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At the time that the 10 Gigabit Ethernet standard was developed, interest in 10GbE as a wide area network (WAN) transport led to the introduction of a WAN PHY for 10GbE. The WAN PHY was designed to interoperate with OC-192/STM-64 SDH/SONET equipment using a light-weight SDH/SONET frame running at 9.953 Gbit/s.
A 10 Gigabit Ethernet interface, known as XAUI, was developed to extend the operational distance of XGMII and reduce the number of interface signals. A smaller variant called the Apple Attachment Unit Interface (AAUI) was introduced on Apple Macintosh computers in 1991, and was phased out by 1998.
Gigabit Ethernet was the next iteration, increasing the speed to 1000 Mbit/s. The initial standard for Gigabit Ethernet was produced by the IEEE in June 1998 as IEEE 802.3z , and required optical fiber . 802.3z is commonly referred to as 1000BASE-X, where -X refers to either -CX, -SX, -LX, or (non-standard) -ZX.
The Nexus B22FEX offer 16 x 10 Gbase-KR internal 10 Gbit/s link to each blade-server interface and up to 8 SFP+ ports for uplink with a Nexus 5010, 5548 or 5596 switch. The maximum distance between the FEX and the mother-switch is 3 kilometer when it is only used for TCP/IP traffic and 300 meter when carrying also FCoE traffic.
A network switch (also called switching hub, bridging hub, Ethernet switch, and, by the IEEE, MAC bridge [1]) is networking hardware that connects devices on a computer network by using packet switching to receive and forward data to the destination device.
The original QSFP document specified four channels carrying Gigabit Ethernet, 4GFC (FiberChannel), or DDR InfiniBand. [52] 40 Gbit/s (QSFP+) QSFP+ is an evolution of QSFP to support four 10 Gbit/s channels carrying 10 Gigabit Ethernet, 10GFC FiberChannel, or QDR InfiniBand. [53] The 4 channels can also be combined into a single 40 Gigabit ...