Graphical Network Simulator-3

Graphical Network Simulator-3
DevelopersJeremy Grossmann, Dominik Ziajka, Piotr Pękala
Initial release2008; 18 years ago (2008)
Stable release
3.0.6[1]Edit this on Wikidata / 28 January 2026; 4 months ago (28 January 2026)
Written inPython
TypeNetwork simulator
LicenseGNU GPL
Websitegns3.com
Repository

Graphical Network Simulator-3 (shortened to GNS3) is a network software emulator first released in 2008.[2][3][4] It allows the combination of virtual and real devices, used to simulate complex networks. It uses Dynamips emulation software to simulate Cisco IOS.[2]: 55 [5]

GNS3 is used by many large companies including Exxon, Walmart, AT&T and NASA, and is also popular for preparation of network professional certification exams. As of 2015, the software has been downloaded 11 million times.[5]

References

  1. ^ "Release 3.0.6". 28 January 2026. Retrieved 7 April 2026.
  2. ^ a b Hassine, Jameleddine; Hamou-Lhadj, Abdelwahab (29–30 September 2014). "Toward a UCM-Based Approach for Recovering System Availability Requirements from Execution Traces". In Amyot, Daniel; Pau Fonseca i Casas; Mussbacher, Gunter (eds.). System Analysis and Modeling: Models and Reusability. 8th International Conference, SAM 2014. Vol. 8769. Valencia, Spain: Springer. pp. 48–63. ISBN 9783319117430.
  3. ^ Neumann, Jason C. (2015). The Book of GNS3: Build Virtual Network Labs Using Cisco, Juniper, and More. No Starch Press. ISBN 9781593276959. gns3 book.
  4. ^ Welsh, "RedNectar" Chris (2013). GNS3 Network Simulation Guide. Packt Publishing Ltd. ISBN 9781782160816.
  5. ^ a b Fogarty, Susan. "GNS3 Network Simulator Raises Its Game". Network Computing. UBM Tech. Archived from the original on 30 May 2015. Retrieved 30 May 2015.
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