Patent ID: 8831016
Filing Date: 2014-09-09
Classification: H04L

Abstract:
1. A Diameter signaling router (DSR) including: a network interface for sending Diameter signaling messages to and receiving Diameter signaling messages from Diameter signaling entities in a network; a Diameter address resolution module configured to provide for configuration of a plurality of routing entity identities and an order of preference for using the plurality of routing entity identities in performing Diameter address resolution, wherein the Diameter address resolution module searches attribute value pairs within a received Diameter signaling message for specific routing entity identities by searching a received Diameter signaling message for a most preferred routing entity identity specified by the order, and, in response to failing to locate the most preferred routing entity identity, searching for a next most preferred routing entity identity, and, if located, using the next most preferred network routing entity identity in performing the routing address resolution, determines which routing entity identity to use for the message based on the configured order of preference by using, in the order, routing entity identities located in the message to perform the routing address resolution until an instance of the routing address resolution is successful, and uses the determined routing entity identity to look up Diameter address information; and a Diameter routing module configured to route the Diameter signaling message using the Diameter address information determined by the Diameter routing address resolution module, wherein the routing entity identity comprises an identifier in a Diameter signaling message that identifies an entity and that is resolved into Diameter address information.