|
CANARIE is a Canadian government-supported non-profit corporation, founded in 1993, which maintains a set of leased wide area network links for the transfer of very large data files. The core network consists of 19000 km of fibre optic cable capable of speeds as high as 100 Gbit/s but generally operated at 10 Gbit/s. In 2008, it was the second fastest national network in the world, behind the United States.〔("Core Capacity" ), CANARIE〕 The network is used primarily for education and research bodies across Canada, with links to similar networks at the provincial level or in other countries. The network was originally called CA *Net or CAnet, and the company name was originally an acronym for Canadian Network for the Advancement of Research, Industry and Education. == History == The original CAnet was created in 1990 with support from the National Research Council. It was in 1993 that CANARIE was involved in its operations as the network had upgraded its links to 56 kbit, to 10 Mbit/s in 1995, and then later to 20 Mbit/s. It had 100 Mbit/s aggregate capacity in 1996, and the same year the National Test Network (NTN) project introduced ATM. In 1997, the company Bell Advanced Communications (later Bell Nexxia, now part of Bell Canada) was given operating control over the network operations. The CAnet II was launched based on NTN links and capacities, OC-3 (155 Mbit/s) at the core. At exactly the same time, Sympatico "DSL" service started, and appeared to use the same links. In 1998, CANARIE deployed CA *Net 3, the world's first national optical Internet research and education network. The planned capacity of the network was 40 Gbit/s. In 2002, the Government of Canada committed $110 million to CANARIE to build and operate CAnet 4. CAnet 4, yields a total initial network capacity of between 160 Gbit/s and 320 Gbit/s, or four and eight times its predecessor. CAnet 4 is based on OC-192 optical circuits. CANARIE also funds research and development projects on a competitive basis; these projects must be carried out by Canadian companies in Canada. One of the technologies CANARIE is developing is User Controlled Light Path (UCLP) switching. At the SuperComputing conference in Seattle, WA, in November 2011, CANARIE participated in the transfer of 1 petabyte of data between the California Institute of Technology and the University of Victoria at a combined rate of 186 Gbit/s, setting a world record.〔(CNET News )〕 In February 2012, CANARIE added a Content Delivery Service, to provide research and educational (R&E) institutions with faster access to Internet-based content, like learning-delivery systems and cloud-computing services.〔(CANARIE Press Release )〕 The Content Delivery Service is enabled through settlement-free peering, in which organizations choose to make their Internet content available at no charge. 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「CANARIE」の詳細全文を読む スポンサード リンク
|
