The NOC wants multicast optimization inside an EVPN-VXLAN civic fabric rather than pure unoptimized flooding. What high-level control-plane expectation is fair?
Select an answer to reveal the explanation.
Short Explanation
EVPN is not stuck in “flood the whole city” mode—it can signal smarter BUM/multicast membership so you are not photocopying every blast to every leaf blindly. Killing VNIs or disabling IGMP for “optimization” is the opposite of a plan. Ask for EVPN multicast-related control features, not nostalgia protocols.
Full Explanation
Beyond basic ingress replication of all BUM to every VNI member, EVPN includes multicast-related route types and procedures that help optimize overlay multicast/BUM distribution and receiver interest at a conceptual level. Exact Junos feature knobs vary, but the exam-level idea is that EVPN can improve on pure flood-and-learn or unoptimized fan-out. Removing VNIs or disabling receiver signaling is not a valid optimization strategy. Operators should align BUM mode, IGMP/MLD snooping where applicable, and EVPN multicast capabilities with application needs.