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FDDI provides a 100 Mbit/s optical standard for data transmission in local area network that can extend in length up to 200 kilometers (120 mi). [2] Although FDDI logical topology is a ring-based token network, it did not use the IEEE 802.5 Token Ring protocol as its basis; instead, its protocol was derived from the IEEE 802.4 token bus timed token protocol.
The first 2 port Bridge product (LANBridge 100) was introduced by that company shortly after. The company subsequently produced multi-port switches for both Ethernet and FDDI such as GigaSwitch. Digital decided to license its MAC Bridge patent in a royalty-free, non-discriminatory basis that allowed IEEE standardization.
With the advent of the IEEE 802 suite of standards, a Subnetwork Access Protocol (SNAP) header combined with an IEEE 802.2 LLC header is used to transmit the EtherType of a payload for IEEE 802 networks other than Ethernet, as well as for non-IEEE networks that use the IEEE 802.2 LLC header, such as FDDI. However, for Ethernet, Ethernet II ...
Token Ring and legacy Ethernet have some notable differences: Token Ring access is more deterministic, compared to Ethernet's contention-based CSMA/CD. Ethernet supports a direct cable connection between two network interface cards by the use of a crossover cable or through auto-sensing if supported. Token Ring does not inherently support this ...
Fast Ethernet is an extension of the 10-megabit Ethernet standard. It runs on twisted pair or optical fiber cable in a star wired bus topology , similar to the IEEE standard 802.3i called 10BASE-T , itself an evolution of 10BASE5 (802.3) and 10BASE2 (802.3a).
The physical-layer specifications of the Ethernet family of computer network standards are published by the Institute of Electrical and Electronics Engineers (IEEE), which defines the electrical or optical properties and the transfer speed of the physical connection between a device and the network or between network devices.
Ethernet Media Access Control Link Layer EOF: End Of Frame (HDLC, etc.) Link layer HDLC framing: ESS: Extended service set (Wi-Fi group) Wireless IEEE Std 802.11-2007: FCC: Federal Communications Commission (US) Organization US FCC: FCS: Frame check sequence (Ethernet) Link layer Ethernet Frame IEEE Std 802.3: FDDI: Fiber Distributed Data ...
original standard for Ethernet over fiber; uses any optical fiber with up to 4 dB/km attenuation and at least 150 MHz bandwidth; superseded by 10BASE-FL: 10BASE-FL: 802.3j-1993 (CL15/18) largely obsolete Fibre 850 nm: ST FDDI: 2k: 2 1 1 Nodes: 10BASE-FB: 802.3j-1993 (CL15/17) largely obsolete Fibre 850 nm: ST FDDI: 2k: 2 1 1 synchronous inter ...