Toronto Networking Seminar


Organized by Department of Computer Science and
Department of Electrical and Computer Engineering, University of Toronto







The SpoVNet Architecture 
and its Underlay Abstraction Layer – 

Spontaneous Service Provisioning in Heterogeneous Networks





Oliver P. Waldhorst


University of Karlsruhe, Germany 


 




Date: Friday, October 2, 2pm

Location: BA 1210 



Abstract:




  Overlay-based services are a popular approach for providing functionality like 
  multicast, quality of service or security in the Internet without requiring 
  infrastructure support. This talk presents an overview of the Spontaneous 
  Virtual Networks (SpoVNet) architecture and its Underlay Abstraction layer 
  that enables easy and flexible creation of such services. Also building on an 
  overlay approach, the Underlay Abstraction provides generic functionality to 
  cope with mobility, multi-homing, and heterogeneity. It manages node mobility 
  by separating node identifiers from network locators and it provides 
  persistent connections by transparently switching locators. Multi-homing is 
  supported by choosing the most appropriate pair of network locators for each 
  connection. In order to cope with network and protocol heterogeneity, it uses 
  dedicated overlay nodes, e.g., for relaying between IPv4 and IPv6 hosts. Since 
  the functionality provided by the Underlay Abstraction can be used by several 
  overlay-based services in parallel, redundant functionality is removed from 
  services and applications. 



Bio:



Oliver P. 
Waldhorst received a Diplom-Informatiker degree (comparable to M.Sc. in computer  
science) in 2000 and a Ph.D. in computer science in 2005 from University of 
Dortmund, Germany.  He is currently a post doctoral researcher at 
University of Karlsruhe, Germany, where he is  leading a Young Investigator 
Group, a junior research group funded by the 'Concept for the Future' of 
Karlsruhe Institute of Technology within the framework of the German Excellence 
Initiative. From September 2009 to February 2009 he is a visiting researcher in 
the group of 

Prof. Liebeherr at University of Toronto. His research interest include 
peer-to-peer- and  overlay-networks in

next-generation communication systems, Grid applications in mobile and hybrid 
environments as well as modeling and analysis of spontaneous, self-organizing 
systems. For more  information visit http://www.yin.kit.edu/en/junior-research-groups/dr.-oliver-waldhorst





Host of the talk



  Jörg Liebeherr (jorg@comm.toronto.edu)