Multiterabit networks

SEMINAR ON Multi-terabit networks : Exploding demand for broadband networks data in applications of photonics continue to drive towards increasing the capacity of the network to the fiber backbone and flexible optical networks. Already commercial TB / s (per fiber) transmission systems have been published, and it can be assumed that the next few years, we begin to limit the bandwidth of 50 THz fiber is in Silca. Efficient use of bandwidth will be one of the challenges for photonics research. Since communication is dominated by the data, we can expect that the network will consist of a package of moves to multi-terabit the total traffic on the edge of the network and cross-connected wavelength granularity and tens of terabits the entire nucleus.

Infrastructure to handle Internet traffic that doubles every six months, consists of two complementary parts: a high-speed switches, point-to-point connectivity and high-capacity routers. Dense Wave Division Multiplexing (DWDM) technology, which enables the transfer of different wavelengths of the same optical media, allows the optical point-to-point to about 10 terabits per second by 2008. However, the rapid growth of Internet traffic, combined with the ability to use fast optical links threatens to cause a bottleneck switches and routers.

Multi-terabit packet switched networks will require scheduling algorithms and high performance architectures. With port densities and data rates growing at an unprecedented rate, future regimes priority scheduling may be necessary to pragmatically scale against the ability of multi-terabit. In addition, support for strict QoS for various charges that characterize the emerging multimedia Internet traffic will increase. Continuous improvements in VLSI and optical technologies will stimulate innovative solutions to complex packet scheduling tasks.


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