Ausfallsichere mehrschichtige Netze mit dynamischen Link-Ressourcen

This dissertation introduces a new business model, called the bandwidth distributor, which is enabled by the introduction of intelligent transport networks. The distributor, a network provider without any transport resources of its own, connects its locations by automatically leasing channels on demand from transport network operators. Based on a channel lease pricing model this thesis presents contributions to a foresighted, cost-minimizing channel leasing behavior between two network locations. By means of extensive simulations and optimizations we show that our specially developed routing mechanism achieves further cost savings in networked systems. In addition, we design and compare concepts to protect connections against even multiple transport span failures. The results of our investigations illustrate that a fast and resource efficient failure recovery can be guaranteed by a set of defined interactions between the network layers.