Main 
{
NetworkAccess 1;
UsServiceFlow
{
UsServiceFlowRef 1;
QosParamSetType 7;
}
DsServiceFlow
{
DsServiceFlowRef 2;
QosParamSetType 7;
}
UsServiceFlow
{
VendorSpecific
{
VendorIdentifier 0xffffff;
L2VPNEncoding
{
L2VPNMode 1;
}
}
}
}
