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Network Innovation through OpenFlow and SDN
book

Network Innovation through OpenFlow and SDN

by Fei Hu
February 2014
Intermediate to advanced content levelIntermediate to advanced
520 pages
13h 14m
English
CRC Press
Content preview from Network Innovation through OpenFlow and SDN
245
QOS ISSUES IN OPENFLOW/SDN
© 2010 Taylor & Francis Group, LLC
To avoid excessive computational and storage overhead for a
controller in a large network, an additional adaptive flow aggrega-
tor (AFA) must be introduced. Instead of the controller computing
resource allocation for each flow, the AFA will categorize flows into
groups and will reserve resources based on each group. is is to be
noted because all traffic does not require per-flow isolation. ey only
need resource allocation for the aggregated flow.
As shown in Refs. [6] and [7], QoS routing has a significant
effect on the overall throughput of the network. Because the major
portion of Internet traffic is composed of the best-effort traffic, an
efficient routing algorithm that optimizes QoS must ...
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Publisher Resources

ISBN: 9781466572096