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Routing methods, systems, and computer program products for using specific identifiers to transmit data

DC
  • US 10,389,625 B1
  • Filed: 08/10/2018
  • Issued: 08/20/2019
  • Est. Priority Date: 12/27/2012
  • Status: Active Grant
First Claim
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1. An apparatus, comprising:

  • a current node configured to be positioned in a label switching network, the current node including at least one non-transitory memory configured to store instructions, and one or more processors in communication with the at least one non-transitory memory, wherein the one or more processors is configured to execute the instructions to cause the current node to;

    receive, from a next node, information that is configured for use in identifying an identifier in a node-specific identifier space specific to the next node that identifies a particular node for the next node;

    map, based on the information, the identifier that identifies the particular node for the next node, to an identifier in a node-specific identifier space specific to the current node that identifies the particular node for the current node, the identifier that identifies the particular node for the current node having a meaning for the current node defined solely by the node-specific identifier space specific to the current node;

    store an association between the identifier that identifies the particular node for the next node, and the identifier that identifies the particular node for the current node;

    receive, from a previous node, data and a packet including a header;

    identify, using the header of the packet, the identifier that identifies the particular node for the current node;

    identify a network path for transmitting the data to the particular node, the network path including the next node;

    locate, based on the identifier that identifies the particular node for the current node, the association;

    map, based on the association, the identifier that identifies the particular node for the current node, to the identifier that identifies the particular node for the next node; and

    transmit, via a network interface of the current node, the data to the particular node via the next node included in the network path.

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