Express Mode and Secure Mode
    
    Palo Alto Networks firewall models with a K2-designated
SKU are for service providers and support express mode (prioritizing
highest throughput) and secure mode (providing full security functionality).
    The Palo Alto Networks® family of 5G-ready next-generation
firewalls is available in physical and virtual form factors:
- All VM-Series firewalls are 5G-ready.
 - If you accidentally change a firewall from express mode to secure mode, you can
                    Restore Express Mode.