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The New Generation Carrier Network… - My news blog

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The New Generation Carrier Network…

With more hardware technical breakthrough, people are attempting to further increase the number of wavelength to up to 1000 and the capacity per wavelength up to 100 Gb/s. In the near future, it can be foreseen that each fibre will be more efficiently utilized. Fibre communication techniques have been widely deployed today’s long-haul backbone transport networks and metro area networks. This technique is now penetrating the access networks based on so-called Fibre To The Home (FTTH) technology, hoping to allow each home to be cheaply connected by a fibre, so as to provide a huge amount capacity to support the future multimedia triple-play services such as IPTV, VoIP, Internet game, etc. It can be expected that in the future fibres will be ubiquitous ranging from a backbone network, a community network, to every home, and the bandwidth will not be a stressed constraint to continue annoying users any more.Slimmer network layer architecture Besides the huge increment of network capacity, we are also seeing that the network layer architecture of the today’s network becomes slimmer and slimmer. Such a change again can be attributed to the traffic change in the today’s network. Since the data traffic has dominated today’s communication networks, the traditional network layer architecture that was designed for the past voice-traffic can not efficiently fit today’s data traffic. A more effective layer architecture is necessary to efficiently carry today’s data traffic. The most traditional network layer architecture contains at least four layers to include (1) optical WDM layer, (2) SDH/SONET layer, (3) ATM, and (4) IP/MPLS layer.

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