**** Columbia Network Research Group Seminar ****

Title:    "Internet2 Quality of Service: Is Less More?" 
            also 
          "Internet2 and Network Research"
Speaker:  Ben Teitelbaum
          Internet2
When:     Monday [!], October 29, 2001, 1 pm
Where:    Interschool Lab, 7th Floor CEPSR
          Columbia University
Host:     Prof. H. Schulzrinne


ABSTRACT

   The Internet2 project is a partnership of over 180 US research
   universities, working with industry and government, to enable new
   advanced networked applications to meet the emerging needs of higher
   education.  Since its inception, one of the primary technical
   objectives of Internet2 has been to engineer scalable, interoperable,
   and administrable interdomain Quality of Service (QoS) to support an
   evolving set of new advanced networked applications. 

   In the QBone initiative, Internet2 planners, engineers, and advanced
   applications developers have been working since 1998 to design and
   deploy a testbed for interdomain IP differentiated services
   (diff-serv).  The initial focus of the QBone was on building an
   EF-based, virtual circuit service dubbed the "QBone Premium Service". 
   Although this effort made some progress, deployment was hampered by a
   variety of technical and non-technical factors.  The QBone initiative
   has more recently shifted focus to non-elevated services that deploy
   incrementally, with no policing.  This talk will survey the
   challenges facing elevated forms of QoS like the QBone Premium
   Service, discuss the design, implementation, and deployment of the
   QBone Scavenger Service, and look ahead at the future of Internet2
   QoS.

   The QoS talk will be prefaced by a short overview of Internet2, with
   emphasis on the relevance of Internet2 to the computer science
   research community.  Specifically, I will mention the work of the
   Internet2 Network Research Liaison Council and projects underway to
   provide networking researchers with an overlay routing service and
   access to a distributed user-level account infrastructure.

BIO

   Ben Teitelbaum is senior engineer with Internet2 and Advanced Network
   & Services.  He chairs the Internet2 Quality of Service Working
   Group, which is responsible for the QBone initiative--an effort
   specify and deploy an architecture for interdomain IP differentiated
   services.  He wasted a couple of years of his life trying to build an
   IP circuit-emulation service, but is now focused on lighter-weight
   more pragmatic forms of QoS.  Ben is active in the engineering of
   advanced services for the high-performance Abilene backbone network
   and is involved in building diagnostic algorithms and tools for the
   Internet2 End-to-End Performance initiative.  At Advanced Network &
   Services, Ben contributed to the design of the Surveyor one-way delay
   measurement platform and is currently advancing through the IETF an
   open standard for one-way delay measurement.  He holds degrees in
   mathematics from the Massachusetts Institute of Technology and in
   computer science from the University of Wisconsin Madison.  Ben lives
   in Connecticut with his wife, two sons, and twenty-five typewriters.