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Methods, systems, and computer readable media diverting diameter traffic from an overloaded policy and charging rules function (PCRF)

  • US 9,800,504 B2
  • Filed: 10/20/2015
  • Issued: 10/24/2017
  • Est. Priority Date: 10/20/2015
  • Status: Active Grant
First Claim
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1. A method for implementing intelligent routing via diverting Diameter traffic from an overloaded Policy and Charging Rules Function (PCRF), the method comprising:

  • at a Diameter Routing Agent (DRA);

    receiving, at the DRA, a first session establishment request for establishing a first policy session for a first packet data network (PDN) connection involving a subscriber;

    generating, at the DRA, a routing entry in a routing table that associates the first PDN connection involving the subscriber with a first destination identifier identifying a first PCRF;

    receiving, at the DRA, an indication that the first PCRF is overloaded;

    receiving, at the DRA, a second session establishment request for establishing a second PDN connection involving the subscriber; and

    generating, at the DRA, a new routing entry in the routing table that associates the second PDN connection involving the subscriber with a second destination identifier that does not identify the first PCRF thereby diverting traffic away from the first PCRF.

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