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+1 cells. 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.