~/talk

AnyPro: Preference-Preserving Anycast Optimization based on Strategic AS-Path Prepending

Talkat NSDI '26 · 2026-05-04..05-06· [networking]
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name:Yifei Xu
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name:Pan Hu
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name:Jie Lin
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name:Songwu Lu
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name:Wan Du
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AnyPro is a system that uses AS-path prepending and an ICMP probing testbed to derive constraint-based ASPP settings that steer clients to preferred PoPs. It discovers ASPP-sensitive clients with max-min polling, formulates a weighted max-satisfaction optimization, and resolves conflicting constraints via iterative binary tightening. Deployed on a global 20 PoP testbed, it drives 90th-percentile RTT down (examples: baseline 271 ms, AnyPro 58 ms), and reports large preference-alignment gains.

AI-written summary · about

  1. 0:00AnyPro introduction
  2. 1:24Anycast deployment challenges
  3. 4:37AS path prepending mechanism
  4. 6:25Preference alignment optimization
  5. 9:14AnyPro probing system
  6. 13:46AnyPro performance benefits
  7. 16:16Theory versus real-world RTT
  8. 17:42ML comparison and summary
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