The Cell Loss Ratio estimated to be experienced by cells
of connections transmitted out this interface of this Service
Category. This is an estimate for clp0 cells only. The unit of
this object is negative power of ten (so an object value of 8
means 10**(-8)). This object is valid for Service Categories cbr,
vbr-rt, and vbr-nrt. For other Service Categories, the object is
not defined.