Wavelength and path assignment in wavelength division multiplexed ring networks
First Claim
1. A method of establishing a service connection between first and second network nodes in a WDM optical network for a plurality of network users:
- receiving, from each network user, user-preferences prioritizing a plurality of decision criteria defining preferable characteristics of the service connection, wherein the user-preferences rank the plurality of decision-criteria;
selecting, using a prescribed algorithm, a path and a channel wavelength at which information is to be conveyed over the path between the first and second nodes based on the plurality of decision criteria as prioritized in accordance with the user-preferences; and
interconnecting the first and second network nodes over the selected path with the selected channel wavelength,wherein the plurality of decision-criteria include in-service wavelengths, path length, in-service TRP savings, fragmentation and utilization rate.
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Abstract
A method is provided for establishing a service connection between first and second network nodes in a WDM optical network for a plurality of network users. The method begins by receiving, from each network user, user-preferences prioritizing a plurality of decision criteria defining preferable characteristics of the service connection. Next, a prescribed algorithm is used to select a path and a channel wavelength at which information is to be conveyed over the path between the first and second nodes. The selection is based on the plurality of decision criteria as prioritized in accordance with the user-preferences. Finally, the first and second network nodes are interconnected over the selected path with the selected channel wavelength.
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Citations
12 Claims
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1. A method of establishing a service connection between first and second network nodes in a WDM optical network for a plurality of network users:
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receiving, from each network user, user-preferences prioritizing a plurality of decision criteria defining preferable characteristics of the service connection, wherein the user-preferences rank the plurality of decision-criteria; selecting, using a prescribed algorithm, a path and a channel wavelength at which information is to be conveyed over the path between the first and second nodes based on the plurality of decision criteria as prioritized in accordance with the user-preferences; and interconnecting the first and second network nodes over the selected path with the selected channel wavelength, wherein the plurality of decision-criteria include in-service wavelengths, path length, in-service TRP savings, fragmentation and utilization rate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification