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Evolution of backbone transport network architecture beyond 100G and Shannon limit

2013-12-06
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Since the emergence of telecommunications networks, backbone transmission networks have been in existence. In 1877, the second year after Bell invented the telephone, the first telephone line between Boston and New York was opened, 300 kilometers apart. In 1901, four years after the establishment of the \"Marconi Wireless Telegraph Co., Ltd.\", radio communication across the Atlantic Ocean was achieved between the United Kingdom and Newfoundland, with a distance of more than 3,000 kilometers. After more than 100 years of network changes, the development of backbone transmission networks has reached a new height, with line rates increased from 64Kb/s to 8Tb/s, and transmission distances increased from hundreds of roads to tens of thousands of kilometers, becoming a link connecting global communication networks. This article will analyze the challenges and development trends of backbone networks from the perspective of business changes.

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