Operations asks why the city should use GBP instead of creating a separate VNI for every application tier that needs isolation. What advantage should be emphasized?
Select an answer to reveal the explanation.
Short Explanation
VNIs are whole apartments; GBP is locks on the interior doors. You can keep one apartment and still stop the cameras from wandering into finance. Spinning a new VNI for every tier is how fabrics drown in overlay sprawl.
Full Explanation
GBP supports microsegmentation using group identity and policy so many isolation intents can live inside fewer VNIs. Creating a VNI per tier quickly multiplies overlay state and operations overhead. GBP still operates in an EVPN-VXLAN context rather than replacing EVPN, and it does not require a dedicated VNI per host as a prerequisite.