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Network system and network flow tracing method

DC
  • US 9,560,177 B2
  • Filed: 03/17/2016
  • Issued: 01/31/2017
  • Est. Priority Date: 02/17/2011
  • Status: Active Grant
First Claim
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1. A switch apparatus, comprising:

  • a storage storing a table, the table including rules and actions corresponding to the rules; and

    a controller comprising;

    a memory storing instructions; and

    a processor configured to execute the instructions to;

    receive the rules and the actions from a control apparatus;

    identify, based on the rules, a received packet;

    duplicate a part of a header of the identified packet as an additional header when the identified packet comprises a target of encapsulation;

    encapsulate the identified packet by the additional header; and

    process, based on the actions, the identified packet.

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