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Routing Optimization with SDN in Data Center Networks
draft-kong-sdnrg-routing-optimization-sdn-in-dc-07

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Qian Kong , Tao Gao , Dajiang Wang , Zhenyu Wang , Jiayu Wang, Bingli Guo , Shanguo Huang
Last updated 2020-04-09 (Latest revision 2019-10-07)
RFC stream (None)
Intended RFC status (None)
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Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:

Abstract

With the open and standard programmatic interface and the flexibility of controlling network, Software Defined Network (SDN) can obviously simplify and integrate operation and business support systems. As a consequence, to satisfy the rising switching demand in the data center network, it is a good option to adopt SDN technology. In addition, current architecture of data center network is far from ideality, which results in the low utilization rate in bandwidth resource. For example, mice flow cannot be well effectively served in the conventional Wavelength Division Multiplexing (WDM) optical network with at least 50GHz spectrum interval. From a data center network perspective, it is necessary to further improve the resource utilization efficiency and the flexibility of coping with different traffic. This document described an optical data center interconnect, which comprises both the fixed and flexible grid transceivers. A traffic monitor is implemented in the SDN-based data center network to evaluate the coming traffic demands and allocate appropriate spectrum for the request. For instance, mice flow can be served by fixed grid transceivers, well the elephant flows can be transmitted by the flexi-grid transceiver using multiple subcarriers to form a superchannel. Thus, spectrum efficiency is optimized and bandwidth utilization is improved dramatically.

Authors

Qian Kong
Tao Gao
Dajiang Wang
Zhenyu Wang
Jiayu Wang
Bingli Guo
Shanguo Huang

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)