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METHOD AND APPARATUS FOR TRACING PATHS IN SERVICE FUNCTION CHAINS

  • US 20180131590A1
  • Filed: 01/11/2018
  • Published: 05/10/2018
  • Est. Priority Date: 07/20/2015
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving a trace request packet at a service node in a service chain, the trace request packet comprising a service path identifier, a service index, and a service index limit;

    processing the trace request packet at the service node;

    comparing the service index to the service index limit;

    determining that the service index is greater than the service index limit;

    generating a trace response packet at the service node indicating that the service index is greater than the service index limit; and

    transmitting the trace response packet;

    wherein the trace response packet comprises service function information for each of a plurality of service nodes in the service chain.

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