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ZooRoute: Enhancing Cloud-Scale Network Reliability via Candidate Path Provisioning...

on YouTube 12m
Talkat NSDI '26 · 2026-05-04..05-06· [networking, cloud-infrastructure]

speakers

name:Xiaoqing Sun
links:none on file
name:Xing Li
links:none on file
name:Xionglie Wei
links:none on file
name:Tian Pan
links:none on file
name:Ju Zhang
links:none on file
name:Bowen Yang
links:none on file
name:Yi Wang
links:none on file
name:Ye Yang
links:none on file
name:Yu Qi
links:none on file
name:Le Yu
links:none on file
name:Chenhao Jia
links:none on file
name:Zhanlong Zhang
links:none on file
name:Xinyu Chen
links:none on file
name:Xiaobo Xue
links:none on file
name:Jianyuan Lu
links:none on file
name:Shize Zhang
links:none on file
name:Enge Song
links:none on file
name:Yang Song
links:none on file
name:Rong Wen
links:none on file
name:Biao Lyu
links:none on file
name:Yang Xu
links:none on file
name:Shunmin Zhu
links:none on file

resources

video:https://youtu.be/NKXrwJ854cc
slides:none on file

summary

ZooRoute implements tenant‑transparent, underlay‑agnostic failover by changing the VXLAN outer source port and maintaining per‑destination candidate port sets probed proactively; it uses a bitmap and hierarchical indexing to compress Tofino state (about 15× compression), packet‑triggered register updates and loopback reinjection to avoid PCIe bottlenecks (about 1000× faster updates), and on‑host adaptive probing to cut CPU cost by >95%. Deployed 26 months at Alibaba Cloud, it achieves one-shot deterministic reroute, reduces cumulative outage time by 93.19% and masks 98.21% of failures, typically recovering within 1–3 seconds.

AI-written summary · about

chapters (9)

  1. 0:00ZooRoute introduction and goals
  2. 1:22Network failure recovery challenges
  3. 2:46Candidate path provisioning idea
  4. 3:50ZooRoute system architecture
  5. 4:35Scaling challenges and solutions
  6. 7:01Stateful middle boxes handling
  7. 8:24Production results effectiveness
  8. 9:49Limitations and lessons
  9. 10:52Summary and future directions

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