This attribute specifies the type of traffic management which is
applied to the receive direction of this connection as defined in the
ATM Forum. The rxTrafficDescType determines the number and
meaning of the parameters in the rxTrafficDescParm attribute.
When this attribute is set to sameAsTx, the rxTrafficDescType as
well as the rxTrafficDescParm are taken from the
txTrafficDescType and txTrafficDescParm values.