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Internet protocol version 6 content routing

  • US 9,800,654 B2
  • Filed: 10/02/2015
  • Issued: 10/24/2017
  • Est. Priority Date: 03/22/2010
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a memory that stores instructions;

    a processor that executes the instructions to perform operations, the operations comprising;

    determining a load for a local cache server located in a first cache server location, wherein the load comprises memory utilization information, a number of concurrent requests being served, and an amount of available bandwidth;

    determining when the local cache server is not available, wherein the local cache server is not available when the load exceeds a first threshold for the local cache server;

    determining when the local cache server is available, wherein the local cache server is available for a request for content when the load is below the first threshold and above a second threshold for the local cache server;

    determining an alternate optimal cache server location based on a relative distance to each alternate cache server location in a list of alternate optimal cache server locations;

    forwarding, when the local cache server is determined to not be available, the request for content to the alternate optimal cache server location selected from the list of alternate optimal cache server locations;

    transmitting, in response to the request, a response including a first unicast address as a source address, a second unicast address of a client system as a destination address, and an internet protocol version 6 anycast address as a home address; and

    receiving the content from the alternate optimal cache server location.

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