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In this paper, we investigate failure recovery requirements for GMPLS-based control planes. To this end, we firstly identify major protocol disruptions due to connectivity outages in the control plane. This allows the derivation of a new parameter, which quantifies such disruptions thus providing a figure of merit for performance evaluation. As the main contribution, we propose and validate different control plane topologies over a meshed transport network scenario. In particular, through simulation results, we initially provide comparison amongst them from a resilience viewpoint. Secondly, we focus on certain network resilience requirements and we discuss the suitability of either IP rerouting or dedicated backup control link protection as the failure recovery mechanism.
Transparent Optical Networks, 2008. ICTON 2008. 10th Anniversary International Conference on (Volume:3 )
Date of Conference: 22-26 June 2008