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Methods and apparatus to track changes to a network topology

  • US 10,210,258 B2
  • Filed: 10/23/2017
  • Issued: 02/19/2019
  • Est. Priority Date: 09/30/2014
  • Status: Active Grant
First Claim
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1. An apparatus to track a change to a network topology, the apparatus comprising:

  • memory including machine readable instructions; and

    a processor to execute the instructions to perform operations including;

    in response to a reporting message generated by a software defined network controller, the reporting message including topology change information corresponding to a topology change event scheduled to occur at a future time, the reporting message also identifying the future time;

    storing, in a topology database, a pre-validation data record reflecting the occurrence of the topology change event, the pre-validation data record indicating the occurrence is not validated; and

    generating a validation seeking message to validate occurrence of the topology change event, the validation seeking message transmitted to a network device to be subject to the topology change event, the validation seeking message generated at least one of at or after the future time; and

    in response to a validation message validating the occurrence of the topology change, storing a post-validation data record in the topology database, the validation message received from the network device.

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