10 Gigabit Ethernet

Router 10 Gigabit Ethernet ports and three physical layer module types 10 Gigabit Ethernet (XGbE or 10GbE) is the latest (year 2002) and faster Ethernet standards. IEEE 802.3ae defines an Ethernet version with a nominal 10 Gbit / s speed, ten times faster than gigabit Ethernet.

The 10 Gigabit Ethernet standard contains seven media types for LAN, MAN and WAN. It has been specified in the IEEE 802.3ae supplementary standard and will be included in a future revision of the IEEE 802.3 standard.

There are different standards for the physical level (PHY). The letter X means 8B / 10B coding and is used for copper interfaces. The most common optical variety is called LAN PHY, used to connect routers and switches to each other. Although it is called as LAN it can be used with 10GBase-LR and 10GBase-ER up to 80 km. LAN PHY uses a line speed of 10.3 Gbit / s and encoding 66B (1 transition every 66 bits at least). WAN PHY (marked with a W) encapsulates Ethernet frames for transmission over an SDH / SONET STS-192c channel.

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