What is a limitation when PCI Passthrough is deployed?
- CPU utilization in increased.
- VNFs cannot share pNICs.
- Traffic between VNFs must be switched by an external switch.
- A dedicated CPU core is required to poll pNICs and process incoming data.
Explanation: PCI Passthrough was developed to increase packet throughput in an OVS environment. However, the downside to PCI Passthrough is that each pNIC is dedicated to a single VNF.