Network Simulator

ns-3 is a discrete-event network simulator for Internet systems, targeted primarily for research and educational use. ns-3 is free, open-source software, licensed under the GNU GPLv2 license, and maintained by a worldwide community.

Recent News (Older)

  • ns-3.46 released

    The ns-3.46 release has been published. This release adds a new Zigbee groupcast and APS layer support, a new wraparound interference model for spectrum channels, and a new Wi-Fi simulation helper for static associations, and contains maintenance and small feature updates for the other modules, as listed in the release notes. This release is due to seventeen contributors, including six new contributors.

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  • ns-allinone-3.45 released

    A new ns-allinone-3.45 release, following the June ns-3.45 release has been published. The ns-allinone release series now bundles compatble extension modules with the mainline ns-3 release. Several contributed modules are maintained in the ns-3 App Store, and we plan to bundle those modules that are compatible with the release in an allinone release approximately one month after the mainline release. Users may now choose between these two different source archives. The list of contributed modules, which now includes the nr, lorawan, and several others, will be updated from release to release.

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  • ns-3.45 released

    The ns-3.45 release has been published. This release adds a new DHCPv6 model, 320 MHz channel support for Wi-Fi, improvements to the EMLSR model, and contains maintenance and small feature updates for the other modules, as listed in the release notes. This release is due to thirteen contributors, including five new contributors.

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Announcements

International Conference on ns-3 (ICNS3) 2025

Proceedings are now available for the International Conference on ns-3 (ICNS3). Many thanks to everyone who made it happen!

Google Summer of Code

Five students are participating in ns-3's Google Summer of Code program.
Find out more