Fortigate Vm Sizing Azure Verified
The F-series is compute-optimized, boasting high clock speeds.
Always choose an Azure VM size that supports Accelerated Networking.
As your traffic grows, you generally have two paths:
Standard enterprise edge firewalls, hub-and-spoke routing, and moderate IPS traffic. fortigate vm sizing azure
If your FortiGate-VM will terminate a large number of VPN tunnels (IPsec or SSL), vCPU sizing must account for encryption overhead. In such cases, compute-optimized Fsv2-series VMs are strongly preferred over general-purpose families.
To properly size your FortiGate-VM, you need to understand the key performance numbers provided in the official FortiGate VM datasheet:
Higher CPU-to-memory ratio, ideal for compute-heavy SSL inspection. VMSS (Scale Sets) If your FortiGate-VM will terminate a large number
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Your estimated and whether you require SSL/TLS deep packet inspection
Minimal CPU overhead. Traffic is processed via basic packet filtering. VMSS (Scale Sets) user wants a long article
If your traffic needs change, you can resize the VM without losing configuration: Stop the FortiGate VM within the Azure Portal. Navigate to in the VM menu.
Licenses are sold by vCPU count (e.g., VM02, VM04, VM08). If you deploy an 8-core Azure VM but only have a VM04 license, the FortiGate will only utilize 4 cores.
Based on the guidelines above, you would need a:
