All news & events
ns-3 is a discrete-event network simulator for Internet systems, targeted primarily for research and educational use. ns-3 is free software, licensed under the GNU GPLv2 license, and is publicly available for research, development, and use.
Download latest release:
Most recent stable release
(currently ns-3.13)

Older archived releases:

box

Documentation:
Most recent stable release
(currently ns-3.13)

Project documentation:

box

Developers:

Building a great network simulator for research and education requires many contributions from the networking community.