Section: 16a.4.5 STR Command
Content: The STR command, defined in IETF RFC 6733 (Diameter Base) [111], is indicated by the Command-Code field set to 275 and the ‘R’ bit set in the Command Flags field. It is sent by the GGSN/P-GW to the Diameter server to terminate a DIAMETER session corresponding to an IP-CAN session of a certain user. The relevant AVPs that are of use for the Gi/Sgi interface are detailed in the ABNF description below. Other valid AVPs for this command are not used for Gi/Sgi purposes and should be ignored by the receiver or processed according to the relevant specifications. Message Format: <ST-Request> ::= < Diameter Header: 275, REQ, PXY > < Session-Id > { Origin-Host } { Origin-Realm } { Destination-Realm } { Auth-Application-Id } { Termination-Cause } [ User-Name ] [ Destination-Host ] * [ Class ] [ Origin-State-Id ] * [ Proxy-Info ] * [ Route-Record ] * [ AVP ]