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WSA_QOS_ESDMODEOBJ
Shape/discard mode controls treatment of traffic above the token rate
WSA_QOS_ESDMODEOBJ identifies an invalid QOS_SD_MODE object in the provider-specific sequence. The object tells the packet shaper how to handle nonconforming traffic, such as delaying packets to shape the flow or changing their treatment when the configured token rate is exceeded.
Validate the common object header, the mode value, and the surrounding FLOWSPEC that supplies the rate context. A supported mode can still be meaningless if no traffic-control shaping is active in that direction. Microsoft documents this object for the Traffic Control API rather than ordinary QOS API consumers, so confirm that the selected provider and call path accept it. Do not alter discard behavior without considering packet loss, latency, and application retry characteristics.
Shape/discard checks
- ObjectType and ObjectLength.
- ShapeDiscardMode value.
- TokenRate for the affected flow direction.
- API and provider expected to consume the object.
References
- Microsoft: QOS_SD_MODE behavior and scope
- Microsoft: token-rate semantics
- Microsoft: placement of traffic-control objects
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