Optimizing FortiGate-VM performance
The FortiGate VM and VMware ESXi performance optimization techniques described in this section can improve the performance of your FortiGate VM by optimizing the hardware and the VMware ESXi host environment for network- and CPU-intensive performance requirements of FortiGate-VMs.
In addition, the MTU of the port4 interface is set to be compatible with the OpenStack 10 environment, which by default, has an MTU of 1446. (In the
userdata.txt file, the MTU of port4 is set to 1400.) Using the same MTU setting as the OpenStack 10 environment enables the HA heartbeat interfaces to communicate effectively over the ha-sync network.
See these pages for more information on RedHat OpenStack networks and MTU values: