GNS3 allows you to visualize, plan, test and troubleshoot network environments across any vendor platform at scale - without the need to directly interact with the network hardware. With the intuitive graphical interface, users can seamlessly connect all types of virtual interfaces to compose a real representation of networks. GNS3 runs on traditional PC hardware and may be used on multiple operating systems, including Windows, Linux, and MacOS X. Why should you use GNS3? + Real-time network simulation for pre-deployment testing without the need for network hardware + Test 20+ different network vendors in risk-free virtual environment + Create dynamic network maps for troubleshooting and proof of concept (POC) testing + Customized topologies and labs within GNS3 for network certification training