Purpose of the Diameter Signaling Router solution

The DSR acts as a centralized core Diameter signaling layer that relieves LTE, IMS, and 3G Diameter endpoints of routing, traffic management, and load balancing tasks; and provides a single interconnection point to other networks.

This approach eliminates the Diameter/SCTP (or TCP) mesh that is created by having direct signaling connections between each network element. Having one or more hubs that centralize the connection to all end nodes simplifies interoperability between different network elements and enhances network scalability. The resulting architecture reduces the cost and complexity of the core network and enables IP networks to grow incrementally to support increasing service and traffic demands. It also facilitates network monitoring by providing a centralized vantage point in the signaling network.