|
100 Gigabit Ethernet (100GbE) and 40 Gigabit Ethernet (40GbE) are groups of computer networking technologies for transmitting Ethernet frames at rates of 100 and 40 gigabits per second (100 and 40 Gbit/s), respectively. The technology was first defined by the IEEE 802.3ba-2010 standard and later by the 802.3bg-2011, 802.3bj-2014, and 802.3bm-2015 standards.〔(【引用サイトリンク】 url = http://www.ieee802.org/3/bm/ )〕 ==History== On July 18, 2006, a call for interest for a High Speed Study Group (HSSG) to investigate new standards for high speed Ethernet was held at the IEEE 802.3 plenary meeting in San Diego.〔(【引用サイトリンク】title=IEEE Forms Higher Speed Study Group to Explore the Next Generation of Ethernet Technology )〕 The first 802.3 HSSG study group meeting was held in September 2006.〔(【引用サイトリンク】title=IEEE 802.3 Higher Speed Study Group )〕 In June 2007, a trade group called "Road to 100G" was formed after the NXTcomm trade show in Chicago. On December 5, 2007, the Project Authorization Request (PAR) for the P802.3ba 40 Gbit/s and 100 Gbit/s Ethernet Task Force was approved with the following project scope:
The 802.3ba task force met for the first time in January 2008. This standard was approved at the June 2010 IEEE Standards Board meeting under the name IEEE Std 802.3ba-2010.〔(【引用サイトリンク】title=IEEE P802.3ba 40Gb/s and 100Gb/s Ethernet Task Force )〕 The first 40 Gbit/s Ethernet Single-mode Fibre PMD study group meeting was held in January 2010 and on March 25, 2010 the P802.3bg Single-mode Fibre PMD Task Force was approved for the 40 Gbit/s serial SMF PMD. The scope of this project is to add a single-mode fiber Physical Medium Dependent (PMD) option for serial 40 Gb/s operation by specifying additions to, and appropriate modifications of, IEEE Std 802.3-2008 as amended by the IEEE P802.3ba project (and any other approved amendment or corrigendum). On June 17, 2010, the IEEE 802.3ba standard was approved 〔 In March 2011 the IEEE 802.3bg standard was approved.〔 On September 10, 2011, the P802.3bj 100 Gbit/s Backplane and Copper Cable task force was approved.〔 The scope of this project is to specify additions to and appropriate modifications of IEEE Std 802.3 to add 100 Gb/s 4-lane Physical Layer (PHY) specifications and management parameters for operation on backplanes and twinaxial copper cables, and specify optional Energy Efficient Ethernet (EEE) for 40 Gb/s and 100 Gb/s operation over backplanes and copper cables. On May 10, 2013, the P802.3bm 40 Gbit/s and 100 Gbit/s Fiber Optic Task Force was approved.〔 This project is to specify additions to and appropriate modifications of IEEE Std 802.3 to add 100 Gb/s Physical Layer (PHY) specifications and management parameters, using a four-lane electrical interface for operation on multimode and single-mode fiber optic cables, and to specify optional Energy Efficient Ethernet (EEE) for 40 Gb/s and 100Gb/s operation over fiber optic cables. In addition, to add 40 Gb/s Physical Layer (PHY) specifications and management parameters for operation on extended reach (>10 km) single-mode fiber optic cables. Also on May 10, 2013, the P802.3bq 40GBASE-T Task Force was approved. Specify a Physical Layer (PHY) for operation at 40 Gb/s on balanced twisted-pair copper cabling, using existing Media Access Control, and with extensions to the appropriate physical layer management parameters. On June 12, 2014, the IEEE 802.3bj standard was approved.〔 On February 16, 2015, the IEEE 802.3bm standard was approved.〔(【引用サイトリンク】url=http://www.ieee802.org/3/100GNGOPTX/email/msg01408.html )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「100 Gigabit Ethernet」の詳細全文を読む スポンサード リンク
|