問題文
In a data center that uses an overlay for tenant traffic, what is the underlay network responsible for?
選択肢
- Keeping a separate table for every tenant and deciding, for each tenant, which destinations that tenant is permitted to reach, so that the separation between tenants is enforced by the switches in the middle of the network rather than at the edge where the traffic enters.
- Assigning addresses to the workloads inside each tenant network.
- Providing plain reachability between the tunnel endpoints, with enough capacity and a large enough frame size to carry the encapsulated traffic.
- Terminating the tunnels and removing the outer headers.