Breaking the Transience-Equilibrium Nexus: A New Approach to Datacenter Packet Transport

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" summary

Presents On-Ramp, an underlay algorithm that intercepts and temporarily holds packets at the datacenter edge to handle transient overloads while leaving existing congestion-control protocols (CUBIC, BBR, DCQCN, TIMELY, DCTCP, HPCC) to manage equilibrium. On-Ramp detects transients using software one-way delay measurements enabled by a time‑synchronization algorithm and is evaluated on Google Cloud, CloudLab, and ns-3, showing large reductions in 99th‑percentile request completion times and improved flow completion for background traffic.

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" chapters (5)

1. 0:00Start
2. 0:39Evolution of Data Center Congestion Control (CC) Algorithms & Transport Protocols
3. 2:16Why decoupling the handling of transience and equilibrium?
4. 8:56Evaluation Highlights (more in the paper)
5. 9:48Evaluation in Facebook: Highlights Imore in the paper

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