Presenter: Georg Carle, TU München
The reach of the Internet extends further into the way our society functions such as it has become a critical infrastructure. The cost of failures is significant. Aspects of network resilience, e.g., fault-tolerant networking and intrusion detection systems have been studied and practiced to great effect. However, the Internet is still vulnerable to malicious attacks, human mistakes, such as misconfigurations, and a range of environmental challenges. One of the reasons is the lack of a holistic view of the resilience problem, leading to separate, inappropriate and difficult to manage solutions. In this talk, we present a systematic approach to building resilient networked systems. We first study fundamental framework elements at the conceptual level such as metrics, policies, and information sensing mechanisms. Their understanding drives the design of a distributed, multi-level architecture that lets the network defend itself against, detect, and dynamically respond to challenges. We then present how this framework can be deployed in different networking environments: opportunistic networks, wireless mesh networks and finally network services such as IP telephony or web.