Overview
Ethernet is the standard technology for wired local area networks (LANs). It defines how devices such as computers, printers, and servers connect and communicate over cables using specific protocols. Known for its reliability and speed, Ethernet has been the backbone of enterprise networking since the 1980s and continues to evolve with faster standards.
How It Works
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Cabling: Typically uses twisted-pair copper cables (Cat5e, Cat6, Cat6a, Cat7) or fibre optic cables for longer distances and higher speeds.
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Data transmission: Breaks data into frames that include source and destination addresses, ensuring proper delivery across the network.
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Switching: Devices are usually connected via switches that forward data frames intelligently to the right destination.
Key Features
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Speed: Ethernet standards range from 10 Mbps to 400 Gbps, with 1 Gbps and 10 Gbps widely used in enterprises.
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Reliability: Provides stable and consistent performance compared to wireless connections.
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Security: Being wired makes it less vulnerable to external interference or unauthorised access than Wi-Fi.
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Scalability: Supports small office setups through to hyperscale data centres.
Use Cases
- Enterprise LANs: Connecting desktops, servers, and printers within offices.
- Data centres: Providing high-speed backbone connectivity between racks and systems.
- Industrial settings: Offering robust, interference-resistant connectivity for critical control systems.
