With the lower threshold of network attacks and social development s increasing dependence of information systems, traditional network security technologies face enormous challenges, survivability is getting widespread attention. Diversity is one of the most important means to improve the system survivability. But the diversity in practice only simple to use, there is not well diversified
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With the rapid development of Internet and Computer, data traffic on Internet increases explosively, so does demand of broad band services, such as IP,VOD,E2C,video conference. Under this circumstance, the existing transmission network can not meet the requirements of network development. For the reason that IP traffic is uncertain, burst, unpredictable, as well as the demand
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As optical network expands rapidly, multi-layer and multi-domain structure become the development trend of large scale optical network. Multi-layer and multi-domain structure can promote the efficiency and flexibility of network supervisory control, but it’s special structure cause trouble for the process of routing based on the strategy and constraint conditions. IETF work group has summarized
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The emergence of Intelligent Optical Network (ION) shows out the obvious direction for the development of the next generation optical transportation network. Its outstanding transmission performance and network management mechanisms not only satisfied the needs of existing services, but also provide excellent support for the new-coming data traffics with bursty and statistical multiplexing characteristics. Rapid
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In the 21 century, Optical network as the major component of transmission network is developing rapidly. In recent years, with the rise of a large number of new businesses as well as the reduction in communication charges, making the profitability of the major carriers continued to decline. Network design and optimization to reduce network costs
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Intelligent optical network (ION) imports GMPLS based control plane which supports multi-granularity switching and dynamic bandwidth resourse provisioning capability. It introduced intelligence and flexibility into optical networks. Survivability of multi-granularity optical network (MG-ON) has been widely agreed as one improtant technology in ION. This thesis studied survivability of MG-ON with traffic grooming ability via theoretical
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Survivability is the key technology in intelligent optical network. In Multi domain andmulti layer network environment, survivability issue has become more complex due to thecoordination mechanism between different layers, constraints of multi domain topology, andinvisible routing information, etc. This thesis presents a comprehensive and in depth research on thekey technologies of survivability in multi domain
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Survivability is the key technology in intelligent optical network. In Multi domain andmulti layer network environment, survivability issue has become more complex due to thecoordination mechanism between different layers, constraints of multi domain topology, andinvisible routing information, etc. This thesis presents a comprehensive and in depth research on thekey technologies of survivability in multi domain
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With the rapid development of optical communication technology, especially the large-scaled deployment of optical network equipments and the wider application of various optical communication technologies, separated-domains management becomes an inevitable choice. In new generation intelligent optical networks based on wavelength devision multiplex(WDM), a large network is divided by the type of the equipments, the operators
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The 21st century is a rapid development century about digitized and informationization.It takes on so many multimedia services that the traffic in the network grows at railway speed. Thereby it is obligatory to enlarge traffic of the backbone network..With all the services much dependency on the network system, the network survivability becomes the focus which
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