tAtmTdpShaping determines whether egress shaping should occur.
The default tAtmTdpShaping is determined by the Service Category.
The following default applies for tAtmTdpShaping
depending upon a given service category:
Applicable Service Category Default Shaping Value
UBR disabled
CBR enabled
RT-VBR enabled
NRT-VBR enabled
For a Service Category of UBR, tAtmTdpShaping cannot be enabled.
For CBR and RT-VBR service cateories disabling shaping is
MDA-dependent.
Shaping is only applied in the egress direction.