Section: 17.6.2 AAA Command
Content: The AAA command, defined in Diameter NASREQ (IETF RFC 7155 [120]), is indicated by the Command-Code field set to 265 and the ‘R’ bit cleared in the Command Flags field., It is sent by the BM-SC to the GGSN in response to the AAR command. When the AAA command is used to acknowledge an AAR that activated a Trace Session, the only Gmb specific AVP that shall be included is the 3GPP-IMSI AVP. The relevant AVPs that are of use for the Gmb interface are detailed in the ABNF description below. Other valid AVPs for this command are not used for Gmb purposes and should be ignored by the receiver or processed according to the relevant specifications. The bold marked AVPs in the message format indicate new optional AVPs for Gmb, or modified existing AVPs. Message Format: <AA-Answer> ::= < Diameter Header: 265, PXY > < Session-Id > { Auth-Application-Id } { Origin-Host } { Origin-Realm } [ Result-Code ] [ Experimental-Result ] [ Error-Message ] [ Error-Reporting-Host ] [ Failed-AVP ] * [ Proxy-Info ] [ Alternative-APN ] [ 3GPP-IMSI] [ TMGI ] [ Required-MBMS-Bearer-Capabilities ]