An engineer is implementing a Cisco ACI environment that consists of more than 20 servers. Two of the servers support only Cisco Discovery Protocol with no other link discovery protocol. The engineer wants the servers to be discovered automatically by the Cisco ACI fabric when connected. Which action must be taken to meet this requirement?
To ensure that the servers which support only Cisco Discovery Protocol (CDP) are discovered automatically by the Cisco ACI fabric, it is necessary to enable CDP on the desired leaf switch interfaces. The correct approach is to configure a higher order interface policy that enables CDP for those interfaces. This will ensure that the specific interfaces on the leaf switches use CDP, while the rest of the environment can continue using the default link discovery protocol (typically LLDP).
A is correct. https://www.tejasjain.com/2019/10/cisco-aci-cdp-configuration.html
In Cisco ACI, interface policies determine the behavior of physical interfaces, including protocols like Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol (LLDP). Since LLDP is enabled by default in ACI, configuring a higher-order interface policy that explicitly enables CDP will override the default behavior, ensuring that CDP is used on the interfaces connected to the servers that only support CDP.
A leaf interface override policy allows interfaces that have interface policy group assignments to apply an alternate interface policy group
To enable automatic discovery of the two servers that support only Cisco Discovery Protocol (CDP) by the Cisco ACI fabric, the engineer must: Enable CDP on the ACI leaf switch interfaces where these servers will be connected. By enabling CDP on the relevant leaf switch interfaces, the ACI fabric will be able to discover and gather information about the connected servers using CDP. This action ensures that even though these servers do not support LLDP (Link Layer Discovery Protocol), which is the default discovery protocol used in ACI, they can still be automatically discovered and integrated into the fabric.