Phone: (469) 634-4200


McKinney, TX (June 16, 2018) – dsTest has added support for Packet Forwarding and Control Protocol (PFCP) interfaces between the control plane functions and the user plane functions (UPF):

Sxa – SGW Control to User Plane

Sxb – PGW Control to User Plane

Sxc – TDF Control to User Plane

dsTest supports the testing of these PFCP interfaces with our UPF node and control nodes such as the SMF.  For 5G, the Sxa and Sxb interfaces are combined for support of the N4 interface.

dsTest, Developing Solutions, Control and User Plane Separation, Sxa Interface, Sxb Interface, Sxc Interface


dsTest, Developing Solutions, N4 Interface, CUPS, 5G, UPF, SMF







Please contact Developing Solutions for more information about these new features of dsTest.

About dsTest

Developing Solutions’ growing collection of protocol applications and Subscriber Management, Policy and Charging Control, EPC, IMS/VoLTE, CIoT/NB-IoT, eMBMS, SMS, VoWiFi and WLAN Interworking testing tools gives dsTest the ability to identify problems and potential bottlenecks in the lab before they show up in the network.

In addition to Control Plane interfaces, dsTest also support User Data interfaces.

dsTest runs on several distributions of Linux and is designed to take advantage of the latest processor and virtualization technology available with COTS hardware in order to provide high performance and capacity, and assists carriers and vendors in their drive toward network function virtualization (NFV) and software defined networks (SDN).  Wireless Service Providers and Network Equipment Manufacturers rely on dsTest to for performance, compliance, and reliability validation of their network devices and architectures.  dsTest is accompanied by the dsClient graphic user interface (GUI), which allows easy configuration and control of the tool, and provides live operational measurements monitoring in chart or tabular form.

dsTest further simplifies the process of testing the signaling core with multiple advanced testing features and solutions, such as C-SGN, SmartEvents, Diameter Dictionary validation, and SmartAVP.

To learn more about Developing Solutions core network test solutions, refer to our product page or contact Developing Solutions, Inc. at or (877) 233-8350.

About Developing Solutions, Inc.

Developing Solutions is a test equipment software development firm founded in 2002 with extensive experience in the Telecom and Datacom industries, including both NEM and test equipment manufacturers. Developing Solutions helps carriers and equipment manufacturers avoid costly downtime by easily scaling an environment to simulate hundreds of millions of subscribers to test capacity, compliance, scalability and redundancy. The company is located in the DFW Metroplex.