A municipal design places every tenant IRB default gateway on the spines while leaves only bridge into L2 VNIs. Which EVPN architecture is that?
Select an answer to reveal the explanation.
Short Explanation
CRB parks the default gateways downtown on the spines while leaves just bridge the neighborhood streets. Inter-subnet hops go to that central IRB. ERB would put those gateways out on the leaves instead.
Full Explanation
In Centrally-Routed Bridging, leaves perform bridging into L2 VNIs and VTEPs, while inter-subnet (IRB) routing is concentrated on spines or border leaves. That matches a design where all tenant default gateways live centrally. ERB places IRB/anycast gateways on the edge leaves; asymmetric details and underlay-only Clos designs do not describe this gateway placement.