GRE and VXLAN tunnel acceleration
is supported on PA-3200 Series firewalls, PA-5450 firewalls, and
PA-7000 Series firewalls with PA-7000-100G-NPC-A and PA-7050-SMC-B
or PA-7080-SMC-B. You can disable tunnel acceleration to troubleshoot.
When you disable tunnel acceleration, you are doing so for GRE,
VXLAN, and GTP-U tunnels simultaneously.