Throttling Support for Sx Establishment
When user-plane is in overload situation, cnSGW-C establishes throttling the Sx Establishment request message toward user-plane. This throttling avoids new calls (Low priority or non-emergency) towards the overloaded user-plane.
Throttling takes place as per the reported OCI values in percentage. Following actions takes place when throttling happens:
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Random drop of percentage in reported Sx Establishment Request messages towards that user-plane.
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Call drop occurs at cnSGW-C with sx_no_resource_available disconnect reason.
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Respective statistics get incremented.