Loading...

Traffic Management of Software-Defined Networks

Almasi-Kashi, Hamid Reza | 2016

853 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 48050 (19)
  4. University: Sharif University of Technology
  5. Department: Computer Engineering
  6. Advisor(s): Ajorloo, Hossein; Movaghar-Rahimabadi, Ali
  7. Abstract:
  8. Despite being widespread, traditional IP networks are complex and hard to manage.This complexity is due to tight coupling between network control and data planes. A Software-Defined Network is a network architecture in which data plane forwarding is managed by a decoupled control plane. In these networks, control logic is moved to a logically centralized external controller which builds a global network state view and uses it to allocate network resources and provide necessary abstraction to facilitate programming forwarding elements. Generally, traffic management refers to measurement and analysis of network traffic in order to improve network performance in traffic and resources levels which is enabled by studying traffic-related performance requirements like bandwidth utilization, delay, jitter and packet loss rate. Due to significant advantages of software-defined network architecture, traffic management solutions by a centralized system can be done more intelligently and efficiently. Specifically,these networks provide a centralized view containing global network information and global application information like their quality of service requirements to be able to allocate network resources dynamically and optimally. There are many works done in the context of traffic management of software-defined networks which consider ingress and egress switches as traffic management border. This means that the three-stage traffic management loop including measurement, analysis and control is performed on these switches and switches lying between them, while the traffic passing the network comes from end-host applications. In this project, a network architecture is proposed to participate applications in traffic management in order to receive desired quality of service, then an instance of the architecture is implemented for a flow to receive an appropriate bandwidth using an efficient monitoring and control mechanism
  9. Keywords:
  10. Data Center ; Software Defined Networking (SDN) ; Network Traffic ; Traffic Management ; Service Quality ; Application-Aware Network

 Digital Object List

 Bookmark

...see more