In earlier releases, SaMOG could send either the AP-Group-Name or the SSID value in the TWAN-Identifier IE in the Create Session Request (CSR) message. From Release 21.1 and later, operators can provision the SaMOG Gateway to forward AP-MAC, SSID, and AP-Group-Name triplet information in the TWAN-Identifier IE received from the access network to P-GW, Lawful Intercept (LI) services.
This feature enables the AP-Group-Name information to be encoded in the Civic-Address-Information IE within the TWAN-Identifier IE as defined in RFC 4776. The TWAN-Identifier will contain:
AP-MAC to be encoded in the BSSID attribute
SSID to be encoded in the SSID attribute
AP-Group-Name to be encoded in the civic-addr attribute
On receiving the Civic Address Information IE within the TWAN-Identifier IE, P-GW can forward the IE towards PCRF (Gx) and OCS (Gy).
This feature is currently supported on the S2a GTPv2 protocol for RADIUS Authentication-based session triggers.
When this feature is enabled, the memory utilization of the AAAMgr will increase slightly.