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c-Through: Part-time Optics in Data Centers Guohui Wang , David G. Andersen, Michael Kaminsky, Konstantina Papagiannaki,
 

Summary: c-Through: Part-time Optics in Data Centers
Guohui Wang , David G. Andersen, Michael Kaminsky, Konstantina Papagiannaki,
T. S. Eugene Ng , Michael A. Kozuch, Michael Ryan
Rice University, Carnegie Mellon University, Intel Labs Pittsburgh
ABSTRACT
Data-intensive applications that operate on large volumes of data
have motivated a fresh look at the design of data center networks.
The first wave of proposals focused on designing pure packet-
switched networks that provide full bisection bandwidth. However,
these proposals significantly increase network complexity in terms
of the number of links and switches required and the restricted
rules to wire them up. On the other hand, optical circuit switching
technology holds a very large bandwidth advantage over packet
switching technology. This fact motivates us to explore how optical
circuit switching technology could benefit a data center network.
In particular, we propose a hybrid packet and circuit switched data
center network architecture (or HyPaC for short) which augments
the traditional hierarchy of packet switches with a high speed, low
complexity, rack-to-rack optical circuit-switched network to sup-
ply high bandwidth to applications. We discuss the fundamental

  

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