In Huawei’s CloudFabric Solution, the iMaster NCE-Fabric SDN controller cluster separates network
planes based on carried services to ensure scalability and security. Let’s evaluate each option:
A. BGP microservice plane: This is not a standard plane in Huawei’s SDN architecture. BGP is used in
the underlay/overlay but not defined as a separate microservice plane for the controller. FALSE.
B. Southbound service plane: This is true. The southbound plane carries configuration and control
data to network devices (e.g., via NETCONF, BGP-EVPN), a critical service plane in SDN. TRUE.
C. Northbound management plane: This is true. The northbound plane provides APIs for
management applications and orchestration (e.g., OpenStack integration), handling service requests.
TRUE.
D. Internal communication plane: This is true. This plane facilitates communication between
controller cluster nodes for synchronization and high availability. TRUE.
Thus, B (Southbound service plane), C (Northbound management plane), and D (Internal
communication plane) are the network planes divided based on carried services.
Reference: Huawei CloudFabric Data Center Network Solution – SDN Architecture; HCIP-Data Center
Network Training – Controller Planes.
