Mininet review
A focused, free emulator for OpenFlow, Open vSwitch, and SDN experimentation.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Mininet is an open-source network emulator for networking research, development, teaching, prototyping, regression testing, and experimentation. It creates virtual hosts, switches, controllers, and links, then runs real Linux network software, kernel code, applications, and OpenFlow control-plane components. That makes it a focused option for teams and learners working with software-defined networking rather than a general-purpose discrete-event simulation environment. Topologies can be created through its CLI or an extensible Python API, with support for custom and parameterized designs.
Its strongest fit is the SDN workflow. The topology-aware and OpenFlow-aware CLI, OpenFlow controller support, Open vSwitch integration, remote-controller connectivity, and network-wide testing features support development and debugging around live control-plane behavior. Mininet also connects with P4 and Wireshark, while Linux network namespaces and virtual Ethernet links provide the underlying emulation model. Users can move from virtual experiments toward physical hardware, giving the tool a useful bridge between research prototypes and deployment-oriented testing. Choose Mininet when OpenFlow, Open vSwitch, controller behavior, or Python-driven topology automation is central to the work.
Pricing is straightforward: Mininet is free and open source, with no paid tiers described. The published product details identify server deployment and describe use through a single machine, virtual machine, cloud environment, or native Linux installation. Its scope is intentionally focused, so teams seeking a broader lab platform or a conventional discrete-event simulator should consider an alternative. Mininet is the better choice for controlled SDN experimentation, regression testing, and teaching; it is less suitable when the primary requirement is a wide simulation framework beyond its emulation model.
Mininet pros and cons
- Where it wins
- Free and open source with an extensible Python topology API
- Supports virtual hosts, switches, links, controllers, and custom topologies
- Connects to remote controllers and supports a path toward hardware deployment
- Where it doesn't
- Emulation is narrower in scope than general-purpose lab platforms
- Uses Linux network namespaces and virtual Ethernet links
- Designed around server-based deployment and Linux-based network software
Mininet fact sheet, pricing and score →
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