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Your Data Center Is a Router: The Case for Reconfigurable Optical Circuit Switched Paths
 

Summary: Your Data Center Is a Router: The Case for Reconfigurable
Optical Circuit Switched Paths
Guohui Wang , David G. Andersen, Michael Kaminsky, Michael Kozuch,
T. S. Eugene Ng , Konstantina Papagiannaki, Madeleine Glick, Lily Mummert
Rice University, Carnegie Mellon University, Intel Labs Pittsburgh
1 Introduction
The rising tide of data-intensive, massive scale clus-
ter computing is creating new challenges for traditional,
hierarchical data center networks. In response to this
challenge, the research community has begun explor-
ing novel interconnect topologies to provide high bisec-
tion bandwidth--examples include Fat trees [2, 12, 8],
DCell [9], and BCube [10], among a rapidly growing set
of alternatives, many adapted from earlier solutions from
the telecom and supercomputing areas.
We argue that these solutions may provide too much--
full bisection bandwidth on packet timescales--at too
high a cost--literally tons of wiring and thousands of
switches. In this work, we suggest that research should
take a look back not only at historical topologies, but also

  

Source: Andersen, Dave - School of Computer Science, Carnegie Mellon University
Ng, T. S. Eugene - Departments of Computer Science & Electrical and Computer Engineering, Rice University

 

Collections: Computer Technologies and Information Sciences