I know that the parentProtocol attribute is used as part of DVE child protocols but I cannot seem to find documentation of this usage or of other use cases for that attribute.
The attribute should be part of the Name tag but the page has no mention of it.
Could anyone confirm the possible usage of this attribute?
Indeed, this tag is auto-generated from DataMiner when it creates DVE protocols out of a main protocol.
It's not part of the development guide because it's not intended to be written manually. It's only use is internally, both in its generation and parsing.