Everything We Need to Know About Ethernet

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• First created in 1973 by a group of Xerox Palo Alto Research Center (PARC) engineers, including Robert Metcalfe and David Boggs, Ethernet allowed people to connect multiple computers in a local area network (LAN). Ethernet provided a set of rules for sending data back and forth between specific machines rapidly. The name Ethernet was inspired by?luminiferous ether.

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• There are seven categories of Ethernet cable in use today, offering various maximum bandwidth and data rates.
• Cat 5: Up to 350 MHz and 100 Mbps
• Cat 5e (enhanced): Up to 350 MHz and 1 Gbps
• Cat 6: Up to 550 MHz and 1 Gbps
• Cat 6a (augmented): Up to 550 MHz and 10 Gbps
• Cat 7: Up to 600 MHz and 10 Gbps
• Cat 7a: Up to 1 GHz and 40 Gbps
• Cat 8: Up to 2 GHz and 25 or 40 Gbps

Ethernet Ports

• Many routers and mesh systems today have a limited number of Ethernet ports. Like cables, they have different ratings but are usually more straightforward. Gigabit ports are common: Several routers offer 2.5 Gbps ports, and a handful of routers support 10 Gbps. The maximum data rate tends to be printed on the port for routers. You may have to check the specs for other devices.