Specifies whether traffic that exceeds the bandwidth for the
default traffic class be dropped or not. The bandwidth limit is the
combined total of the variables qosSwitchPolicyDefaultTCMaxBandwidth
and qosSwitchPolicyDefaultTCMaxBurstSize. A value of yes(1) indicates
that traffic exceeding the bandwidth limit is dropped immediately. A
value of no(0) indicates that the excess traffic is marked as
bandwidth class 3 and is therefore eligible for dropping by the RED
curve settings.