SDN Security Architecture
Designing, building, and managing networks that divide the network’s forwarding planes and control, permitting the control of the network to become instantly programmable and the latent infrastructure to be withdrawn for network services and applications is termed as Software-Defined Networking (SDN). While SDN comprehends numerous network technologies that are designed to make networks ductile and agile to aid storage infrastructure and the virtualized server of the data center, security needs to be within SDN.
SDN security has to be fabricated into the architecture as well as remitted as a service to defend the privacy, integrity, and availability of all attached information as well as recourses.
• The controller needs to be secured- With the SDN controller being the point of decision, it needs to be well controlled.
• The controller needs to be a protected-For instance if the SDN controller reclines due to a DDoS attack, the network goes down too. Thus, it instantly means the accessibility of the SDN controller has to be sustained.
• Build a trust-It is critical to protect communications throughout networks. Hence, it has to be ensured that the applications loaded and devices managed by the SDN controller are trusted entities.
• A robust policy framework needs to be created-To ensure that the SDN controllers do what you want, a system of checks and balances is much required to be created.
• Forensics and remediation need to be conducted-When any incident happens; it is necessary to understand what it is, try to recover and report it, hence, protecting from any further incident.
Deployment, management, and control of SDN security in an SDN environment are still on the move as some consider security within networks as best while others consider it apt when embedded in servers, computing and storage devices. Whatever be the best methods, solutions have to be designed in a manner wherein the environment is efficient, scalable, and secure.
• Easy-In a dynamic SDN environment deployment, management, and maintenance should be made simple and easy.
• Pocket-friendly- It should be cost-effective so that security could be deployed anywhere and everywhere without much hassle.
• Secure-It has to be designed in manner where it is safe and secure from latest targeted threats.