Loading...

Controller Placement in SDNs

Fazeli, Mehran | 2018

770 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 50453 (19)
  4. University: Sharif University of Technology
  5. Department: Computer Engineering
  6. Advisor(s): Afshin Hemmatyar, Ali Mohammad
  7. Abstract:
  8. Controller placement affects all aspects of separating control plane from forwarding plane in SDN networks such as flow set up delay and reliability. Also it will limit Fault tolerance, and other performance evaluation measures such as propagation delay, accessibility and Convergence in WANs. These measures influence software designing with affecting controllers’ ability to respond to real-time events and push forwarding actions to forwarding elements. The placement problem consists of finding suitable places for controllers along with the number of them. Most of the works in this field try to decrease the delay between controllers to switches and between controllers themselves. Beside, there are also some efforts which consider reliability, load balancing, scalability, energy saving and some other parameters in static manners and partially in dynamic manners. In this research, we compared related works in controller placement problem, which try to solve this problem by considering different parameters and varied complexity algorithms, and classified them based on two different dimensions and by finding their weaknesses. We also proposed an improved approach on one of the related researches toward controller placement problem by considering delay as our intended parameter
  9. Keywords:
  10. Fault Tolerance ; Low Latency ; Energy Storage ; Software Defined Networks (SDN) ; Controller Placement

 Digital Object List

 Bookmark

...see more