What is VLAN?

What is VLAN?

VLAN (Virtual Local Area Network) is a basic networking technology that allows us to logically separate devices within a single physical network. Think of it as creating multiple virtual networks on one switch, giving you control over performance, security, and network management—all without the need for additional hardware.

Why should you care about VLAN?
In today’s fast-paced tech landscape, VLANs are essential for optimizing network performance and flexibility. Whether you’re in a business, educational institution, or a data center, VLANs provide benefits that can transform your network.

Here are the benefits of VLAN:
1️⃣ Network Segmentation
VLANs enable logical separation of devices based on functions, departments, or needs. For example, you can set up VLANs for Staff, IT department, and guests to ensure separation and better control.
2️⃣ Enhanced Security
VLANs isolate data traffic between departments. For instance, guest traffic is kept separate from internal company traffic, reducing the risk of unauthorized access.
3️⃣ Reduced Broadcast Domains
By limiting broadcast traffic to specific VLANs, VLANs help reduce unnecessary traffic, improving overall network performance.
4️⃣ Flexibility and Scalability
Moving a device from one VLAN to another can be done logically without needing to physically rewire connections.
5️⃣ Cost Efficiency
VLANs maximize the use of existing physical infrastructure, reducing the need for additional hardware.

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Source: LinkedIn

Credits: Mr. Aura Sony