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Aquila: A unified, low-latency fabric for datacenter networks

on YouTube 15m
Talkat 19th USENIX Symposium on Networked Systems Design and Implementation (NSDI '22) · 2022-04-04..04-06· [networking]

speakers

name:Dan Gibson
links:none on file
name:Hema Hariharan
links:none on file
name:Eric Lance
links:none on file
name:Moray McLaren
links:none on file
name:Behnam Montazeri
links:none on file
name:Arjun Singh
links:none on file
name:Stephen Wang
links:none on file
name:Hassan M. G. Wassel
links:none on file
name:Zhehua Wu
links:none on file
name:Sunghwan Yoo
links:none on file
name:Raghuraman Balasubramanian
github:Raghuraman-24
name:Prashant Chandra
links:none on file
name:Michael Cutforth
links:none on file
name:Peter Cuy
links:none on file
name:David Decotigny
links:none on file
name:Rakesh Gautam
links:none on file
name:Alex Iriza
links:none on file
name:Milo M. K. Martin
links:none on file
name:Rick Roy
links:none on file
name:Zuowei Shen
links:none on file
name:Ming Tan
website:https://www.derektanmingsiang.com
name:Ye Tang
links:none on file
name:Monica Wong-Chan
links:none on file
name:Joe Zbiciak
links:none on file
name:Amin Vahdat
linkedin:vahdat

resources

video:https://youtu.be/YiRDNNjVVrA
slides:none on file

summary

Aquila builds a unified datacenter fabric using a GNet cell-based L2 protocol, a custom Tin/TORonic ASIC and integrated switch, and Dragonfly topology with 40 pods (~1,000 hosts) to cut cost and blast radius. It uses shallow-buffer cell switching, credit-based flow control, virtual channels, adaptive routing, and PCIe-integrated RMA protocol engines. Measured results show sub-10 microsecond RMA execution and 40 microsecond tail RTT for IP at scale, and a >5x tail-latency reduction for a co-designed key-value store.

AI-written summary · about

chapters (13)

  1. 0:00Intro
  2. 0:48A call for new Datacenter Architecture
  3. 1:34Cliques as a Datacenter Building Block
  4. 2:26Introducing Aquila
  5. 3:10Design Goals
  6. 4:01Cost-effective Topology: Dragonfly[1]
  7. 6:55Building TIN
  8. 8:38Life of a Packet
  9. 10:11Experimentation Setup
  10. 11:061RMA and IP Uniform Random Latency
  11. 11:36Latency Isolation in Aquila
  12. 12:42What does that mean for E2E application metrics?
  13. 13:03Retrospective

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