Which configuration issue likely caused this outage?

Refer to the exhibit.

A Nutanix host is connected as shown in the exhibit with br0-up set to active/backup. Physical Switch 1 experiences a power outage causing br0-up to failover to using eth2. The CVM and host become inaccessible. User VMs restart on other hosts in the cluster, which causes a disruption to those VMs.

Which configuration issue likely caused this outage?
A . Bridge br0-up should be configured to use balance-tcp rather than active/backup.
B. The CVM should have eth1 connected to the OVS.
C. The upstream port for eth2 is missing a VLAN.
D. The user VMs only have one NIC

Answer: C

Explanation:

Explanation:

Reference: https://portal.nutanix.com/page/documents/solutions/details?targetId=BP-2071-AHV-Networking:top_ahv_networking_best_practices.html