kumoh national institute of technology
Networked Systems Lab.

NSL Seminar

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By : Alif Akbar Pranata
Date : 2017-09-08
Views : 624

Software-defined networking (SDN) is a softwariza-
tion technology of networks that can optimize processes and
operation costs and bring new values to infrastructures. The
issue of reliability, however, becomes more complex in SDN due
to new and multi-lateral network domains, and poses many crit-
ical challenges on the existing network reliability mechanisms
in order to achieve the same reliability services. In this paper,
we first identify and illustrate reliability challenges in a con-
trol path network that lies between a control plane network
and a data plane network to connect them through either an
in-band SDN or an out-of-band traditional network. We then
observe a number of distinctive control path reliability problems.
Accordingly, we propose and develop a control path management
framework to enhance SDN reliability addressing the observed
issues. It includes several control path reliability algorithms that
enhance performance, network protocols that simplify manage-
ment of control path reliability, as well as a novel control message
classification and prioritization system that serves as a fundamen-
tal approach to improve scalability and then reliability for SDN.
Recognizing the control path as a network and understanding its
potential and practical reliability problems enable us to provide
effective solutions that prior approaches fall short of. We val-
idate our proposed management framework through extensive
experiments through a real network system as well as numerical
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