Handling Outdated Information in Optical PCE Environments
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The rapid emergence of new network scenarios and architectures, such as Data Centers Networks (DCNs), Path Computation Element (PCE), and Software Defined Networking (SDN), has refreshed some on-line routing-related problems, objective of many research efforts in the past. As a result, new scalable and efficient path computation algorithms are required to address particular characteristics and demands of on-line scenarios, such as those brought by inaccurate Network State Information (NSI), strongly affecting the overall blocking probability. In this paper, we propose a prediction-based PCE scheme, referred to as PPCE. PPCE is devised for highly dynamic network scenarios, aiming at reducing the amount of signaling messages as well as the blocking probability.
CitacióRamirez, W., Masip, X., Marin, E., Sanchez, S., Souza, V. Handling Outdated Information in Optical PCE Environments. A: International Conference on Optical Network Design and Modeling. "ONDM 2015: 19th International Conference on Optical Networking Design and Modeling: Pisa, Italy: May 11-14, 2015: proceedings book". Pisa: 2015, p. 39-44.