Operating at the Network layer, they can handle Internet Protocol (IP) addresses and make routing decisions based on logical addressing rather than just physical addresses. Rack-mounted switches are designed to fit into standard 19-inch server racks, providing dense port counts for data centers or enterprise wiring closets.
How a Switch Learns MAC Addresses and Forwards Frames
This allows them to route traffic between different virtual local area networks (VLANs) or subnets without needing to pass the traffic to a separate external router. These devices vary widely in port density, speed, and manageability; unmanaged switches offer plug-and-play convenience, while managed switches provide advanced features like VLAN configuration, Quality of Service (QoS), and remote monitoring through a command-line interface or web interface.
How a Network Switch Operates The operation of a network switch revolves around a fundamental process of learning and forwarding. If the switch has previously learned the location of that destination, it forwards the frame only through the specific port, minimizing latency and congestion.
How a Switch Learns MAC Addresses and Forwards Frames
The most significant advantage is the elimination of collisions, which occur when two devices attempt to send data simultaneously on a shared medium. Layer 3 Switching Layer 3 switches, also known as multilayer switches, add routing capabilities to the traditional switching function.
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