Use Containerlab to emulate open-source routers
This post will review how the Containerlab network emulator works with the FRR open-source router.
FRR
The Wistar network emulator
Wistar is an open-source network emulator originally developed by Juniper Networks and released under the Apache license. It simplifies the presentation of Juniper products on its graphical user interface by making the multiple VMs that make up each JunOS virtual router appear as one node in the network topology. Wistar also supports Linux virtual machines
Build a network emulator using Libvirt and KVM
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. As I do so, I will share what I have learned about network virtualization on a Linux system. Libvirt provides a command-line interface that