A customer is configuring an upstream disjoint Layer 2 network in a Cisco UCS domain. So far they have configured the fo

[answerhappygod]

A customer is configuring an upstream disjoint Layer 2 network in a Cisco UCS domain. So far they have configured the following:
Fabric Interconnects are in switching mode.
There is symmetrical configuration for high availability.
There are no overlapping VLANs.
Each vNIC is communicating with one disjoint Layer 2 network.
After validating the above, the customer is still having issues with network connectivity. What is the issue?

A. Overlapping VLANs are allowed in a disjoint Layer 2 network.
B. The vNIC configuration is incorrect and must communicate with two or more disjoint layer 2 networks.
C. The fabric interconnect must be in end-host mode for a disjoint Layer 2 network.
D. Asymmetrical configuration for high availability needs to be configured.