Abstract
The ability of a network which keeps services running regardless of a link or node failure is called Network resilience. In this research the provisioning of resilience against network failures in Multiprotocol Label Switching (MPLS) based networks is investigated. Due to the ever increasing amount of data transported over a single link failures can cause tremendous loss of data, loss of reputation, and loss of revenue for the network operators. Therefore the network has to be resilient against failures. It must be capable to detect the failure and recover affected services in an efficient manner, ideally without the services realizing the outage and disconnecting. Due to the complexity of the transport network architectures sophisticated resilience mechanisms are needed. This research is focused on techniques that can be used to reroute traffic faster in case of a failure in a network with respect to network topology, available resources, requirements of the network and the requirements of users.