Mininet is a Linux-based network emulator which enables the prototyping, development and sharing of OpenFlow and Software-Defined Networking (SDN) networks. Given the growing importance of these networking technologies, Mininet has potential as a teaching tool in the IT lab. This post describes how to get Mininet running in KVM on CentOS 7, and introduces some basic commands and workflows.
Mininet is a Linux-based network emulator which enables the creation of a realistic virtual network, running real kernel, switch and application code, on a single machine (VM, cloud or native), in seconds, with a single command. It is a great way to develop, share, prototype, research, teach and experiment with OpenFlow and Software-Defined Networking systems.
It is no secret that most corporate and industrial computing resources in the world today have now been migrated from physical infrastructure to a combination of public, private and hybrid cloud environments. A similar trend is now under way in the networking space, with network control logic shifting from proprietary hardware-based platforms to open source software-based platforms (SDN or Software Defined Networking).