ETC: An Elastic Transmission Control Using End-to-End Available Bandwidth...

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" summary

ETC claims a new congestion signal: the pulling rate, measured from the instantaneous receipt rate of N-packet microbursts, and uses a convex elastic step function to update send rate. Implementation is C++ user-space over UDP, shipped as an SDK in Tencent X P2P and tested between servers in Beijing, Shenzhen, Mumbai and Virginia. Results show ~15% higher throughput than Copa, ~20% lower latency than BBR, near-zero rebuffer at 60 Mbps (2% at 15 Mbps), and a 10× improvement in convergence time.

AI-written summary · about

" chapters (16)

1. 0:00ETC overview
2. 0:42Congestion control targets
3. 2:05Limitations of mainstream signals
4. 3:48Current design limitations
5. 5:14ETC design principles
6. 6:40Pulling rate as signal
7. 8:04Challenges in pulling rate data
8. 9:53Fine-grained clocking with ACKs
9. 10:56Rate acceleration in ETC
10. 12:22Rate deceleration in ETC
11. 13:48ETC implementation
12. 14:33ETC vs state-of-the-art
13. 16:01ETC fairness and speed
14. 17:06Compatibility with Cubic
15. 17:49ETC in video apps
16. 18:53Summary of ETC

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