Abstract :
Summary form only given. Core-network provisioning and restoration structures are currently under siege. With the floodgates of broadband access about to open wide, this siege is about to intensify. Despite recent enthusiasm for terabit routers as a means of addressing this need, it has become apparent that in fact a core circuit-switching layer that interconnect WDM systems with data-networking devices is, for economic and scaling reasons, the clear architecture of choice. However, traditional circuit-switching approaches lack the signaling and control features that are essential for delivering real-time network services. We discuss the rich emerging arsenal of techniques by which Internet protocol (IP)-centric signaling and control mechanisms, together with sophisticated routing algorithms, can be harnessed to supply the critical signaling and control features needed in evolving optical core networks.
Keywords :
Internet; access protocols; broadband networks; optical interconnections; telecommunication network management; telecommunication network routing; telecommunication signalling; wavelength division multiplexing; IP-centric signaling; Internet protocol centric signaling; Internet protocol control mechanisms; broadband access; circuit-switching approaches; control mechanisms; core circuit-switching layer; core-network provisioning; data-networking devices; interconnect WDM systems; optical core networks; optical network control; optical network signalling; real-time network services; restoration structures; sophisticated routing algorithms; terabit routers; Integrated circuit interconnections; Intelligent networks; Optical control; Optical fiber networks; Routing; Signal restoration; Wavelength division multiplexing;
