Resource reservation comparison of fault resilient routing schemes

Reliable delivery of network services is critically for numerous real-time applications, such as video conferencing, broadcast TV and content distribution, in which time sensitive content is delivered to a single or multiple destinations. Failure protection in connection-oriented networks can be realized using local protection schemes, such as fast reroute (FRR), or using end-to-end protection schemes, like redundant trees. In this paper we study the trade-offs between local and end-to-end protection schemes from several key aspects such as protection availability, management complexity and in particular the resource reservation efficiency of the two approaches.