Joe Mambretti, Jim Chen, Jeremy Weinberger, Tim Ward
International Center for Advanced Internet Research, Northwestern University
With Colleagues world-wide, Canada, CERN, Japan, Korea, Mexico, Netherlands, Singapore, Spain, and Sweden.
With its research partners throughout the world, iCAIR is active in a number of advanced digital video projects that are directed at enhancing the state-of-the-art as well as enabling research through the development of new media capabilities. The iCAIR GiDVN demonstrations at INET2000 were designed to present various advanced digital video capabilities, including those related to:
- Media-Enabled Applications: One such application is the International Institute for Materials Science (IVI), which is being developed as a high quality Internet-based research and educational institution with all the functionality of other such institutions, but without the requirements of a physical campus.
- Advanced Media Access: iCAIR has been developing prototypes of Internet "Digital Video Portals" – which will be a basis for the next generation portals. Current portals are not media enabled, but are based primarily on text and graphics. Both the IVI and the Digital Video Portal demonstrate capabilities for the three primary digital video modalities -- video conferencing, video-on-demand, and live video transmission
- Digital Media Asset Management: The Digital Video Portal demonstrated is supported by various server-based technologies, digital libraries, "video jukebox" technologies (which provides optimal capabilities for media data manipulation, such as those required for work-flow tasks), metadata, automatic DV metadata extraction and indexing, media object designation, creation and management of channels, etc.
- Internet Middleware: Middleware capabilities for digital video, as with other research and development projects at iCAIR, are guided by the architecture emerging from the Internet Engineering Task Force (IETF), which issues RFCs on key technical topics, such as the one on Middleware, RFC 2768. (ietf.org). The middleware capabilities demonstrated relate to implementations of DiffServ/QoS DV.
- DiffServ/QoS Enabled Digital Video: The next generation Internet will incorporate capabilities for Differentiated Services, as defined by the IETF. This architecture enables the Internet to provide scalable services, in part, by aggregating similar traffic, which is identified by packet marking at the IP-layer using the DS field. (RFC 2475)
- DiffServ/QoS Enabled Digital Video for the DOE Science Grid: iCAIR will show DS DV components related to its partnership in the EMERGE Science Grid (Esnet/MREN Experimental Regional Grid). EMERGE is based, in part, on Globus technologies. (www.evl.uic.edu, mren.org)
- Host-Enabled DiffServ/QoS: This demonstration indicates the potential for classification, packet marking, traffic shaping and policing for digital video on a host server as a sophisticated network ingress device. It is based on technology developed at the IBM Watson research lab in Hawthorn, New York.
- International DiffServ/QoS Enabled Digital Video: iCAIR has conducted a variety of experiments involving DS-enabled DV over international advanced high performance networks. The GiDVN international DS DV demonstrations at INET2000 involve Japan, Korea, CERN, MREN and iCAIR. (http://hunter.adtech.icair.org/inet2000.html)