XcmCommsMgmtCommandData
A write to this object specifies: a) a 'test' command subtype and any accompanying 'test' protocol specific data; or b) a 'manage' command subtype and any accompanying 'manage' protocol specific data; or c) protocol specific data accompanying any other command. A read of this object SHALL return the data (if any) which accompanied the current or last completed command. Note: Conforming implementations are STRONGLY encouraged to consider support of encrypted password writes in this object.