Architects compare ingress replication versus underlay multicast trees for BUM on the municipal EVPN fabric. Which tradeoff statement is most accurate?
Select an answer to reveal the explanation.
Short Explanation
Ingress replication is the simple underlay story with more photocopying at the sending leaf; underlay trees flip that—fewer copies, more multicast plumbing. Pick the tradeoff for the city's scale. Neither mode trashes Type-2 MAC learning.
Full Explanation
With ingress replication, the source VTEP creates multiple unicast VXLAN copies to remote members—simple underlay, higher head-end load as membership grows. Underlay multicast assisted BUM can reduce duplicate encapsulation work but adds multicast underlay state and operations. EVPN control plane and Type-2 MAC learning remain relevant in both models.