Graphical Network Simulator-3

Graphical Network Simulator-3
Graphical Network Simulator-3
Developers	Jeremy Grossmann, Dominik Ziajka, Piotr Pękala
Release	2008; 18 years ago
Stable release	3.0.6 / 28 January 2026; 9 months ago
Written in	Python
Type	Network simulator
License	GNU GPL
Website	gns3.com
Repository	github.com/GNS3/gns3-server ;

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

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.

References

↑ "Release 3.0.6". 28 January 2026. Retrieved 7 April 2026.
1 2 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. {{cite conference}}: |chapter= ignored (help)
↑ Neumann, Jason C. (2015). The Book of GNS3: Build Virtual Network Labs Using Cisco, Juniper, and More. No Starch Press. ISBN 9781593276959. gns3 book.
↑ Welsh, "RedNectar" Chris (2013). GNS3 Network Simulation Guide. Packt Publishing Ltd. ISBN 9781782160816.
1 2 Fogarty, Susan. "GNS3 Network Simulator Raises Its Game". Network Computing. UBM Tech. Archived from the original on 30 May 2015. Retrieved 30 May 2015.

External links

Official website

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[wikidata-3d79d8e2daed0d70fc89605856a257cc41bb6f4a-v22-1] "Release 3.0.6". 28 January 2026. Retrieved 7 April 2026.

[sam-2] 1 2 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. {{cite conference}}: |chapter= ignored (help)

[Neumann2015-3] Neumann, Jason C. (2015). The Book of GNS3: Build Virtual Network Labs Using Cisco, Juniper, and More. No Starch Press. ISBN 9781593276959. gns3 book.

[Welsh2013-4] Welsh, "RedNectar" Chris (2013). GNS3 Network Simulation Guide. Packt Publishing Ltd. ISBN 9781782160816.

[fogarty-5] 1 2 Fogarty, Susan. "GNS3 Network Simulator Raises Its Game". Network Computing. UBM Tech. Archived from the original on 30 May 2015. Retrieved 30 May 2015.