40G与100G供应商调查报告.docVIP

Who Makes What: 40- 100-Gbit/s Systems 40/100G transmission embraces a range of technologies and has potentially wide applications – from transoceanic networks, through the metro, and on into equipment backplanes – so its long-term impact is likely to be considerable and widespread. For this Who Makes What, however, the main interest is taken to be telecom network transport applications, which means essentially: 40G Sonet/SDH (OC768/STM256) and the higher-rate ITU-T OTNs (OTU3/OTU4) Longer-range versions of 40 and 100G Ethernet. For more on 40/100G in equipment practice, especially ATCA, etc., see 40- 100-Gbit/s Technology Components. The list of operators and carriers now moving to, or with, some 40G implementations now contains some big names (see Table 1 for some recent examples reported by Light Reading), although not everyone is convinced by the 40G argument (see Page 4: Sticky Questions). In contrast, 100G is still largely experimental or trialing, but implementations are vaguely beginning, as witnessed by financial exchange NYSE Euronext and Ciena Corp. (Nasdaq: CIEN) announcing, in March 2009, plans to implement 100G networks to support NYSE Euronext’s new data centers in the greater New York and London metropolitan areas during 2010. Table 1: Recent 40G Network Implementations Reported by Light Reading Carrier/operator Location/date Implementation AboveNet USa/May 2009 40G metro service in 15 US markets Bell Canada Canada/September 2008 40G optical backbone network China Telecom China/August 2008 40G transmission network China Unicom China/December 2008 40G WDM transport network Deutsche Telekom Germany/July 2008 40G DWDM core network KPN Belgium/September 2008 40G upgrade to optical backbone network Lightower Fiber Networks USA/ June 2009 40G bandwidth service for carriers and large enterprises Mediacom Communications USA/December 2008 40G upgrade to regional network supporting triple-play services Neos UK/March 2008 40G network for delivery of band