An engineer must configure a Cisco ACI bridge domain to prevent flooding from unknown unicast frames. Which action must be configured in Cisco ACI to accomplish this goal?
A.
Set the bridge domain option to Flood in Encapsulation.
B.
Configure Clear Remote MAC Entries in the bridge domain mode.
C.
Set Disable Remote EP Learn in the Fabric Wide Setting Policy.
D.
Configure the bridge domain to operate in optimized mode.
A bridge domain can be set to operate in flood mode for unknown unicast frames or in an optimized mode that eliminates flooding for these frames. When operating in flood mode, Layer 2 unknown unicast traffic is flooded over the multicast tree of the bridge domain (GIPo). For the bridge domain to operate in optimized mode you should set it to hardware-proxy. In this case, Layer 2 unknown unicast frames are sent to the spine-proxy anycast VTEP address.
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/4-x/L2-configuration/Cisco-APIC-Layer-2-Configuration-Guide-411/Cisco-APIC-Layer-2-Configuration-Guide-411_chapter_0101.html#:~:text=A%20bridge%20domain%20can%20be,spine%2Dproxy%20anycast%20VTEP%20address.
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