Each node in the virtual network is also connected to an “out of band” management network so you can configure and manage it. On each side of this emulated network, you will create virtual machines acting as a user and as a server, so you can test the emulated network’s operations.
The example I created for this post consists of three virtual machines serving as routers connected to each other in a ring topology. However, once you understand its operation, you may use Libvirt to create large, complex network topologies intended to emulate real-world network scenarios.
It is available in almost every Linux distribution.Īs you work through the examples in this post, you will create a very simple network topology which is intended to demonstrate the use of Libvirt and other virtualization tools to build a network emulator and is not intended to emulate a real-world network. It is already used as a basis for some existing network emulators, and other applications and tools. Libvirt provides a command-line interface that hides the low-level virtualization and networking details, enabling one to easily create and manage virtual networking scenarios. As I do so, I will share what I have learned about network virtualization on a Linux system. In this post, I demonstrate how to create a network emulation scenario using Libvirt, the Qemu/KVM hypervisor, and Linux bridges to create and manage interconnected virtual machines on a host system.
0 kommentar(er)
