In Huawei's CloudFabric solution, tenants are performing VPC interconnection service orchestration

Analysis: Option B is incorrect, if the same physical firewall and ServiceLeaf are shared, only one VRF is required to communicate between VPCs. Option C and option D are wrong, depending on the scene, if two walls are connected to their own physical leaves, two interworking VRFs are requiredIf two walls are connected to the same physical leaf, only one interworking VRF is required to communicate between VPCs. Option A is correct. Bilateral FW and FW in the same device group: The two VPCs that access each other have their own virtual firewalls, traffic passes through the firewalls, and the service leaves of the two VPCs The virtual firewalls of two VPCs that access each other are distributed on two different physical firewalls, and the traffic is crossed by the firewall on both sides, and the two physical firewalls are connected to different firewalls Service Leaf。 Bilateral FW and Service Leaf in the same device group: The virtual firewalls of two VPCs that access each other are distributed on two different physical firewalls, and traffic is bilaterally passed through the firewall, and the two physical firewalls are connected to the same Service Leaf 。