Segment routing over label distribution protocol
AssigneeCisco Technology, Inc.
InventorsAhmed R. Bashandy, Clarence Filsfils, David D. Ward
Life of this patent
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Abstract
An apparatus and method is disclosed for segment routing (SR) over label distribution protocol (LDP). In one embodiment, the method includes a node receiving a packet with an attached segment ID. In response, the node may attach a label to the packet. Thereafter, the node may forward the packet with the attached label and segment ID to another node via a label switched path (LSP).
Claims20
A method comprising:
- a node determining services that can be provided by the node;
- creating segment identifiers (IDs) that are mapped to respective services that can be provided by the node;
- generating advertisements containing service IDs associated with services that can be provided by the node;
- and
- sending the advertisements into a network.
An apparatus comprising:
- one or more line cards configured to perform processing of packets for communication of the packets in a network;
- and
- a processor coupled to the one or more line cards, wherein the processor is configured to perform operations including:
- determining services that can be provided by the apparatus;
- creating segment identifiers (IDs) that are mapped to respective services that can be provided by the apparatus;
- generating advertisements containing service IDs associated with services that can be provided by the apparatus;
- and
- causing the advertisements to be sent by one of the one or more line cards into the network.
A computer readable memory for storing instructions that are executable by a processor in a node, wherein the processor implements a method in response to executing the instructions, the method comprising:
- determining services that can be provided by the node;
- creating segment identifiers (IDs) that are mapped to respective services that can be provided by the node;
- generating advertisements containing service IDs associated with services that can be provided by the node;
- and
- sending the advertisements into a network.
Dependencies are inferred from the claim text.