~/talk

CStar Gateway: Augmenting Public Cloud Infrastructure for Heterogeneous Network...

on YouTube 18m
Talkat NSDI '26 · 2026-05-04..05-06· [networking, cloud-infrastructure]

speakers

name:Haonan Li
links:none on file
name:Tian Pan
links:none on file
name:Jin Ke
links:none on file
name:Baohai Hu
links:none on file
name:Changgang Zheng
links:none on file
name:Enge Song
links:none on file
name:Zhi Xu
links:none on file
name:Ye Yang
links:none on file
name:Bowen Yang
links:none on file
name:Donglin Lai
links:none on file
name:Yisong Qiao
links:none on file
name:Bengbeng Xue
links:none on file
name:Jianyuan Lu
links:none on file
name:Xiaoqing Sun
links:none on file
name:Shize Zhang
links:none on file
name:Zihao Fan
links:none on file
name:Mingxin Li
links:none on file
name:Yang Song
links:none on file
name:Jun Liang
links:none on file
name:Xionglie Wei
links:none on file
name:Biao Lyu
links:none on file
name:Rong Wen
links:none on file
name:Zhigang Zong
links:none on file
name:Jiao Zhang
links:none on file
name:Tao Huang
links:none on file
name:Shunmin Zhu
links:none on file

resources

video:https://youtu.be/OElpdlC1v1A
slides:none on file

summary

CStar Gateway shifts NF VM multi-tenancy from the vSwitch into each NF VM using a Tofino-based stateless gateway and GENEVE+VXLAN nested tunneling so each NF VM needs one vNIC and the vSwitch sees far fewer sessions. Bandwidth- and elephant flows get redirected to an FPGA processing cluster for line-rate handling, while NF VMs retain stateful elasticity. Deployment shows CPU and I/O utilization rise at least 5x, NFVM count falls by ~80–94–91% across zones, and capex drops 71.91%–88.57%.

AI-written summary · about

chapters (7)

  1. 0:00CStar Gateway intro and NFV challenges
  2. 1:22Current NFV architecture issues
  3. 4:17Four resource mismatch scenarios
  4. 7:27CStar Gateway architecture
  5. 9:13Three design components
  6. 14:15Evaluation results and performance
  7. 16:22Cost impact and benefits

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