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NGAP/NAS Server Test Suite Data Sheet
Test Suite:
NGAP/NAS Server Test Suite

The NG Application Protocol (NGAP) provides the control plane signalling between NG-RAN node and the Access and Mobility Management Function (AMF). The services provided by the NGAP are divided to UE associated and non UE associated. The UE associated services are related to one UE and the non UE associated services are related to the NG interface. The NGAP is transfered over SCTP. The NGAP protocol is defined in TS 38.413. The NGAP protocol provides transport function between UE and AMF by offering NAS signalling transport. The NAS protocol provides mobility management and session management between the User equipment (UE) and Access and Mobility Management Function (AMF). The NAS protocol is defined in TS 24.501. The NGAP/NAS Server Test Suite has been designed to act as a malicious gNodeB and UE that sends exceptional requests to the tested entity. The supported test target is AMF.

Used specifications

3GPP TS 38.413
5G; NG-RAN; NG Application Protocol (NGAP)
Supported specification version: 16.7.0.
3GPP TS 24.501
5G; Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3
Supported specification version: 16.10.0.
3GPP TS 24.007
5G; Mobile radio interface signalling layer 3; General Aspects
Supported specification version: 16.5.0. Only parts which are used in NAS protocol.
3GPP TS 24.008
5G; Mobile radio interface Layer 3 specification; Core network protocols; Stage 3
Supported specification version: 16.7.0. Only parts which are used in NAS protocol.

Tool-specific information

Tested NGAP messages

Cell Traffic Trace

De-registration Request

Error Indication

Handover Cancel

Handover Failure

Handover Notify

Handover Required

Handover Request Acknowledge

Initial Context Setup Failure

Initial Context Setup Response

Initial UE Message

NAS Non Delivery Indication

NG Reset

NG Setup Request

PDU Session Resource Setup Response

PDU Session Resource Modify Response

PDU Session Resource Release Response

RAN Configuration Update

Secondary RAT Data Usage Report

UE Capability Info Indication

UE Context Release Complete

UE Context Release Request

UE Context Suspend Request

UE Context Resume Request

Uplink UE Associated NRPPa Transport

Uplink NAS Transport

Uplink Non UE Associated NRPPa Transport

Uplink RAN Configuration Transfer

Uplink RAN Status Transfer

Tested NAS messages

5GMM Status

Authentication Failure

Authentication Response

PDU Session Establishment Request

PDU Session Modification Complete

PDU Session Modification Reject

PDU Session Modification Request

PDU Session Release Request

PDU Session Release Complete

Registration Complete

Registration Request

Security Mode Complete

Security Mode Reject

Service Request

Supported NAS integrity algorithms





Supported NAS confidentiality algorithms





Operating system limitations

SCTP transport requires the test suite to be run in Linux environment.

Test tool general features
  • Fully automated black-box negative testing
  • Ready-made test cases
  • Written in Java(tm)
  • GUI command line remote interface modes
  • Instrumentation (health-check) capability
  • Support and maintenance
  • Comprehensive user documentation
  • Results reporting and analysis