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Cost-effective Cloud Edge Traffic Engineering with Cascara

on YouTube 12m
Talkat NSDI ’21 · 2021-04-12..04-14· [networking, web-performance]

speakers

name:Rachee Singh
speakerdeck:racheesingh
name:Sharad Agarwal
links:none on file
name:Matt Calder
links:none on file
name:Paramvir Bahl
links:none on file

resources

video:https://youtu.be/dnCOkDyy2no
slides:none on file

summary

Paper proposes Cascara, an online cloud-edge traffic-engineering controller that uses IPFIX flow records, BMP route data, and peering rates to solve a mixed-integer linear program approximating non-linear 95th-percentile billing. Evaluated on production demands of a commercial cloud, offline optimization shows ≈55% cost reduction potential and Cascara achieves 11–50% savings per PoP while restricting added client latency to about 3 ms by shifting traffic among latency-equivalent peer links.

AI-written summary · about

chapters (6)

  1. 0:00Start
  2. 0:34Inter-domain bandwidth costs
  3. 3:22Optimizing cloud bandwidth costs is hard
  4. 4:26Empirical insights can reduce problem scale
  5. 6:35Computing the best case cost savings
  6. 9:53Latency-equivalent links for outbound TE

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