1.5 - Ethernet Standards

Ethernet

• The most popular networking technology in the world– Standard, common, nearly universal

• Many different types of Ethernet– Speeds, cabling, connectors, equipment

• Modern Ethernet uses twisted pair co

IEEE Ethernet standards

The 802.3 committee– All types and standards of Ethernet– Copper and fiber

Deciphering the standard

• Speed, signal, and media– All contained in the standard name, i.e., 1000BASE-T

• The number is related to the network speed– 1000 is commonly 1,000 megabits per second

(or one gigabit/sec)– 10G would be 10 gigabits per second

• BASE (baseband)– Single frequency using the entire medium– Broadband uses many frequencies, sharing the medium

• Media type– T is twisted pair copper, F is fiber– SX would be short wavelength light

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