Which of the following is an advantage of software-defined networking (sdn)?

Which of the following is an advantage of software-defined networking (sdn)?

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Software-defined networking (SDN) is a revolutionary approach to network management that offers numerous advantages over traditional networking methods. One of the key benefits of SDN is its ability to provide a centralized and programmable network infrastructure, which allows for greater flexibility, scalability, and efficiency. In this article, we will explore the advantages of software-defined networking and why it has become an increasingly popular choice for organizations.

Improved Network Agility

Advantage: One of the significant advantages of SDN is its ability to enhance network agility. Traditional networks often require manual configuration and management of individual network devices, which can be time-consuming and prone to errors. With SDN, network administrators can centrally manage and control the entire network infrastructure through a software-based controller. This centralized control enables quick and automated provisioning of network resources, allowing for faster deployment of new services and applications.

Additional Details: SDN separates the control plane from the data plane, enabling network administrators to define network policies and rules in a centralized manner. This separation facilitates dynamic network configuration and allows for the rapid adaptation of the network to changing business requirements. By decoupling network control from the underlying hardware, SDN provides a level of flexibility and agility that is not possible with traditional networking approaches.

Enhanced Scalability

Advantage: Scalability is another significant advantage of software-defined networking. In traditional networks, scaling the network infrastructure to accommodate increased traffic or new devices often requires manual configuration and the addition of more hardware. This process can be complex, time-consuming, and costly. SDN simplifies the scalability process by abstracting the network control from the underlying hardware.

Additional Details: With SDN, network administrators can scale the network infrastructure by simply adding more virtualized network resources or by reconfiguring existing resources through the software-based controller. This allows for more efficient resource utilization and eliminates the need for manual configuration of individual network devices. As a result, organizations can easily adapt their networks to handle increased traffic or accommodate new devices without significant disruptions or costly hardware upgrades.

Improved Network Security

Advantage: Network security is a critical concern for organizations of all sizes. SDN offers several advantages in terms of network security. By centralizing the network control, SDN enables network administrators to implement consistent security policies across the entire network infrastructure. This centralized control allows for better visibility and control over network traffic, making it easier to detect and respond to security threats.

Additional Details: In addition, SDN provides the ability to segment the network into multiple virtual networks or subnets, each with its own security policies and access controls. This segmentation helps contain security breaches and prevents lateral movement within the network. Furthermore, SDN allows for the dynamic enforcement of security policies based on real-time network conditions, enhancing the overall security posture of the network.

Increased Network Efficiency

Advantage: SDN improves network efficiency by optimizing traffic flow and resource utilization. Traditional networks often suffer from network congestion and suboptimal routing decisions, leading to performance issues and inefficient use of network resources. SDN addresses these challenges by providing a holistic view of the network and enabling intelligent traffic engineering.

Additional Details: With SDN, network administrators can dynamically route traffic based on real-time network conditions, ensuring that traffic takes the most efficient path through the network. This dynamic routing capability minimizes congestion, reduces latency, and improves overall network performance. Additionally, SDN allows for the efficient allocation and utilization of network resources, ensuring that resources are allocated based on actual demand rather than static configurations.


In conclusion, software-defined networking (SDN) offers several advantages over traditional networking approaches. The ability to improve network agility, enhance scalability, increase network security, and improve network efficiency makes SDN an attractive choice for organizations seeking to modernize their network infrastructure. By centralizing network control and leveraging software-based controllers, SDN provides a flexible, scalable, and secure network environment that can adapt to the evolving needs of businesses.


1. networkworld.com
2. cisco.com
3. sdncentral.com
4. techtarget.com

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