A.1 General

29.2833GPPDiameter data management applicationsRelease 17TS

Diameter overload control mechanism is an optional feature.

IETF RFC 7683 [11] specifies a Diameter overload control mechanism which includes the definition and the transfer of related AVPs between Diameter nodes.

It is recommended to make use of IETF RFC 7683 [11] on the MCPTT-2, MCVideo-2, MCData-2 and CSC-13 interfaces where, when applied, the MC Service Server and the Configuration Management Server shall behave as a reacting node and the MC Service User Database as a reporting node.

Depending on regional/national requirements and network operator policy, priority traffic (e.g. MCPTT emergency call) shall be exempted from throttling due to Diameter overload control up to the point where requested traffic reduction cannot be achieved without throttling the priority traffic.