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MODECP: A Multi-Objective Based Approach for Solving Distributed Controller Placement Problem in Software Defined

Chenxi Liao1, Jia Chen1, Kuo Guo1

  • 1The School Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, China.

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|July 28, 2022
PubMed
Summary
This summary is machine-generated.

This study introduces a multi-objective controller placement approach (MODECP) for Software-Defined Networks (SDN). The novel algorithm optimizes network delay, security, load balancing, and link occupancy for improved performance.

Keywords:
differential evolution algorithmdistributed controller placementmulti-objectivesoftware-defined network

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Area of Science:

  • Computer Science
  • Network Engineering
  • Distributed Systems

Background:

  • Software-Defined Networking (SDN) offers flexible network management via its control plane.
  • Distributed controller deployment is essential to avoid single points of failure in SDN.
  • Optimizing controller placement is critical for efficient and resilient SDN operation.

Purpose of the Study:

  • To propose a multi-objective controller placement approach (MODECP) for Software-Defined Networks.
  • To enhance network performance by considering delay, security, load balancing, and link occupancy simultaneously.
  • To develop algorithms for optimal controller positioning and quantity determination.

Main Methods:

  • An improved multi-objective differential evolution algorithm for controller placement and switch assignment.
  • An improved affinity propagation algorithm for determining the number of controllers per network partition.
  • Simulations using various network topologies from the Internet Topology Zoo.

Main Results:

  • The MODECP algorithm effectively balances multiple objectives, improving network delay, security, controller load, and link occupancy.
  • Compared to single-objective approaches, MODECP demonstrates superior performance across key network metrics.
  • The proposed method outperforms genetic and random placement algorithms in latency, security, load, and link overhead.

Conclusions:

  • The proposed MODECP algorithm provides an effective solution for multi-objective controller placement in SDN.
  • The approach enhances overall network performance by optimizing critical parameters.
  • MODECP offers a significant improvement over existing placement strategies for robust and efficient SDN architectures.