LightGuardian: A Full-Visibility, Lightweight, In-band Telemetry System Using Sketchlets
summary
LightGuardian is an in-band network telemetry system that embeds tiny constant-sized data structures called sketchlets into packet headers to collect per-flow, per-hop information across the network. It introduces a new SuMax sketch (splittable into sketchlets) carried by packets to end-hosts for aggregation and reconstruction, and the authors implemented a prototype on programmable switches and end-hosts in a FatTree testbed to evaluate accuracy, latency (1.0–1.5 s), and very low bandwidth overhead (≈0.07%).
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chapters (7)
- 0:00Start
- 0:30Background
- 2:17LightGuardian Overview
- 4:18Device-local Sketch Design: SuMax
- 6:39Transmission of Sketchlets
- 8:50Reconstruction and Analysis
- 9:50Experimental Results
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