How is the RouterLink port created between a Tier-1 Gateway and Tier-0 Gateway?
A. Manually create a Segment and connect to both Tier-1 and Tier-0 Gateways.
B. Automatically created when Tier-1 is created.
C. Manually create a Logical Switch and connect to bother Tier-1 and Tier-0 Gateways.
D. Automatically created when Tier-1 is connected with Tier-0 from Simplified UI.
