How can I calculate supported maximum PPS (Packets Per Second) of UTM appliance?
Description
To calculate the PPS (Packets Per Second) capability of a firewall, use the throughput rating from the product specification sheet. This method provides an estimated PPS value based on the default MTU size of 1500 bytes and can be used for both Threat Prevention and Firewall Inspection throughput values.
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EXAMPLE:
- The NSA 2800 supported Threat prevention throughput is 6 Gbps, which represents the aggregate bandwidth processed in both directions simultaneously.
6 Gbps = 6000 Mbps = 6,000,000,000 bits =6,000,000,000/8 = 750,000,000 Bytes
Default MTU size is 1500, then divide 750,000,000 by 1500 bytes
750,000,000/1500= 500,000 Packets per second
The NSA 2800, using Threat Prevention, can process 500,000 packets per second. - The NSA 2800 supported Firewall Inspection throughput is 8 Gbps, which represents the aggregate bandwidth processed in both directions simultaneously.
8 Gbps = 8000 Mbps = 8,000,000,000 bits = 8,000,000,000/8 = 1,000,000,000 Bytes
Default MTU size is 1500, then divide 1,000,000,000 by 1500 bytes
1,000,000,000/1500= 666,666 Packets per second
The NSA 2800, using Firewall Inspection, can process 666,666 packets per second.
| Throughput | Supported PPS |
| 300 Mbps | 25,000 |
| 500 Mbps | 41,667 |
| 600 Mbps | 50,000 |
| 750 Mbps | 62,500 |
| 800 Mbps | 66,667 |
| 1 Gbps | 83,333 |
| 1.5 Gbps | 125,000 |
| 2 Gbps | 166,667 |
| 2.5 Gbps | 208,333 |
| 3 Gbps | 250,000 |
| 3.5 Gbps | 291,667 |
| 4 Gbps | 333,333 |
| 4.5 Gbps | 375,000 |
| 5 Gbps | 416,667 |
| 5.5 Gbps | 458,333 |
| 6 Gbps | 500,000 |
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