Study On Network Survivability

Network Survivability breaks limits of traditional network security concepts, and emphasizes the abilities of network and information systems to achieve their main missions in a timely manner, while they are suffering from attacks, faults, or accidents. Main idea of survivability is that the systems can achieve their main missions, and timely recovery the damaged services, even after intrusions succeed, the main components are damaged or destroyed. Network survivability has become a new direction of studies on network security.Firstly, this dissertation studies the interrelated domains of network survivability, including backgrounds, main differences from traditional network security concepts, definition elements, applying domains, common acknowledgements, developing trends, implementing methods, etc, and builds a systematic theory framework of studies on network survivability. Secondly, under the direct of these theories discussed above, this dissertation analyses the security shortcomings of formal network services model, and proposes a survivable services model. Finally, this dissertation discusses system design, module design, and potential mends & expands in details.