SAPD: Missing inherited attributes from CPD
According to section 6.2.3.1 of IFA014:
"A Sapd inherits from the corresponding Cpd Class [...] All attributes of the Cpd are also attributes of the Sapd"
These attributes are specified on section 7.1.6.3 of IFA011 and include a description, the layer protocol, the CpProtocolData, the trunkMode and the id of a security group rule. However, these attributes seem to be missing on the SAPD YANG definition so they cannot be specified at the NSD level.
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