An efficient approach to robust SDN controller placement for security

S Yang, L Cui, Z Chen, W Xiao - IEEE Transactions on Network …, 2020 - ieeexplore.ieee.org
Security is one of the critical issues in traditional networks. Software-Defined Networking
(SDN) improves the security aspect by separating the control plane and the data plane of …

Resilient backup controller placement in distributed SDN under critical targeted attacks

E Calle, D Martínez, M Mycek, M Pióro - International Journal of Critical …, 2021 - Elsevier
Today, telecommunication networks are crucial infrastructures, as has, for example, been
demonstrated by the COVID-19 crisis. Thus, protecting such infrastructures, including …

Migrating from legacy to software defined networks: A network reliability perspective

Y Al Mtawa, A Haque, H Lutfiyya - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Designing survivable communication networks to achieve carrier-grade five-nines reliability
is of paramount importance for the network operators. This article addresses service …

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 …

Network protection against node attacks based on probabilistic availability measures

M Pióro, M Mycek… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
We consider a network security and configuration management problem of locating service
controllers so as to maximize availability of services in case of targeted attacks on the …

Assessment of connectivity-based resilience to attacks against multiple nodes in SDNs

D Santos, A De Sousa, C Mas-Machuca, J Rak - IEEE Access, 2021 - ieeexplore.ieee.org
In Software Defined Networks (SDNs), the control plane of a network is decoupled from its
data plane. For scalability and robustness, the logically centralized control plane is …

The minimum cost D-geodiverse anycast routing with optimal selection of anycast nodes

A de Sousa, D Santos - … conference on the design of reliable …, 2019 - ieeexplore.ieee.org
Consider a geographical network with associated link costs. In anycast routing, network
nodes are partitioned into two sets-the source nodes and the anycast (destination) nodes …

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 …

Determining the minimum cost Steiner tree for delay constrained problems

L Martins, D Santos, T Gomes, R Girão-Silva - IEEE Access, 2021 - ieeexplore.ieee.org
We address a variant of the Steiner tree problem for delay constrained problems. The
addressed problem consists in determining the minimum cost Steiner tree, while …

Min–max optimization of node‐targeted attacks in service networks

B Fortz, M Mycek, M Pióro, A Tomaszewski - Networks, 2024 - Wiley Online Library
This article considers resilience of service networks that are composed of service and
control nodes to node‐targeted attacks. Two complementary problems of selecting attacked …