Wavelength bypassed ring networks

Details Wavelength bypassed ring networks Wavelength bypassed ring networks

H - Electricity

04

L

H04L 12/42 (2006.01) H04B 10/20 (2006.01) H04J 14/02 (2006.01) H04Q 11/00 (2006.01)

Patent

CA 2217620

The invention is directed to the use of wavelength channels to bypass nodes in ring networks. For networks with a small number of nodes, direct node to node routes are provided without changing the physical layout of the fibre in the ring. Architectures providing complete transparent interconnections with extra capacity for heavily used routes on a portion of the ring are disclosed. For networks with a large number of nodes, underconnected networks provide a number of accelerated, direct routes between some of the nodes. Proposed architectures for underconnected networks and methods for self-routing the traffic are also provided.

L'invention porte sur l'utilisation de canaux optiques pour contourner les noeuds des réseaux en anneau. Dans les réseaux où les noeuds sont nombreux, des trajets allant d'un noeud à l'autre sont établis sans qu'il soit nécessaire de modifier la configuration matérielle des fibres de l'anneau. Des architectures à interconnexions complètement transparentes à capacité accrue pour des trajets à grand trafic dans une partie de l'annau sont divulguées. Dans les réseaux où les noeuds sont nombreux, des connexions sous-jacentes permettent d'obtenir un certain nombre de trajets directs accélérés entre certains des noeuds. Des architectures d'interconnexion sous-jacentes sont également divulguées pour l'auto-acheminement du trafic.

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