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QOS_SD_MODE structure (qos.h)

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The QOS object QOS_SD_MODE defines the behavior of the traffic control-packet shaper component.

Syntax

typedef struct _QOS_SD_MODE {
  QOS_OBJECT_HDR ObjectHdr;
  ULONG          ShapeDiscardMode;
} QOS_SD_MODE, *LPQOS_SD_MODE;

Members

ObjectHdr

The QOS object QOS_OBJECT_HDR. The object type for this QOS object should be QOS_SD_MODE.

ShapeDiscardMode

Specifies the requested behavior of the packet shaper. Note that there are elements of packet handling within these predefined behaviors that depend on the flow settings specified within FLOWSPEC.

Value Meaning
TC_NONCONF_BORROW
 This mode is currently only available to the TC API. It is not available to users of the QOS API.

Instructs the packet shaper to borrow remaining available resources after all higher priority flows have been serviced. If the TokenRate member of FLOWSPEC is specified for this flow, packets that exceed the value of TokenRate will have their priority demoted to less than SERVICETYPE_BESTEFFORT, as defined in the ServiceType member of the FLOWSPEC structure.
TC_NONCONF_SHAPE
 Instructs the packet shaper to retain packets until network resources are available to the flow in sufficient quantity to make such packets conforming. (For example, a 100K packet will be retained in the packet shaper until 100K worth of credit is accrued for the flow, allowing the packet to be transmitted as conforming). Note that TokenRate must be specified if using TC_NONCONF_SHAPE.
TC_NONCONF_DISCARD
 Instructs the packet shaper to discard all nonconforming packets. TC_NONCONF_DISCARD should be used with care.

Requirements

Requirement Value
Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Header qos.h

See also

FLOWSPEC

QOS_OBJECT_HDR