Fortigate Vm Sizing Azure __top__ May 2026

Sizing FortiGate-VM on Microsoft Azure Sizing a FortiGate-VM in Microsoft Azure requires balancing technical resource requirements with licensing models to ensure peak performance for your network security workload. Core System Requirements

5.3 Availability Set / Zone Redundancy

• Sizing must account for active-passive or active-active cluster. In active-active, each unit handles ~50% traffic → each can be smaller.

1. The "Hidden" Bottleneck: Azure Instance Throughput

This is the most critical aspect of sizing that engineers miss. fortigate vm sizing azure

Network Interfaces (NICs): Sizing is often driven by the number of required interfaces rather than just CPU power. For example, the D2v2 instance type only supports 2 NICs, while D4v2 supports up to 8 NICs. Licensing Models: Sizing FortiGate-VM on Microsoft Azure Sizing a FortiGate-VM

4. Throughput Reality Check

Azure VM networking has a cumulative limit – all NICs share the same underlying bandwidth. fortigate vm sizing azure

Part 9: Cost Optimization Strategies

Sizing isn’t just about performance – it’s about spend. Here’s how to save money without breaking throughput.

are required if your architecture demands multiple segmented subnets or a complex Hub-and-Spoke design. 3. Aligning with FortiGate Licensing

| License Model | Sizing Impact | |---------------|----------------| | PAYG (Pay-As-You-Go) | Hourly billing includes FortiGate license. VM size limited to preselected series (e.g., D, E, F-series). Best for testing or low-to-medium throughput. | | BYOL (Bring Your Own License) | You buy FortiGate VM license separately (perpetual or subscription). Unlocked to almost any Azure VM size. Cheaper at scale but requires upfront commitment. |