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Label switched path reporting

  • US 9,992,105 B2
  • Filed: 03/30/2016
  • Issued: 06/05/2018
  • Est. Priority Date: 03/30/2016
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving, by a first network device that is not an ingress label edge router (LER) for a traffic engineering label switched path (TE LSP) and from a second network device, an LSP path signaling message that includes a route object having a first indication of at least a sub-path of a path for the TE LSP through a network;

    generating, by the first network device in response to the LSP path signaling message and based at least in part on the route object, an LSP path report message that includes a second indication of the at least the sub-path of the path for the TE LSP; and

    sending, by the first network device to a path computation element (PCE) for a path computation domain that includes the ingress LER for the TE LSP, the LSP path report message to notify the PCE of the at least the sub-path of the path for the TE LSP.

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