An engineer configures two Cisco ACI leaf switches called Leaf1 and Leaf2 as VPC peers. The server called S1 is connected to Leaf1 with a port channel interface. How is S1 learned in the endpoint…

A remote endpoint refers to an endpoint learned through a spine switch from another leaf that is not a vPC peer, or from an external routed network.

A bounce entry endpoint is a temporary state indicating an endpoint has moved, often triggering re-learning, and is not the stable state for a vPC-attached host.

A local endpoint is how S1 is learned on Leaf1, the switch to which it is directly connected; Leaf2 learns it differently.

In a Cisco ACI vPC setup, an endpoint directly connected to one leaf (e.g., Leaf1) of the vPC pair is considered a 'local endpoint' on Leaf1. Leaf2, being the vPC peer, learns about this endpoint from Leaf1 through the fabric and classifies it as an 'on-peer endpoint' in its own endpoint table. This mechanism ensures that both vPC peers are aware of the endpoint's location for proper traffic forwarding and redundancy.