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IEEE 802.3, a 10GBASE-T Ethernet standard ratified in June 2006 following four years of development, is considered a mature and worthy successor to the 100BASE-T and 1000BASE-T standards, which were ratified in 1995 and 1999, respectively. The marketplace is ready for a speed upshift from the network: commodity servers have ample CPU horsepower and IO-plane performance, and many applications are pushing the bandwidth requirements for both servers and the core data-centre network. However, the increased signal-processing requirements imposed by the 10GBASE-T channel mean that an early-generation 10GBASE-T Physical Transceiver (PHY) consumes significantly more power than a mature 1000BASE-T transceiver or conventional coax- or fiber-optic-based transceivers. Switch products face a relatively simple set of design tradeoffs as power improvements on 10GBASE-T transceivers drive denser 10Gbps switches.

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Format:HTML
Date:Jan 2008
Pages:4
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