client
Application
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Access Grid and VRVS
AG
VRVS
AG-VRVS
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Using Desktop
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Using Wireless
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Multi-cast
Unicast
Using Conference Room
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High Quality Video
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High Quality Audio
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H.323
High (> 20Mbps) Bandwidth
Normal (10Mbps) / Low
(<1Mbps) Bandwidth
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