Controller placements for latency minimization of both primary and backup paths in SDNs

Fan, Yuqi; Wang, Lunfei; Yuan, Xiaohui

doi:10.1016/j.comcom.2020.09.001

Cited by 26 publications

(7 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Typically, the entire SDN network is governed through a single SDN controller. However, such single SDN controllers are primarily suitable for networks with limited coverage, such as local area networks [51]. The structure of a single controller SDN is depicted in Figure 2.…”

Section: Single and Multi Controller Architecturesmentioning

confidence: 99%

Optimizing high availability multi-controller placement in SDN/NFV 5G networks: a survey

Rasool,

Boujelben,

Zarai

2024

IJEECS

View full text Add to dashboard Cite

<p>In meeting the diverse and occasionally conflicting quality of service (QoS) requirements associated with modern communication networks, 5G technology has emerged as a pivotal player. In its architecture, 5G has adopted network function virtualization (NFV) and cloud-based approaches, aiming to simplify network and service deployment, operational processes, and management. The convergence of software defined networking (SDN) and NFV offers an effective solution, enabling scalable and high-performance 5G networks. However, this integration poses critical challenges, with the placement of SDN controllers being a central concern due to its significant impact on network performance, covering aspects such as latency, costs, and energy efficiency. This challenge is known as the controller placement problem (CPP). The central theme of this paper revolves around the intricate relationship between 5G core networks, virtualization technology, and the pressing concern of SDN controller placement, underscoring its significance in the modern networking landscape. We provide a survey of recent methodologies aimed at solving the CPP within the realm of SDN, with a particular focus on resiliency and high availability.</p>

show abstract

Section: Single and Multi Controller Architecturesmentioning

confidence: 99%

Optimizing high availability multi-controller placement in SDN/NFV 5G networks: a survey

Rasool,

Boujelben,

Zarai

2024

IJEECS

View full text Add to dashboard Cite

show abstract

“…In Reference 25, Fan et al used the average delay between the initial path and the back‐up path between controllers and switches as two significant metrics and proposed a model in which the Pareto front of these two metrics was the optimized objective. They also designed a heuristic algorithm (RALO) to solve the above model from the aspect of topology partitioning, controller location selection, and disturbance strategy.…”

Section: Related Workmentioning

confidence: 99%

A robust‐link controller placement model for large‐scale software defined networks

Wang

Guan

2023

Trans Emerging Tel Tech

View full text Add to dashboard Cite

The software defined network (SDN) is a novel flexible network architecture. For the purpose of facilitating management, multiple controllers need to be placed in large‐scale SDN. When a link failure occurs, the path can be re‐planned by the control layer. However, unreasonable controller placement scheme brings about a sharp latency increase between controllers and switches. The reliability of the SDN is therefore affected. To this end, we define a link robust distance (LRD) by considering the states during link failures and non‐link failures. Then, we use it design a robust link controller placement model (RLCPM) which can reduce the impact of link failures on the delay between the controller and the switch. In addition, we design a heuristic algorithm with low‐time complexity to solve the RLCPM more effectively. Experimental results show that, compared with other models, RLCPM simplifies the controller placement problem when considering a link failure. The maximum latency between controllers and switches of the obtained controller placement scheme is lower.

show abstract

“…Te location of controllers in a distributed SDN controller architecture has a signifcant impact on network performance in terms of latency, dependability, and other factors, which is known as the CPP [3]. Te number of controllers to be deployed and their placement is two facets of the CPP.…”

Section: Controller Placement Problem (Cpp)mentioning

confidence: 99%

“…Fan et al [3] proposed a unique multiobjective metaheuristic-based Reliability-Aware and Latency-Oriented (RALO) controller placement algorithm. Tey tested it on eight real networks and two generated networks conforming to the Erdos-Renyi (ER) random model and the small-world model.…”

Section: Related Workmentioning

confidence: 99%

Multi-Controller Placement Optimization Using Naked Mole-Rat Algorithm over Software-Defined Networking Environment

Sapkota

Dawadi

Joshi

2022

Journal of Computer Networks and Communications

View full text Add to dashboard Cite

Software Defined Networking (SDN) is the novel networking paradigm where decoupling of the control plane from the data plane has its inherent advantages. Controller Placement Problem (CPP) involves placing the optimal number of controllers at the appropriate locations while meeting prerequisites such as latency, load balancing, energy and computational time. To achieve scalability, deployment of multiple controllers on large-scale SDN is one of the key challenges. CPP can be addressed as a multi-objective combinatorial optimization problem whose solution is a trade-off between multiple optimization parameters. In this paper, a novel population-based meta-heuristic algorithm viz. Naked Mole-Rat (NMR) Algorithm has been proposed to optimize the location for controller placement based on Switch-Controller (SC), Controller-Controller (CC) latency while maintaining load balancing among the controllers. The ideas and mechanisms are illustrated using two publicly available standard topologies viz. Ernet and Savvis. The controller localization approach implemented with NMR algorithm has slightly a better result as compared with the Bat algorithm.

show abstract

Controller placements for latency minimization of both primary and backup paths in SDNs

Cited by 26 publications

References 24 publications

Optimizing high availability multi-controller placement in SDN/NFV 5G networks: a survey

Optimizing high availability multi-controller placement in SDN/NFV 5G networks: a survey

A robust‐link controller placement model for large‐scale software defined networks

Multi-Controller Placement Optimization Using Naked Mole-Rat Algorithm over Software-Defined Networking Environment

Contact Info

Product

Resources

About