Product Description
An Ethernet switch is a network device that connects multiple devices (such as computers, printers, or servers) within a local area network (LAN). It operates at the Data Link layer (Layer 2) of the OSI model, using MAC addresses to forward data frames to the correct destination device.
When a device sends data, the Ethernet switch examines the destination MAC address in the frame and then sends it only to the appropriate port where the receiving device is connected, which improves network efficiency compared to older hubs that broadcast data to all connected devices.
There are different types of Ethernet switches:
1. Unmanaged Switches: Simple plug-and-play devices with no configuration options, typically used in small networks.
2. Managed Switches: These allow for more control and customization, including features like VLAN support, traffic monitoring, and security settings, often used in larger or more complex networks.
3. PoE (Power over Ethernet) Switches: Provide power to connected devices, such as IP cameras or phones, over the same Ethernet cable used for data.
Ethernet switches vary in terms of port count, speed (e.g., 10/100/1000 Mbps, 10 Gbps), and advanced features, but all play a critical role in improving network performance and scalability.