
Description: Dynamips is an open-source Cisco router emulator that allows you to create virtual Cisco routers on your computer. It supports many Cisco IOS images and features like configuring virtual interfaces, routing protocols, access-lists, and more.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: GNS3 is an open source network software emulator that allows users to simulate complex networks and create virtual networks on their computer. It supports emulation of a variety of network devices and topologies.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API