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Switching the Optical Divide: Fundamental Challenges for Hybrid Electrical/Optical Datacenter Networks
 

Summary: Switching the Optical Divide: Fundamental Challenges for
Hybrid Electrical/Optical Datacenter Networks
Hamid Hajabdolali Bazzaz , Malveeka Tewari , Guohui Wang , George Porter ,
T. S. Eugene Ng , David G. Andersen, Michael Kaminsky, Michael A. Kozuch, Amin Vahdat
University of California, San Diego, Rice University, Carnegie Mellon University, Intel Labs
Abstract
Recent proposals to build hybrid electrical (packet-switched) and
optical (circuit switched) data center interconnects promise to re-
duce the cost, complexity, and energy requirements of very large
data center networks. Supporting realistic traffic patterns, how-
ever, exposes a number of unexpected and difficult challenges to
actually deploying these systems "in the wild." In this paper, we
explore several of these challenges, uncovered during a year of
experience using hybrid interconnects. We discuss both the prob-
lems that must be addressed to make these interconnects truly
useful, and the implications of these challenges on what solutions
are likely to be ultimately feasible.
Categories and Subject Descriptors
C.2.1[Network Architecture and Design]: Network topology,
Packet switching networks, Circuit switching networks

  

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

 

Collections: Computer Technologies and Information Sciences