Tekelec

Oracle International Corporation

Donald E Wallace

Mark Edward Kanode

Jeffrey Alan Craig

David Michael Sprague

Kedar Kashinath Karmarkar

Thomas Matthew McCann

Mahesh Tomar

Peter Joseph Marsico

Jonathan James Palmer

Steven Robert Donovan

Sridhar Karuturi

Pankaj Goyal

Rajat Budhiraja

Thomas Michael Wagner

Thomas M Mccann

The subject matter described herein includes systems, methods, and computer readable media for selective Diameter topology hiding. The system includes a Diameter agent including a network interface configured to receive, from a first Diameter node in a first service provider network, a first Diameter signaling message including Diameter topology information and a Diameter topology hiding module (THM). In some aspects, the THM is configured to determine a trust relationship between the first service provider network and a second service provider network to which the first Diameter signaling message is addressed, in response to determining that the trust relationship requires at least some level of topology hiding, determine a topology hiding type based on the first Diameter signaling message, and modify, based on the topology hiding type, the Diameter topology information included in the first Diameter signaling message to hide at least some of the Diameter topology information.

Methods, systems, and computer readable media for selective diameter topology hiding

According to one aspect, the subject matter described herein includes a method for routing Diameter messages. The method includes steps occurring at a Diameter signaling router (DSR) comprising a plurality of Diameter message processors. The method includes receiving a Diameter request message. The method further includes generating a hop-by-hop identifier for identifying a first Diameter message processor of the plurality of Diameter message processors. The method further includes incorporating the hop-by-hop identifier into the Diameter request message. The method further includes routing the Diameter request message to a first Diameter node.

Methods, systems, and computer readable media for routing diameter messages at a diameter signaling router

According to one aspect, the subject matter described herein includes a method of operating a Diameter signaling router (DSR) for routing Diameter messages. The method includes steps occurring at a DSR comprising a plurality of Diameter message processors, each configured to perform at least one Diameter function. The method also includes detecting, at a first of the plurality of Diameter message processors, a change in status relating to the at least one Diameter function. The method further includes communicating, by the first of the plurality of Diameter message processors and to a second of the plurality of Diameter message processors, an indication of the change in status.

Methods, systems, and computer readable media for inter-message processor status sharing

Methods, systems, and computer readable media for answer-based routing of Diameter request messages are disclosed. According to one method, a Diameter request message is received from a first Diameter node at a. A copy of at least a portion of the Diameter request message is cached at the DSR and the Diameter request message is routed to a second Diameter node. The DSR determines whether a predetermined condition associated with an answer to the first Diameter request message exists. In response to determining that the predetermined condition exists, the cached portion of the Diameter request message is retrieved, a Diameter request that includes the cached portion of the Diameter request message is generated, and the generated Diameter request message is routed.

Methods, systems, and computer readable media for answer-based routing of diameter request messages

Methods, systems, and computer readable media for configurable Diameter address resolution are disclosed. One method includes, at a Diameter signaling router (DSR), sending Diameter signaling messages to and receiving Diameter signaling messages from Diameter signaling entities in a network. The method further includes providing for configuration of a plurality of routing entity identities and an order for preferentially using the routing entity identities in performing Diameter address resolution. The method further includes routing Diameter signaling messages using Diameter address information determined in the Diameter routing address resolution.

Methods, systems, and computer readable media for configurable diameter address resolution

According to one aspect, the subject matter described herein includes a method for routing Diameter messages. The method includes steps occurring at a Diameter signaling router (DSR) comprising a plurality of Diameter message processors. The method also includes receiving, by a first of the plurality of Diameter message processors and from a first Diameter node, a Diameter message, wherein the Diameter message is received via a first Diameter connection. The method further includes determining, by the first Diameter message processor, a next-hop Diameter node for the Diameter message. The method further includes communicating, by the first of the plurality of Diameter message processors and to a second of the plurality of Diameter message processors, the Diameter message. The method further includes communicating, by the second Diameter message processor and to the next-hop Diameter node, the Diameter message, wherein the Diameter message is communicated via a second Diameter connection.

Methods, systems, and computer readable media for inter-diameter-message processor routing

Methods, systems, and computer readable media for source peer capacity-based Diameter load sharing are disclosed. According to one aspect, the subject matter described herein includes a method for source peer capacity-based Diameter load sharing. A network element for processing Diameter messages received from a Diameter peer requests information regarding a Diameter message capacity requirement of the Diameter peer, receives information regarding the Diameter message capacity requirement of the Diameter peer, and uses the received information to load share the processing. In one embodiment, the network element is a Diameter signaling router having multiple message processors for processing Diameter messages, and the information regarding the Diameter message capacity requirement of the Diameter peer is used to load share Diameter message processing and/or Diameter connections among the multiple message processors.

Methods, systems, and computer readable media for source peer capacity-based diameter load sharing

Methods, systems, and computer readable media for providing local application routing at a Diameter node are disclosed. In one example, the method includes receiving, at an ingress Diameter message processor associated with a Diameter signaling router (DSR), a Diameter message from a first Diameter node. The method further includes accessing, using the ingress Diameter message processor, Diameter peer routing information to determine an egress Diameter message processor among a plurality of egress Diameter message processors within the DSR and associated with a second Diameter node that is a peer of the DSR and to which the Diameter message is to be forwarded. The method also includes forwarding the Diameter message to the determined egress Diameter message processor.

Methods, systems, and computer readable media for providing peer routing at a diameter node

Methods, systems, and computer readable media for providing origin routing at a Diameter node are disclosed. One exemplary method includes receiving, at a Diameter message processor associated with a DSR, a Diameter message from a first Diameter node. The method further includes accessing, using the Diameter message processor, Diameter peer routing information that includes Diameter origination information to determine a second Diameter node that is a peer of the DSR and to which the Diameter message is to be forwarded. The method also includes forwarding the Diameter message to the determined second Diameter node.

Methods, systems, and computer readable media for providing origin routing at a diameter node

According to one aspect, the subject matter described herein includes a method for providing Diameter application loop prevention. The method includes steps occurring at a first Diameter node. The method further includes receiving a first Diameter message that is to be sent to a destination. The method also includes determining whether the first Diameter message requires processing by a Diameter application. The method includes, in response to determining that the first Diameter message requires processing by the Diameter application, determining whether the first Diameter message has been processed by the Diameter application. The method further includes, in response to determining that the first Diameter message has been processed by the Diameter application, preventing the first Diameter message from being sent to the Diameter application for processing.

Methods, systems, and computer readable media for diameter application loop prevention

According to one aspect, the subject matter described herein includes a method for providing Diameter network management information in a communications network. The method includes steps occurring at a Diameter signaling router (DSR). The method also includes determining whether successful Diameter communications are available with a first Diameter application. The method further includes in response to determining that successful Diameter communications are not available with the first Diameter application, generating a first Diameter network management message (DNMM) indicating that successful Diameter communications are not available with the first Diameter application. The method also includes sending the first DNMM to a second Diameter node.

Methods, systems, and computer readable media for diameter network management

Methods, systems, and computer readable media for providing local application routing at a Diameter node are disclosed. One method includes receiving, at an ingress Diameter message processor associated with a Diameter signaling router (DSR), a Diameter message from a peer Diameter element. At the ingress Diameter message processor, application routing data is accessed to determine whether processing of the Diameter message by a Diameter application is required. In response to determining that Diameter application processing is required, the Diameter message is forwarded to a Diameter message processor hosting a Diameter application identified by the application routing data for processing. In response to determining that Diameter application processing is not required, the Diameter message is forwarded to an egress Diameter message processor associated with the DSR.

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Evergreen, CO, United States of America

Donald E Wallace