3.7 QoS Sink Details

A responder MAY support multiple network interfaces. If a responder supports multiple network interfaces, it MUST create a separate instance of the responder protocol specified in this section for each supported network interface.

This section details the workings of a responder's QoS network test engine.

Message request/response pairs applicable to a sink are defined as follows.

Sent by controller	Sent by sink
QosInitializeSink	QosError / QosReady
QosProbe	QosProbe (*)
QosQuery	QosQueryResp
QosReset	QosAck

*If the request frame does not contain a nonzero sequence number, the responder does not send a response.