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SYSTEM FOR FORWARDING A PACKET WITH A HIERARCHICALLY STRUCTURED VARIABLE-LENGTH IDENTIFIER

  • US 20100195653A1
  • Filed: 09/23/2009
  • Published: 08/05/2010
  • Est. Priority Date: 01/30/2009
  • Status: Active Grant
First Claim
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1. A computer-implemented method for forwarding a packet with an hierarchically structured variable-length identifier (HSVLI), wherein the computer includes a processor, the method comprising:

  • receiving on an input port a packet with an HSVLI,wherein the HSVLI indicates a piece of content and can be hierarchically structured, comprising contiguous components ordered from a most general level to a most specific level; and

    wherein the length of a respective identifier is not fixed;

    converting the HSVLI into a fixed-length key;

    obtaining forwarding information based on one or more longest-prefix matches with a longest-prefix-match lookup engine using the fixed-length key; and

    forwarding the packet to an output port based on the forwarding information.

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