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Integrated adaptive anycast for content distribution

  • US 9,191,292 B2
  • Filed: 10/15/2013
  • Issued: 11/17/2015
  • Est. Priority Date: 12/22/2009
  • 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 status of a first cache server, wherein the status is selected from;

    a non-overloaded status, an overloaded status, or an offline status;

    instructing a domain name server to provide a unicast address for a second cache server when the status of the first cache server is determined to be the offline status; and

    modifying, when the status of the first cache server is the offline status, routing of an anycast address to direct a content request that is sent to the anycast address to the second cache server.

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