IEEE group settles on faster Ethernet plans

A technical group working on the next generation of Ethernet has agreed to disagree and will now work on a single standard that covers both 40Gbps and 100Gbps speeds. The Higher Speed Study Group (HSSG), part of the IEEE (Institute of Electrical and Electronics Engineers), made the decision last week at its meeting in San Francisco after months of debate between backers of the two speeds. If the IEEE approves the move late this year as expected, a standard may be completed by mid-2010, said John D'Ambrosia, chair of the HSSG.

Ethernet has sped up by a multiple of 10 several times, from 10Mbps to 100Mbps and ultimately from 1Gbps to 10Gbps, the current fastest version. Some HSSG members backed a similar boost this time and that 100Gbps plan appeared to have won out late last year. But others pushed for a 40Gbps standard. Different applications were at the heart of the disagreement, according to D'Ambrosia. The need for speed is growing everywhere, but at different rates. While the data output of servers doubles roughly every 24 months, the amount of traffic on carrier networks is doubling every 18 months, according to D'Ambrosia. Members more interested in faster server-to-switch applications pushed for a 40Gbps goal, while those aiming at network aggregation and backbones favored 100Gbps. The higher speed means more expensive and power-hungry equipment.

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News source: InfoWorld

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