TANGO: Secure Collaborative Route Control across the Public Internet
Talkat 21st USENIX Symposium on Networked Systems Design and Implementation (NSDI '24) · 2024-04-16..04-18·
summary
TANGO demonstrates that coordinated edge networks can uncover and use hidden BGP paths: bgp Pathfinder finds a median of three paths (up to 10–12) for many node pairs and adds communities to expose each path. A lightweight TANGO header on switches or eBPF captures one‑way latency and loss; cryptographic protection uses a book cipher one‑bit signature to detect hijacks at line rate. Implementations on programmable switches sustain 100 Gbps and show latency reductions up to 39% versus default BGP.
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chapters (7)
- 0:00Collaborative route control intro
- 2:21Path diversity challenges
- 6:28Measuring path performance
- 8:53Secure one-way measurements
- 10:36Route control decisions
- 11:40Evaluating Tango in real paths
- 13:47Conclusion
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