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Method of request routing re-direction with loop detection and prevention

  • US 9,331,976 B2
  • Filed: 11/15/2013
  • Issued: 05/03/2016
  • Est. Priority Date: 11/15/2012
  • Status: Active Grant
First Claim
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1. A computer implemented method of request routing redirection, comprising;

  • receiving, from a user terminal, a domain name system (DNS) request among a plurality of CDNs connected by CDN interconnection (CDNi), the request including a list of CDN-provider-identifications (IDs) of higher CDNs of a first content delivery network (CDN);

    determining, by a processor, whether the request is processable for routing; and

    in response to detection the request is not processable, redirecting the request, while preventing a loop of request routing according to the list.

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