SDN controller placement with availability upgrade under delay and geodiversity constraints

D Santos, T Gomes, D Tipper - IEEE Transactions on Network …, 2021 - ieeexplore.ieee.org
An inherent problem in Software-Defined Networking (SDN) is the Controller Placement
Problem, which addresses how many controllers to deploy in the network, and where to …

Joint optimization of primary and backup controller placement and availability link upgrade in SDN networks

D Santos, T Gomes - Optical Switching and Networking, 2021 - Elsevier
Abstract In Software-Defined Networking (SDN), the control and data planes are decoupled,
leading to a more programmable and efficient network management. In this paper, the …

Design of 5G MEC-Based Networks With 1: N: K Protection Scheme

HD Chantre, NLS da Fonseca - IEEE Transactions on Network …, 2022 - ieeexplore.ieee.org
With the advent of 5G networks, telecommunications infrastructure providers (InP) have
faced numerous challenges as they attempt to meet the stringent quality of service …

A biobjective availability optimization problem with nonlinear constraints

D Santos, L Martins, T Gomes - Annals of Telecommunications, 2023 - Springer
In this paper, we revisit a biobjective optimization problem arising in software-defined
networking with availability guarantees. The problem jointly optimizes the number of …

A heuristic method for controller placement and enhanced availability between SDN controllers

D Santos, JP Vidal, T Gomes… - 2020 11th International …, 2020 - ieeexplore.ieee.org
The Controller Placement Problem is an important and inherent component of SDN network
design. Several QoS requirements such as delay and availability impose constraints on the …

On Using Genetic Algorithm for Optimal Controller Placement in Software-Defined Networks

E Asamoah, I Ampratwum… - … Conference on Information …, 2024 - ieeexplore.ieee.org
Through centralized management, the Software-Defined Networking (SDN) paradigm
separates the control and data layers of conventional networks and offers greater flexibility …

A Genetic Algorithm-Based Improved Availability Framework for Controller Placement in SDN

E Asamoah, I Ampratwum… - … Symposium on Networks …, 2023 - ieeexplore.ieee.org
Thanks to the Software-Defined Networking (SDN) paradigm, which segregates the control
and data layers of traditional networks, large and scalable networks can now be dynamically …

Improving east/westbound SDN connectivity via enhanced availability

D Santos, JP Vidal, T Gomes… - 2021 12th International …, 2021 - ieeexplore.ieee.org
The control plane in software-defined networking (SDN) is composed by a logically
centralized set of controllers which acts as the brain of the SDN network. These controllers …

Genetic Algorithm-Based Improved Availability Approach for Controller Placement in SDN

E Asamoah - 2023 - ruor.uottawa.ca
Abstract Thanks to the Software-Defined Networking (SDN) paradigm, which segregates the
control and data layers of traditional networks, large and scalable networks can now be …

Failure simulation in software-defined networks with differential link availability

P Melo, L Jorge, T Gomes - 2021 17th International Conference …, 2021 - ieeexplore.ieee.org
In Software-Defined Networks (SDN) the placement of controllers is an important factor for
overall network reliability. Whereas most studies assume that all links have similar link …