2026-04-17T04:12:35Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/1123382026-02-09T08:21:00Zcom_2072_1033col_2072_452950

urn:hdl:2117/112338 Handling Outdated Information in Optical PCE Environments Ramirez Almonte, Wilson Masip Bruin, Xavier Marín Tordera, Eva Sánchez López, Sergio Souza, Vitor Barbosa Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors Telecommunication--Traffic Telecomunicació -- Tràfic 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. Postprint (published version) 2015 Conference report http://ieeexplore.ieee.org.recursos.biblioteca.upc.edu/stamp/stamp.jsp?arnumber=7127271 http://creativecommons.org/licenses/by-nc-nd/3.0/es/ Restricted access - publisher's policy Attribution-NonCommercial-NoDerivs 3.0 Spain