NDLI: Development of an active external network topology module for Floodlight software-defined network controller

Content Provider	Springer Nature Link
Author	skov, A. A. Nikitinskiy, M. A. Alekseev, I. V.
Copyright Year	2016
Abstract	Traditional network architecture is inflexible and complex. This observation has led to a paradigm shift toward software-defined networks (SDNs), in which the network control level is separated from the data link layer. This change became possible because of the control plane transfer from switching equipment to software modules that run on a dedicated server called a controller (or a network operating system) or to network applications that work with this controller. Methods of presentation, storage, and communication interfaces with network topology elements available to SDN controller users are the most important aspects of network operating systems because the operation of some key controller modules depends heavily on the internal representation of the network topology. Firewall and routing modules can be cited as examples of these modules. This paper considers the methods used to represent and store the network topology, as well as communication interfaces with corresponding modules of the Floodlight controller. An alternative algorithm for exchanging messages on the changes in the network topology between the controller and network applications has been proposed and developed. The algorithm makes it possible to issue notifications based on a subscription to relevant events. An API for the module of interacting with applied programs of the SDN controller has been developed. The Topology Tracker module has been designed based on this algorithm and API. In active mode, this module can inform network applications about the changes in the network topology and store its compact representation for the interaction acceleration.
Starting Page	546
Ending Page	551
Page Count	6
File Format	PDF
ISSN	01464116
Journal	Automatic Control and Computer Sciences
Volume Number	50
Issue Number	7
e-ISSN	1558108X
Language	English
Publisher	Allerton Press
Publisher Date	2017-01-22
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	software-defined network Floodlight controller external module service SDN network topology Topology Tracker DEventBus Link Discovery Control Structures and Microprogramming
Content Type	Text
Resource Type	Article
Subject	Signal Processing Control and Systems Engineering Software

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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