This Recommendation aims to specify the signalling requirements for cloud-based control plane and pooled user plane of vBNG (virtualized Broadband Network Gateway). Firstly, as a basic background, this Recommendation introduces the centralized deployment requirements and architecture of CCP (cloud-based control plane) and PUP (pooled user plane) of vBNG. Based on the service procedure of vBNG, the signalling requirements for CCP and PUP of vBNG will be introduced.