How to Learn Python from Scratch

If you want to learn programming today, the easiest and most popular language is Python . It is not only easy to learn but you can do many things through it – like web development, data science, artificial intelligence, automation, machine learning, scripting, and much more. In this blog, we will see step-by-step how to learn Python from zero , what resources to use, what projects to work on and how to go from a beginner to an expert. Why learn Python? There are many benefits of learning Python: This is a simple and readable language, which even a beginner can understand easily. Python is open-source i.e. it is available for free. It has many libraries and frameworks like Django, Flask, Pandas, NumPy, TensorFlow etc. The demand for Python is increasing very rapidly in the job sector. Step 1: Start with the Basics If you are a complete beginner, first install Python on your computer. You can download it from the official website – python.org. After installing, you ...
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What is Software-Defined Networking (SDN), and How Does It Work?

 


SDN (Software-Defined Networking): A Clearer Definition

SDN is a cutting-edge networking technique that divides the data plane from the control plane. In the past, network equipment such as switches and routers had hardware-based control logic of their own, which made them rigid and challenging to operate. Because SDN uses a software-based, centralized control plane, it offers increased programmability, automation, and flexibility.

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How Is SDN Operational?

1. Centralized Control: The setup and policies of the network are overseen by a central controller, which is typically a server or a cluster of servers.

2. Open Protocols: To facilitate communication between the controller and network devices, SDN makes use of open, standardized protocols like OpenFlow.

3. Programmable Infrastructure: With the ability to be set and controlled by a central controller, network components like switches and routers are becoming increasingly programmable.

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4. Abstraction Layer: SDN creates an abstraction layer that divides the logical and physical topologies of the network. More scalability and flexibility are made possible by this.

Advantages of SDN

  • Enhanced Flexibility: SDN eliminates the need for hardware upgrades, enabling quick network changes and configuration updates.
  • Enhanced Automation: By automating network processes, human error can be decreased and productivity can be increased.
  • Improved Programmability: SDN gives network managers the ability to use a variety of programming languages and APIs to customize the behavior of the network.
  • Lower Operating expenses: By streamlining network administration and lowering the requirement for specialized hardware, SDN can assist in lowering operating expenses.
  • Enhanced Security: By enabling more precise management and monitoring of network traffic, SDN can enhance network security.

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SDN Use Cases

  • Data Centers: To increase network automation, scalability, and flexibility, SDN is frequently utilized in data centers.
  • Enterprise Networks: SDN can help enterprises lower costs, simplify network management, and enhance performance.
  • Internet of Things (IoT): SDN can assist in handling the enormous quantity of connections and devices seen in IoT networks.
  • Cloud Computing: In cloud environments, SDN is necessary to provide scalable and adaptable network architecture.

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SDN is essentially a paradigm shift in networking that gives businesses the ability to create networks that are more secure, efficient, and agile. SDN offers a number of advantages that can completely change how networks are built, run, and maintained by dividing the control plane from the data plane and utilizing software-based automation.


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