Title :
Management-augmented stateless PCE for Wavelength Routed Optical Networks
Author :
Castoldi, Piero ; Paolucci, Francesco ; Giorgetti, Alessio ; Cugini, Filippo ; Valcarenghi, Luca ; Huang, Shaowei ; Kitayama, Ken-ichi
Author_Institution :
Scuola Superiore Sant´´Anna, Pisa
Abstract :
Two stateless path computation element (PCE) implementations to be used in GMPLS-based wavelength routed optical networks (WRONs) are discussed (fully stateless PCE, F-SL-PCE, and contention avoidance stateless PCE, CA-SL-PCE). The proposed CA-SL-PCE implementation exploits static management information for avoiding resource contentions among subsequent lightpath requests, while preserving network scalability. Simulation results show the capability of CA-SL-PCE implementation in strongly reducing resource contentions, thus resulting in a significant reduction of the overall blocking probability.
Keywords :
multiprotocol label switching; optical fibre networks; GMPLS; generalized multiprotocol label switching; management-augmented; network scalability; overall blocking probability; stateless path computation element; wavelength routed optical networks; Computational modeling; Computer network management; Computer networks; Content management; Information management; Optical computing; Optical fiber networks; Resource management; Scalability; Wavelength routing; PCE; contention avoidance; management plane; stateless;
Conference_Titel :
Transparent Optical Networks, 2008. ICTON 2008. 10th Anniversary International Conference on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-2625-6
Electronic_ISBN :
978-1-4244-2626-3
DOI :
10.1109/ICTON.2008.4598646
