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61 lines
3.0 KiB
Markdown
61 lines
3.0 KiB
Markdown
## System Requirements
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### VM or physical server
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* For VMs, NIC passthrough is required for optimal throughput and latency (XDP vs generic XDP). Using Virtio / bridging is much slower than NIC passthrough. Virtio / bridging should not be used for large amounts of traffic.
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### CPU
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* 2 or more CPU cores
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* A CPU with solid [single-thread performance](https://www.cpubenchmark.net/singleThread.html#server-thread) within your budget. Queuing is very CPU-intensive, and requires high single-thread performance.
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Single-thread CPU performance will determine the max throughput of a single HTB (cpu core), and in turn, what max speed plan you can offer customers.
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| Customer Max Plan | Passmark Single-Thread |
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| --------------------| ------------------------ |
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| 100 Mbps | 1000 |
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| 250 Mbps | 1250 |
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| 500 Mbps | 1500 |
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| 1 Gbps | 2000 |
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| 3 Gbps | 3000 |
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| 10 Gbps | 4000 |
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Below is a table of approximate aggregate throughput capacity, assuming a a CPU with a [single thread](https://www.cpubenchmark.net/singleThread.html#server-thread) performance of 2700 or greater:
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| Aggregate Throughput | CPU Cores |
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| ------------------------| ------------- |
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| 500 Mbps | 2 |
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| 1 Gbps | 4 |
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| 5 Gbps | 6 |
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| 10 Gbps | 8 |
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| 20 Gbps | 16 |
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| 50 Gbps | 32 |
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| 100 Gbps * | 64 |
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(* Estimated)
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So for example, an ISP delivering 1Gbps service plans with 10Gbps aggregate throughput would choose a CPU with a 2500+ single-thread score and 8 cores, such as the Intel Xeon E-2388G @ 3.20GHz.
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### Memory
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* Minimum RAM = 2 + (0.002 x Subscriber Count) GB
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* Recommended RAM:
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| Subscribers | RAM |
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| ------------- | ------------- |
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| 100 | 4 GB |
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| 1,000 | 8 GB |
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| 5,000 | 16 GB |
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| 10,000* | 18 GB |
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| 50,000* | 24 GB |
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(* Estimated)
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### Server Recommendations
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It is most cost-effective to buy a used server with specifications matching your unique requirements, as laid out in the System Requirements section above.
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For those who do not have the time to do that, here are some off-the-shelf options to consider:
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| Aggregate | 100Mbps Plans | 1Gbps Plans | 4Gbps Plans |
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| ------------- | ------------- | ------------- | ------------- |
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| 1 Gbps Total | A | | |
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| 10 Gbps Total | B or C | B or C | C |
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* A | [Lanner L-1513-4C](https://www.whiteboxsolution.com/product/l-1513/) (Select L-1513-4C)
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* B | [Supermicro SuperServer 510T-ML](https://www.thinkmate.com/system/superserver-510t-ml) (Select E-2388G)
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* C | [Supermicro AS-1015A-MT](https://store.supermicro.com/us_en/as-1015a-mt.html) (Ryzen 9 7700X, 2x16GB DDR5 4800MHz ECC, 1xSupermicro 10-Gigabit XL710+ X557)
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