Implementing Cisco Application Centric Infrastructure (DCACI) — Question 238

The existing network and ACI fabric have been connected to support workload migration. Servers will physically terminate at the Cisco ACI, but their gateway must stay in the existing network. The solution needs to adhere to Cisco’s best practices. The engineer started configuring the relevant Bridge Domain and needs to complete the configuration. Which group of settings are required to meet these requirements?

Answer options

• A. L2 Unknown Unicast: Hardware Proxy L3 Unknown Multicast Flooding: Flood Multi Destination Flooding: Flood in BD ARP Flooding: Enable -
• B. L2 Unknown Unicast: Flood - L3 Unknown Multicast Flooding: Flood Multi Destination Flooding: Flood in BD ARP Flooding: Enable -
• C. L2 Unknown Unicast: Flood - L3 Unknown Multicast Flooding: Optimize Flood Multi Destination Flooding: Flood in BD ARP Flooding: Disable -
• D. L2 Unknown Unicast: Hardware Proxy L3 Unknown Multicast Flooding: Optimize Flood Multi Destination Flooding: Flood in BD ARP Flooding: Disable

Correct answer: B

Explanation

Option B is correct because it specifies 'L2 Unknown Unicast: Flood' which is necessary for the ACI to handle unicast traffic properly when the gateway is outside the fabric. The other options either use 'Hardware Proxy' or incorrect flooding settings that do not meet the requirement of keeping the gateway in the existing network.