iCAIR Consortium QBone Proposal
Launched
in October 1998, the QBone is an Internet2 initiative to build a
testbed for new IP quality of service (QoS) technologies. Advanced
university applications like remote instrument control, scientific
collaborations and virtual classrooms are placing increasingly higher
demands on the research networks. The QBone testbed will initially
implement the differentiated services (DiffServ) approach to QoS now taking
shape within the IETF. DiffServ has great potential to overcome some of the
complexities of earlier IP QoS architectures, but requires a great deal of
implementation experience, engineering, and study before it will mature to
offer production-quality QoS.
This project uses two driver applications--digital video and
tele-immersion--both of which are latency intolerant. Typical digital video
streams currently used by some members of this consortium are MPEG1 1.5
Mbps. Tele-immersion can incorporate such a stream, and add a measure of
control information and data (sometimes a separate audio channel for sound
effects), but a basic 1.5 Mbps estimate is sufficient for now. It is
expected that some experiments will be conducted using more than 1.5 Mbps,
3 Mbps and greater. This project will be linked to a parallel middleware
project.
Collaborators
iCAIR/Northwestern University, MREN Consortium, Indiana
University/TransPAC, USA
Centre for Telematics and Information Technology, University of Twente,
Utrecht University, The Netherlands
Contact
Phil Chimento
Centre for Telematics and Information Technology (CTIT), University of
Twente, Norway
chimento@cs.utwente.nl
Joseph Mambretti
MREN, Northwestern University, USA
j-mambretti@northwestern.edu
Cees de Laat
Department of Physics, Utrecht University, Norway
c.t.a.m.delaat@phys.uu.nl
http://qbone.ctit.utwente.nl/
http://www.internet2.edu/qos/qbone/