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Explore a research presentation from NSDI '25 that introduces eTran, an innovative system designed to make kernel transport extensible for implementing and customizing diverse transport designs. Learn how researchers from Tsinghua University, Nanjing University, Harvard University, and UC Berkeley/UC Davis address the challenge of evolving datacenter networks with diverse application demands by leveraging and extending eBPF-based techniques to safely customize kernel transport functionalities. Discover how eTran incorporates user-space transport techniques for performance improvements while maintaining robust protection, and examine the implementation results showing TCP with DCTCP congestion control and Homa achieving up to 4.8×/1.8× higher throughput with 3.7×/7.5× lower latency compared to existing kernel implementations.
