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Open Source · UC Santa Cruz

Community

Connect with the researchers and developers behind NSB — open-source, peer-reviewed, built at UC Santa Cruz.

CONNECT

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GitHub Repository

Star, fork, and contribute to the source code.

GitHub Discussions

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Contact the INRG research team directly.

Learn about the INRG lab and project contributors.

RESEARCH

Research Background

NSB is backed by peer-reviewed research from UC Santa Cruz.

ACM Middleware 2026

NSB2: An Open-Source Modular Pipeline for Application-Network Co-Simulation

The foundational paper describing the NSB architecture, performance benchmarks against ns-3 and OMNeT++, and scalability limits.

ACM MobiCom 2023

Initial Proof of Concept

The original publication that introduced the concept of decoupled application-network simulation bridging.

About the Project

NSB was developed by Ph.D., M.S., and undergraduate students (past and present) at the UC Santa Cruz Internetworking Research Group (INRG) to address a common challenge in network research: testing real application protocols over realistic simulated network conditions.

The earliest use cases were decentralized federated learning over simulated wireless networks and autonomous vehicle platooning with V2V/V2X communication modeled in network simulation.

Special thanks to the UC Open Source Program Office (UC OSPO) in the Center for Research in Open Source Systems (CROSS) at UC Santa Cruz.

Maintainer

Harikrishna Kuttivelil

for collaboration, citation, and feedback

hkuttive@ucsc.edu

UC OSPO · UC Santa Cruz INRG · Beta 2026