Open Source 4G & Non-Standalone 5G Orchestration
The Diameter Routing Agent (DRA) orchestrates Diameter signaling in 4G & non-standalone (NSA) 5G networks, enabling reliable subscriber authentication, seamless session authorization and real-time billing.
OVERVIEW
PAiCore’s DRA acts as an intelligent controller of Diameter traffic, also serving as a mediation layer that enables advanced routing and message normalization, offering load balancing, policy enforcement and interoperability for signaling, simplifying network architectures and enabling scalable, reliable AAA services.
Developed as an open source signaling solution, our DRA offers the flexibility to adapt quickly to new requirements and use cases, while maintaining full interoperability across multiple Diameter protocol references. Its open architecture empowers operators to evolve with industry standards and optimize resources without the constraints of proprietary systems.
Acting as a single point of connection, DRA aids in simplifying the core network's complexity by controlling and managing the Diameter signaling among multiple 4G LTE network elements through a single node that ensures the proper connections and sessions are established.
KEY FEATURES
- Topology hiding with built-in load balancing to protect networks
- IMSI-based routing with filtering, fallback and drop options
- Seamless protocol interworking between SS7 & Diameter
- Aligned with 3GPP Diameter (Release 19), supporting up to 1,200 TPS
CAPABILITIES
Manages Traffic Through Profile Specifications
Traffic that passes through DRA can be routed to the appropriate destination nodes, based on priority and load-balancing mechanisms, subscriber identity ranges, and other predetermined filters.
IMSI Based Routing
DRA analyzes the IMSI from incoming Diameter requests and routes the traffic according to its routing table.
Message Filtering
Through predefined routing policies, DRA message filtering allows undesired traffic blocking, while maintaining node connectivity and overall stability.
Fallback and Drop Policy
If a message cannot be routed to the destination host, the DRA can redirect it to the next available host. The Drop Policy may be set to discard unmatched or failed messages.
Destination Realm Substitution
Destination Host and Destination Realm AVPs can be substituted according to customizable rules.
Multi-homing
The Diameter stack can be configured as multiple servers, standalone IP, or as a multihomed single server with multiple additional IPs.
High-traffic Capabilities
Thanks to its high TPS capabilities it allows a multi-vendor and multi-node environment, simplifying interconnections within the MNO/MVNO core.
DIAMETER REFERENCE POINTS
Simplifies Connections Between the Nodes
Designed to handle the complexities of modern telecommunications, DRA integrates with essential Diameter reference points including 3GPP’s S6a/S6d, Cx/Dx, Gx, Gy, Ro, Rf, Sh, SLh, SLg, S13/S13', S6c, SGd and any extensions built upon the Diameter base protocol as specified by IETF RFC 6733.
USE CASES
DRA Use Cases
Subscriber authentication
Reliable subscriber authentication in 4G & non-standalone (NSA) 5G networks.
Session authorization
Seamless session authorization, with policy enforcement for signaling.
Real-time billing
Real-time billing, including VAS charging integrated with multiple MNOs.
Core network simplification
A single point of connection that manages Diameter signaling among multiple 4G LTE network elements.
Multi-vendor interconnection
A multi-vendor and multi-node environment, simplifying interconnections within the MNO/MVNO core.
Protocol interworking
Seamless interworking between SS7, Diameter and HTTP/2.
SUCCESS STORIES
Recent Success Stories
019Mobile
019Mobile relies on PAiCore’s DRA to reliably handle Diameter AAA traffic across the host mobile networks supporting its operations, ensuring stable and efficient signaling services.
BillyRonks
BillyRonks is a value-added service aggregator leveraging the DRA to integrate its VAS charging solution with all 4 MNOs in Nigeria.
TECHNICAL INFORMATION
TPS & Recommended HW
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