Quality of resilience in IP-based Future Internet communications

Future Internet (Next Generation Network, or Internet 3.0) is a further step in evolution of the Internet. The research activities related to Future Internet cover a wide spectrum of topics including: network architectures (protocols), network technologies, applications, etc. NGN assumes one basic network protocol (IPv6), Quality of Service (QoS) provided by IP-based infrastructure, improved signaling, improved security and other functionalities. In this paper we assume the utilization of Differentiated Services (DiffServ) functionality. In particular, we propose a model of providing the differentiated levels of service resilience. Such solution seems reasonable, since not every service requires the same level of protection. In particular, we concentrate on protecting the flows against failures being the result of malicious human activities. Results of simulation provide a compromise between the amount of capacity needed to guarantee protection, and the number of connections broken after failures.