A Composable Emulation Framework for Whitebox Switches

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" summary

MirSwitch composes a production SONiC control plane with a modified VPP data plane and virtualized peripheral modules using an adapter-centric design: EVPP (VPP extensions), a semantic adapter, and an environmental adapter. It implements one-to-many and many-to-one SAI↔VPP translations, injects fake EEPROM/platform info to load real BSP drivers, and matches ECMP hash behavior. Evaluation shows 506K PPS per VM (3K PPS per port), 2.2× speedup vs. software baselines, 89.5% support across 157 functions, and deployment at Tencent troubleshoots 97.5% of 203 real issues.

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" chapters (13)

1. 0:00Project introduction
2. 1:01Motivations for whitebox emulation
3. 4:56Emulation challenges
4. 6:19Merged Switch design
5. 8:53Semantic adapter
6. 11:21Environment adapter
7. 12:03Evaluation setup
8. 13:09Switch fidelity
9. 13:51Throughput and scalability
10. 15:18Network fidelity
11. 16:47Production integration
12. 17:53Fidelity vs performance trade-offs
13. 19:00Conclusion

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