A leaf is programmed with the correct VLANs and interfaces, but the servers in web EPG are unreachable from the outside Layer 2 network. You use a unique external L2out EPG as a Layer 2 extension inside the Cisco ACI fabric.

A leaf is programmed with the correct VLANs and interfaces, but the servers in web EPG are unreachable from the outside Layer 2 network. You use a unique external L2out EPG as a Layer 2 extension inside the Cisco ACI fabric.
A . Configure an MTU of 9000 bytes on the device in the L2out EPG
B . Find the web EPG to a port/leaf
C . Configure contracts between the EPG and L2out EPG
D . Enable a spanning tree on the VLANs on the leaf

Answer: C