5 Advantages and Disadvantages of SDN | Drawbacks & Benefits of SDN

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5 Advantages and Disadvantages of SDN | Drawbacks & Benefits of SDN

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5 Advantages and Disadvantages of SDN | Drawbacks & Benefits of SDN

5 Advantages and Disadvantages of SDN | Drawbacks & Benefits of SDN


SDN: What is it?

Through the use of Application Programming Interface (API), Software-Defined Networking (SDN) is a technology that enables networking devices to establish direct connections with applications. The software itself handles all of the hardware device management. Usually, they divide the network into smaller sections for this reason.

How is SDN operated?

Hardware and resources are virtualized via a computer network that is created by an SDN. The criteria states that SDN is capable of self-adoption. For instance, if speed is required, the network can be adjusted to meet the requirements.

Software Defined Networking has a lot of advantages, but it also has a lot of disadvantages. Think about the advantages and disadvantages before putting SDN into practice.

This article will discuss the 5 Advantages and Disadvantages of SDN | Drawbacks & Benefits of SDN. You will be aware of the pros and cons of SDN use by the end of this article.

Now let's get started,


Advantages of SDN

1. Cost

Overall, SDN cost savings result from the centralized and automated nature of network administration. 


SDN helps users reduce needless expenses by optimizing server utilization and enhancing virtualization. 


In addition to this, SDN facilitates multitasking, which lowers network operations. Thus, there is no longer a need for pricey gear.

2. Security

A controller that is part of SDN offers network-wide security. This controller makes sure that the appropriate security guidelines and data are applied throughout the network. 


Additionally, SDN has a single management system installed. The features and security will be under the sole authority of one organization. 

Since there is just one central point involved, this kind of technique is well known to be extremely safe. It would be simple for the administrator to restrict security risks and prevent infection.

3. Centralization

SDN makes it possible to administer the entire network centrally. From one central location, all networking devices may be managed and watched over. 


It gets rid of the obstacle that old systems caused when it came to controlling the infrastructure. SDN enables system management, even in situations where it is necessary.

4. Scalability

Scalability is one of the other advantages of SDN. The network's infrastructure is instantaneously modifiable. all without requiring resource purchases or configurations.

5. Optimization

When SDN is used, a new method of hardware device optimization is implemented. SDN controllers allow any hardware, both new and old, to be assigned a specific purpose. 


As a result, it does away with the limitation on hardware that is intended for a single use. 

Disadvantages of SDN 

1. Configuration

Because it requires significant financial outlays, reconfiguring an SDN network is not an easy operation. 


In particular, establishing every SDN protocol and controller is not enough to accomplish its implementation. There must be a reconfiguration of the entire network. 


2. Latency

Each device that is connected to a network takes up space there. The quantity of virtualized resources determines how quickly devices and the network communicate. 


Additional virtualized resources can be added if faster performance is required. Virtualizing resources now has the potential to cause a large delay. 

3. Maintenance

One crucial component of networking that is essential to its operation is maintenance. An SDN is deficient in its maintenance aspect. 


The real equipment become nearly hard to manage as a result. particularly when expanding a network. 

4. Complexity

Standardized security protocols are absent with SDN. There are still security problems despite the existence of some third-party service providers. 


Major attacks can only be avoided by those with SDN system management skills.

5. Device Security

SDN eliminates the need for traditional switches and routers. Consequently, the security that is attached to them is left out. 


For instance, SDN lacks the security that is associated with firewalls. This indicates that external attackers have more access to your network.

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