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NETWORK TOPOLOGY OPTIMIZATION WITH FEASIBLE OPTICAL PATHS

  • US 20160191194A1
  • Filed: 06/30/2015
  • Published: 06/30/2016
  • Est. Priority Date: 12/29/2014
  • Status: Active Grant
First Claim
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1. A method comprising:

  • obtaining, by a management device of a multi-layer network comprising a network layer and an underlying transport layer, a plurality of candidate links, wherein each candidate link of the plurality of candidate links is associated with an optical path in the transport layer;

    determining, by the management device based at least on optical network data that describes optical characteristics of fibre links of the transport layer, each candidate link of the plurality of candidate links that has a feasible optical path;

    determining, by the management device, a plurality of filtered candidate links comprising each candidate link determined to have a feasible optical path;

    determining, by the management device, a first solution comprising a network topology for the network layer that includes a first selected subset of the filtered candidate links;

    determining, by the management device after generating a modified network topology based at least on the network topology, a second solution comprising the modified network topology for the network layer that includes a second selected subset of the filtered candidate links; and

    outputting, by the management device, topology data for one of the first solution or the second solution having a lowest total cost, the lowest total cost including a total resource cost to the network for the one of the first solution or the second solution.

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