Switches in Mininet are software-based switches like Open vSwitch or the OpenFlow reference switch. The Mininet "Host" will have its own private network interface and can only see its own processes. In Mininet, hosts are emulated as bash processes running in a network namespace, so any code that would normally run on a Linux server (like a web server or client program) should run just fine within a Mininet "Host". Mininet creates virtual networks using process-based virtualization and network namespaces - features that are available in recent Linux kernels. OpenFlow-based network controllers prototyped in Mininet can usually be transferred to hardware with minimal changes for full line-rate execution. Mininet is useful for interactive development, testing, and demos, especially those using OpenFlow and SDN. To create a sample two-host, one-switch network, just run: Mininet emulates a complete network of hosts, links, and switches on a single machine.
The best way to emulate almost any network on your laptop! Mininet: Rapid Prototyping for Software Defined Networks
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