K8 : Networking : Switches

 How does system A connect system B 

What is a Switch ?

A network switch is a fundamental device used in various scenarios to manage and direct data traffic within a network. Switches are crucial for building efficient and scalable networks, particularly in Local Area Networks (LANs). Here’s when and why you would use a network switch:

1. Connecting Multiple Devices within a Local Network (LAN)

• Scenario: In an office, home, or data center where multiple computers, printers, servers, and other devices need to communicate with each other.
• Purpose: A switch connects these devices to form a local network, allowing them to share resources like printers or access the internet through a single router.
• Function: The switch intelligently forwards data packets between devices on the same network, based on MAC addresses, without flooding all ports.