Methods and apparatus for optimizing utilization in reconfigurable optical add-drop mulitplexer based ring network
First Claim
1. A processor-implemented method for use in performing a circuit transition in accordance with an optical ring-based network, comprising the steps of:
- obtaining a first circuit layout and a second circuit layout for a given set of demands to be routed on the optical ring-based network; and
calculating by a processor a transition sequence plan useable to transition the network from the first circuit layout to the second circuit layout such that substantially no network service disruption occurs due to the circuit transition;
wherein the transition sequence plan is calculated by determining a minimum set of circuits that when moved from first positions in the first circuit layout result in a feasible transition sequence for remaining circuits in the first circuit layout.
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Accused Products
Abstract
Techniques are disclosed for generating a hitless migration plan to optimal state, given an optimal routing and wavelength assignment for demands. For example, a technique for use in performing a circuit transition in accordance with an optical ring-based network comprises obtaining a first (e.g., initial) circuit layout and a second (e.g., final) circuit layout for a given set of demands to be routed on the optical ring-based network. The technique then comprises calculating a transition sequence plan useable to transition the network from the first circuit layout to the second circuit layout such that substantially no network service disruption occurs due to the circuit transition. The transition sequence plan is calculated by determining a minimum set of circuits that when moved from first positions in the first circuit layout result in a feasible transition sequence for remaining circuits in the first circuit layout. Wavelength equivalence and demand equivalence properties may be applied individually or jointly.
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Citations
20 Claims
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1. A processor-implemented method for use in performing a circuit transition in accordance with an optical ring-based network, comprising the steps of:
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obtaining a first circuit layout and a second circuit layout for a given set of demands to be routed on the optical ring-based network; and calculating by a processor a transition sequence plan useable to transition the network from the first circuit layout to the second circuit layout such that substantially no network service disruption occurs due to the circuit transition; wherein the transition sequence plan is calculated by determining a minimum set of circuits that when moved from first positions in the first circuit layout result in a feasible transition sequence for remaining circuits in the first circuit layout. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. Apparatus for use in performing circuit transition in accordance with an optical ring-based network, comprising:
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a memory; and at least one processor coupled to the memory and operative to;
(i) obtain a first circuit layout and a second circuit layout for a given set of demands to be routed on the optical ring-based network; and
(ii) calculate a transition sequence plan useable to transition the network from the first circuit layout to the second circuit layout such that substantially no network service disruption occurs due to the circuit transition, wherein the transition sequence plan is calculated by determining a minimum set of circuits that when moved from first positions in the first circuit layout result in a feasible transition sequence for remaining circuits in the first circuit layout. - View Dependent Claims (13, 14, 15, 16)
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17. An article of manufacture comprising a machine-readable medium storing one or more programs for use in performing circuit transition in accordance with an optical ring-based network, the one or more programs when executed in a processor implementing a method comprising the steps of:
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obtaining a first circuit layout and a second circuit layout for a given set of demands to be routed on the optical ring-based network; and calculating a transition sequence plan useable to transition the network from the first circuit layout to the second circuit layout such that substantially no network service disruption occurs due to the circuit transition; wherein the transition sequence plan is calculated by determining a minimum set of circuits that when moved from first positions in the first circuit layout result in a feasible transition sequence for remaining circuits in the first circuit layout. - View Dependent Claims (18, 19, 20)
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Specification