NDLI: On the controller placement for designing a distributed SDN control layer

Content Provider	IEEE Xplore Digital Library
Author	Jimenez, Y. Cervello-Pastor, C. Garcia, A.J.
Copyright Year	2014
Description	Author affiliation: Dept. of Telematics Eng., Univ. Politec. de Catalunya (UPC), Castellde-fels, Spain (Jimenez, Y.; Cervello-Pastor, C.; Garcia, A.J.)
Abstract	The software-defined network (SDN) advocates a centralized network control, where a controller manages a network from a global view of the network. Large SDN networks may consist of multiple controllers or controller domains that distribute the network management between them, where each controller has a logically centralized but physically distributed vision of the network. In this context, a key challenge faced by providers is to define a scalable control network that exploits the benefits of SDN when used in conjunction with efficient management strategies. Most of the control layer models proposed are not concerned with controller scalability, because they assume that commercial controllers are scalable in terms of capacity (quantity of flows processed per second). However, it has been demonstrated that overloads and long propagation delays among controllers and controllers-switches can lead to a long response time of the controllers, affecting their ability to respond to network events in a very short time and reducing the reliability of communication. In this work we define the principles for designing a scalable control layer for SDN, and show the desired control layer characteristics that optimize the management of the network. We address these principles from the perspective of the controller placement problem. For this purpose we improve and evaluate our previous approach, the algorithm called k-Critical. K-Critical discovers the minimum number of controllers and their location to create a robust control topology that deals robustly with failures and balances the load among the selected controllers. The results demonstrate the effectiveness of our solution by comparing it with other controller placement solutions.
Starting Page	1
Ending Page	9
File Size	345708
Page Count	9
File Format	PDF
ISBN	9783901882586
DOI	10.1109/IFIPNetworking.2014.6857117
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-02
Publisher Place	Norway
Access Restriction	Subscribed
Rights Holder	IFIP
Subject Keyword	Controller placement problem Network topology Scalability Clustering algorithms Control systems Robustness Software-defined network Delays Topology Control layer Controller scalabil-ity
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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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