Fortinet's cloud firewall ditches custom ASICs for Amazon's Graviton CPUs
Whether Fortinet somehow managed to achieve consistent performance across on-prem and cloud deployments by going the cloud native route or opting for Amazon’s Arm cores remains unclear. Pressed on any performance delta between its on-prem and cloud capabilities, Fortinet provided the following vague statement. “We’re running FortiGate-VMs that deliver very-high firewall throughput performance.
. And a peek at AWS Graviton instances offers some clues as to what the upper limits of Fortinet’s new cloud firewalls may be. Amazon’s largest Graviton instance — the 64-core, 128GB c7g.16xlarge — maxes out at 30Gbps of network bandwidth. That would put the maximum threat inspection on par with the FortiGate 3000F — a high-throughput firewall appliance aimed at hyperscale environments — but that’s assuming that the CPU can actually keep up. And even if it could, it wouldn’t be cheap. At $2.7/hour plus $0.031 per gigabyte inspected, 30Gbps worth of data flows would run a customer somewhere in the neighborhood of $420 an hour.
With that said, there’s still some merit to maintaining a consistent security stack across on-prem and cloud infrastructure. While all the major cloud providers offer some kind of firewalling functionality in house, employing them usually requires maintaining two separate security policies. Microsoft’s security wing this summerExtending an enterprises’ existing security stack to the cloud to minimize this potential has been a major selling point behind any number of virtualized or containerized firewalls, including those from Juniper, Palo Alto Networks, and in this case Fortinet.
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