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<concept xml:lang="en" id="GUID-7FAE6FE0-D5CB-55D4-94B0-ADD545577CA7"><title> Creating and setting properties for a Sub-Connection: Tutorial</title><prolog><metadata><keywords/></metadata></prolog><conbody><p>This tutorial shows how an application can create Quality of Service properties and assign them to a sub-connection. </p> <p>Error handling is not included to aid clarity. </p> <codeblock id="GUID-F9A41E8A-D15B-5028-ABC4-DB400EF0DB19" xml:space="preserve">// Create the container for all sub connection parameters

RSubConParameterBundle subconParams;

CleanupClosePushL(subconParams);

// Create a container for QoS sub connection parameters (Param bundle takes ownership)

CSubConParameterFamily* qosFamily = CSubConParameterFamily::NewL(subconParams,

    KSubConQoSFamily);

// Create the requested generic parameter set for QoS (Qos family takes ownership)

CSubConQosGenericParamSet* reqGenericParams = CSubConQosGenericParamSet::NewL(*qosFamily,                               

    CSubConParameterFamily::ERequested);

// Set the requested Generic Parameters

reqGenericParams->SetDownlinkBandwidth(128);

reqGenericParams->SetUplinkBandwidth(64);

// Create the acceptable generic parameter set for QoS (Qos family takes ownership)

CSubConQosGenericParamSet* accGenericParams = CSubConQosGenericParamSet::NewL(*qosFamily,                               

    CSubConParameterFamily::EAcceptable);

// Set the acceptable Generic Parameters

accGenericParams->SetDownlinkBandwidth(48);

accGenericParams->SetUplinkBandwidth(32);

// Create a requested technology specific parameter set for QoS (Qos family takes ownership)

CSubConQosR99ParamSet* reqRel99Params = CSubConQosR99ParamSet::NewL(*qosFamily,

    CSubConParameterFamily::ERequested);

// Set the requested Technology Specific Params

reqRel99Params->SetMaxSDUSize(1024);

// Create a acceptable technology specific parameter set for QoS (Qos family takes ownership)

CSubConQosR99ParamSet* accRel99Params = CSubConQosR99ParamSet::NewL(*qosFamily,

    CSubConParameterFamily::EAcceptable);

// Set the acceptable Technology Specific Params

accRel99Params->SetMaxSDUSize(512);

// Now open the sub-connection as normal…

………

………

// Create a new sub-connection

subconn.Open(ss, RSubConnection::ECreateNew, conn);

// Set Properties of the sub-connection

subconn.SetParameters(subconParams);

// Destroy parameters

CleanupStack::PopAndDestroy();         // subconParams

// Open a TCP socket on the sub-connection

sock.Open(ss, KAfInet, KSockStream, KProtocolInetTcp, subconn);

_LIT(KRasAddr,"10.159.24.13");

const TInt KEchoPort = 7;

TInetAddr destAddr;

destAddr.Input(KRasAddr);

destAddr.SetPort(KEchoPort);

// Connect the Socket to the destination over the sub-connection

sock.Connect(destAddr, status);

User::WaitForRequest(status);

// Fetch the granted qos

RSubConParameterBundle grantedParams;

subconn.GetParameters(grantedParams);