Abstract
A detailed examination of evolving traffic characteristics, operator requirements, and network technology trends suggests a move away from nonblocking interconnects in data center networks (DCNs). As a result, recent efforts have advocated oversubscribed networks with the capability to adapt to traffic requirements on-demand. In this paper, we present the design, implementation, and evaluation of OSA, a novel Optical Switching Architecture for DCNs. Leveraging runtime reconfigurable optical devices, OSA dynamically changes its topology and link capacities, thereby achieving unprecedented flexibility to adapt to dynamic traffic patterns. Extensive analytical simulations using both real and synthetic traffic patterns demonstrate that OSA can deliver high bisection bandwidth (60%-100% of the nonblocking architecture). Implementation and evaluation of a small-scale functional prototype further demonstrate the feasibility of OSA.
Original language | English (US) |
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Article number | 6490069 |
Pages (from-to) | 498-511 |
Number of pages | 14 |
Journal | IEEE/ACM Transactions on Networking |
Volume | 22 |
Issue number | 2 |
DOIs | |
State | Published - Apr 2014 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Software
- Computer Science Applications
- Computer Networks and Communications
- Electrical and Electronic Engineering
Keywords
- Data center networks (DCNs)
- optical networking technology
- switching architecture