Fortigate Vm Sizing Azure Review

Your estimated and whether you require SSL/TLS deep packet inspection

If using the FortiGate as a VPN hub (Site-to-Site or Client VPN), you must account for encryption overhead.

Not all Azure VM series are optimized for network security tasks. The most common choices include: fortigate vm sizing azure

: The BYOL model is tied to vCPU count, not RAM. In Azure, you are free to select any VM size and its associated RAM, as FortiGate-VM BYOL licenses do not have RAM restrictions in public clouds like Azure, a change from earlier FortiOS versions.

In an Active-Passive High Availability (HA) architecture, the passive node does not process transit traffic but requires an identical Azure VM size to ensure a seamless failover during disruptions. Your estimated and whether you require SSL/TLS deep

| Azure Instance Type | vCPU | Max NICs | Recommended BYOL License | |---|---|---|---| | Standard_F2 | 2 | 2 | FG-VM02 | | Standard_F4 | 4 | 4 | FG-VM04 | | Standard_F8 | 8 | 8 | FG-VM08 | | Standard_F16 | 16 | 8 | FG-VM16 | | Standard_F2s_v2 | 2 | 2 | FG-VM02 | | Standard_F4s_v2 | 4 | 2 | FG-VM04 | | Standard_F8s_v2 | 8 | 4 | FG-VM08 | | Standard_F16s_v2 | 16 | 4 | FG-VM16 | | Standard_F32s_v2 | 32 | 8 | FG-VM32 | | Standard_F64s_v2 | 64 | 8 | FG-VMUL | | Standard_F72s_v2 | 72 | 8 | FG-VMUL |

If you want, I can also provide a comparison of versus Bring-Your-Own-License (BYOL) costs for your specific throughput needs. In Azure, you are free to select any

Standard_F16s_v2 or Standard_D16s_v5 NIC Count: 8+

Sizing the virtual machine is only half the battle; you must align the Azure infrastructure to support the firewall's network requirements. Accelerated Networking (SR-IOV)

FortiGate-VM is the industry standard for Azure network security, but sizing is significantly more complex than on-premises hardware. Unlike a physical appliance where hardware is fixed, Azure requires you to balance Compute Power (vCPU/RAM) against Network Throughput limits imposed by Azure, not Fortinet.

A specific issue can cause a FortiGate Azure VM to enter "conserve mode," a protective state where non-essential services are stopped. This is often due to a memory leak in the azd daemon, which handles health checks for Azure Network Virtual Appliance (NVA) integration.