Title :
Extending the flexgrid optical core towards the edges
Author :
Velasco, L. ; Ruiz, M. ; Castro, A. ; Comellas, J.
Author_Institution :
Univ. Politec. de Catalunya (UPC), Barcelona, Spain
Abstract :
National IP/MPLS network have being designed on top of fixed-grid DWDM optical networks so to spread out covering large areas. Besides, multilayer IP/MPLS-over-DWDM networks take advantage from grooming to achieve high spectrum efficiency, filling the gap between users´ flows and wavelength channels´ capacity. The advent of the flexgrid technology providing a finer granularity makes possible to perform grooming also at the optical layer. We propose to flatten previous multilayer approaches and advance towards single layer networks consisting in a number of IP/MPLS areas connected through a flexgrid-based core network. A two-step procedure to design such flexgrid-based IP/MPLS national networks is proposed. In this paper, a future large flexgrid core network inter-connecting small areas is shown.
Keywords :
multiprotocol label switching; optical multilayers; wavelength division multiplexing; fixed-grid DWDM optical networks; flexgrid optical core; flexgrid-based core network; multilayer IP-MPLS-over-DWDM networks; national IP-MPLS network; optical layer; wavelength channels capacity; Computer vision; IP networks; Image motion analysis; Multiprotocol label switching; Nonhomogeneous media; Optical fiber networks; Flexgrid-based networks; IP/MPLS networks; Multilayer Network Planning;
Conference_Titel :
Transparent Optical Networks (ICTON), 2013 15th International Conference on
Conference_Location :
Cartagena
DOI :
10.1109/ICTON.2013.6602717