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Methods and apparatus to track changes to a network topology

  • US 10,733,245 B2
  • Filed: 01/03/2019
  • Issued: 08/04/2020
  • Est. Priority Date: 09/30/2014
  • Status: Active Grant
First Claim
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1. A topology tool to track a change to a network topology, the topology tool comprising:

  • a message processor to, in response to a reporting message generated by a software defined network controller, identify a unique identifier (UID) associated with a network element to be subject to a topology change event, the reporting message including topology change information corresponding to the topology change event scheduled to occur at a future time;

    a database search tool to;

    search a first topology database for a first post-confirmation data record corresponding to the UID;

    in response to the first post-confirmation data record missing from the first topology database, search a second topology database for a first pre-confirmation data record corresponding to the UID;

    a database controller to generate a second pre-confirmation data record in response to the first pre-confirmation data record missing from the second topology database; and

    a message generator to generate a confirmation-seeking message to confirm occurrence of the topology change event after the first pre-confirmation data record is stored in the second topology database, the message generator to generate the confirmation-seeking message by sending a loopback address of the network element subject to the topology change event, a type of the topology change event, a status of the topology change event, and information indicating a position of the network element within the network topology.

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