Each UNI in an EVC can have different policing values.
EVC Attributes are attributes that describe the EVC itself. They apply to the EVC across the entire carrier network.
EVC Connection Type Attribute
If the EVC is defined as point-to-point, then it must be that way across the whole network.
Attributes by Service Type
MEF 6.x defines six Carrier Ethernet Service types, three private service types and three virtual private service types, by constraining the values in each of the three sets of generic attributes to an appropriate set of values.
An Ethernet Private Line service must have (note that these are just a sample, there are several other attributes):
UNI Physical Layer MUST BE 10 or 100 or 1000 or 1000Mbps Ethernet, Full Duplex only