This feature enables support for GTPv2 protocol on the S2a interface for DHCP, RADIUS Accounting, and PMIPv6-based session triggers for non-UICC devices.
For session triggers using the GTPv2 protocol over the S2a interface, the IMSI field in the Create-Session-Request (CSR) message will contain the decimal equivalent of the MAC address of the UE. The UE’s MN-NAI value (from the AAA Server) in the PAP container within the PCO IE in the CSR message is sent to the local P-GW, and to the PCRF server over the Gx interface. SaMOG can be configured to send the MN-NAI value in the PAP-PCO IE using the samog-s2a-gtpv2 send pco pap value mn-nai command under the Call Control Profile Configuration Mode. The local P-GW can be configured to send the MN-NAI value in the Subscription-ID AVP with MSISDN in CCR-I or CCR-U towards PCRF on the Gx interface using the subscription-id service-type samog-epdg nai command under the Policy Control Configuration Mode.
This feature complies with the following standards:
3GPP TS 23.402 - “3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Architecture enhancements for non-3GPP accesses"
3GPP TS 29.274 - “3rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; 3GPP Evolved Packet System (EPS); Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C); Stage 3"