The Diameter Signaling protocol is the lifeblood of signaling network. The growing Diameter Signaling traffic is an indication of growth in revenue-generating applications as a result of network complexity, subscriber roaming between access technologies, increasing smartphone subscriptions, data tra
The robustness and scalability of signaling network architecture needs to be validated in test labs prior to deployment to verify whether the architecture can handle this growth in Diameter Signaling. This is vital to ensure the high quality and high availability of service delivery to customers even in cases of heavy diameter signaling load, node failures and malicious activities that trigger a signaling storm.
EXFO’s Diameter simulator test solution delivers the best scalable high capacity and high performance in the industry, coupled with unmatched flexibility and user-friendliness.
EXFO’s solution for Diameter testing brings:
Diameter Router Agent (DRA) Testing
The volume of Diameter signaling traffic in LTE and IMS networks is large enough; operators are proactively architecting signaling controllers. Diameter signaling controllers (DSC) or Diameter router agent (DRA) or Diameter agent (DA) is at the core of the Diameter network that helps to alleviate Diameter traffic. The major use cases that needs to be tested are:
EXFO’s Diameter DRA testing is the only solution in the market today that tests all of the DRA use cases generating hundreds of thousands of stateful Diameter transactions with large number of subscriber simulation. Our Diameter testing solution can be used to characterize the DRA that supports different behavior of DRA such as Relay, Proxy, Redirect, and Translation. EXFO’s DRA test solution can help you ensure that all the diameter sessions are routed to the correct network element as well as functionality of 3G/4G roaming and interconnect functions of DEA.
DRA Testing Solution Highlights:
Policy and Charging Function Testing (PCRF Testing)
PCRF acts as the decision point for policy and charging actions in the network by managing rules across subscribers, devices and networks that use Diameter messages. As such, it is one of the most critical components in IMS, 3G and 4G LTE networks. PCRF communicates with PCEF (policy control enforcement function) like packet gateways (PGW) and deep packet inspection (DPI), online charging system (OCS), and offline charging system (OFCS) functions and more. Testing these critical functions in the labs before deployment is important for MNOs to differentiate services and maximize the revenue.
EXFO’s Diameter PCRF testing solution offers surround testing of PCRF by emulating devices and interfaces to ensure that appropriate amounts of bandwidth are dynamically allocated to each service in real time, thus making the most efficient use of network resources for delivering advanced services such as VoLTE and WebRTC. It supports the complete set of procedures as defined in 3GPP specifications including but not limited to: