The PnfExtCP type is transformed to the v2.extCP type. The value(s) in the layer_protocols property in PnfExtCp type are maintained in the ip_requirements property in the v2.extCp type if they contain the values ipv4 and/or ipv6.
If the values for the layer_protocols property is “get_input” then this is not maintained when transformed to the v2.extCp type. It is possible however to use the SDC UI to define the property as an input.