Thursday, April 15, 2010

Switching Optical Networks

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All Three basic optical switching technologies in WDM networks have their defaults, so in recent years, some researchers turn to optimizing network performance by collaboratively combining the strengths of basic optical switching technologies and avoiding/reducing their weaknesses as much as possible.Consequently, three types of hybrid architectures are identified—Client-Server, Paraell and Integrated。However, these hybrid models also have problems such as, virtual topology design, network realization, efficient utilization of network resources, and etc。Based on these wedding gowns dresses situations, this thesis proposes novel hybrid network architecture, named Cycle-based Hybrid Switching Optical Networks(c-HyLabs). C-HyLabs can efficiently support bursty traffic patterns of current networks. It integrates highly efficient transportation of Optical Circuit Switching with statistical multiplexing of Optical Burst Switching. c-HyLabs could not only reduce the strain on packet forwarding of new shoes 2010 traditional point to point WDM solutions to relieve electronic bottleneck, but also accommodate bursty traffic and achieve better bandwidth efficiency than all-optical wavelength new wedding dresses switching networks (i.e.cheap evening dresses OCS networks). This chapter first introduces the overall architecture of c-HyLabs。Then c-HyLabs’s node design and implementation will be illustrated in the next chapter when we talked about the c-HyLabs multicast vsheme. One typical feature of c-HyLabs is its virtual topology design approachesdiscount wedding gowns.Specifically, the virtual topology of OBS part is a ring. Ring topology can sustain connectivity of networks while occupying rather few wavelength resources, and also have natural self-heal capability.
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