Question

You are deploying a pair of Nexus 9300 leaf switches in a Cisco ACI fabric to provide a vPC to a dual-homed application server. After configuring the vPC interface policy group and applying it to both leaf ports, the server's port-channel remains down and the APIC reports the leaves are not forming a vPC domain. Which configuration step is required to establish the vPC domain between the two leaf switches in ACI?

Accepted Answer

Create a vPC Explicit Protection Group that pairs the two leaf node IDs and assigns a vPC domain ID

Answer

Manually configure a vPC peer-link and peer-keepalive link between the two leaf switches under the fabric access policies

Answer

Enable the vPC feature on each leaf using the CLI 'feature vpc' command before applying the interface policy group

Answer

Configure a common HSRP group across both leaves so they share a virtual MAC for the vPC