Open RAN or ORAN is a game-changing Radio Access Network (RAN) evolution combining RAN functionality with cloud-native design, scale and automation. Legacy RAN was and is still intentionally designed using closed and proprietary architectures that locked operators to a particular vendor, for both radio and supporting hardware (baseband units). Now with ORAN, operators can not only decouple vendors, but also software from hardware, facilitating the migration to a cloud-native model.