This test case is used for validating the components of an EPC or an eNB for a valid attach procedure.

In this test case, ABot can simulate the eNB and UE and any other node of the 4G EPC like MME, SGW, PDN-GW, HSS and PCRF. The eNB and UE sends an Initial Attach request message with a valid IMSI value. The eNB and UE receives an Attach Accept message, in an ideal case. Now, eNodeB to send a UE Context Release Request to the MME for S1 release procedure

The procedures completed in this test case are –

  • Diameter Capabilities Exchange
  • S1-Setup
  • Initial UE Message
  • Authentication Information Retrieval
  • Authentication procedure(AKA)
  • Tunnel Management
  • IP CAN Session
  • S1 release procedure

This test case is executed as per 3GPP TS 23.401

 Protocol Used  Nodes Involved  Interfaces Involved
S1AP, Diameter, GTPv2C, NAS  MME, eNodeB, SGW, PGW, HSS, PCRF  S1-MME, S11, Gx, S5/S8, S6a