Ethernet
Ethernet
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Ethernet refers to a family of standards that together define the physical and data link layers of LAN. The Institute of Electrical and Electronics Engineers (IEEE) has defined many Ethernet standards. IEEE has defined different standards for Ethernet at the physical layer on the basis of speed and types of cabling.
The name of IEEE standard for 100BASE-TX is IEEE 802.3. This is commonly known as Ethernet. It supports the maximum speed of 10Mbps. The cable type used in 10BASE-T is copper and it supports the maximum cable length of 100 meters.
The name of IEEE standard for 100BASE-TX is IEEE 802.3u. This is commonly known as Fast Ethernet. It supports the maximum speed of 100Mbps. The cable type used in 10BASE-TX is copper and it supports the maximum cable length of 100 meters.
The name of IEEE standard for 1000BASE-LX/SX is IEEE 802.3z. This is commonly known as Gigabit Ethernet. It supports at the maximum speed of 1000Mbps. The cable type used in 1000BASE-LX/SX is fiber and it supports the maximum cable length of 550 meters for SX and 5000 meters for LX.
The name of IEEE standard for 1000BASE-T is IEEE 802.3ab. This is commonly known as Gigabit Ethernet. It supports the maximum speed of 1000Mbps. The cable type used in 1000BASE-T is fiber and it supports the maximum cable length of 100 meters.
The most common types of Ethernet are summarized in the table below:
| Ethernet | 10-BASE-T | IEEE 802.3 | Copper | 10Mbps | 100 meters |
| Fast Ethernet | 100-BASE-TX | IEEE 802.3u | Copper | 100Mbps | 100 meters |
| Gigabit Ethernet | 100BASE-LX | IEEE 802.3z | Fiber | 1000Mbps | 5000 meters |
| Gigabit Ethernet | 100BASE-SX | IEEE 802.3z | Fiber | 1000Mbps | 550 meters |
| Gigabit Ethernet | 1000BASE-T | IEEE 802.3ab | Copper | 1000Mbps | 100 meters |
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