In this post, I walk through the process of building reusable IRRd and bgpq4 container images that can be dropped into any network emulator that supports Docker containers, such as Containerlab, GNS3, or Kathará.
Five years after I first reviewed it, Containerlab has matured into a polished, developer-friendly platform with a rich ecosystem of tools built around it. In this post, I will revisit Containerlab and cover what has changed since my original review.
Use the Kathará network emulator to recreate one of the most famous BGP hijacking incidents in Internet history, the 2008 YouTube hijack. By building a small network topology and simulating a similar attack, you will learn both the fundamentals of Kathará and to gain hands-on experience with BGP security concepts.
In this annual update of my list of open-source network simulators and emulators, I check each projects’s activity level, verify the well-maintained projects, identify new projects that deserve attention, and consider projects that may be fading away.
The Cloonix network emulator continues to be actively developed. In version 53, it provides container support, a rootless installation option, experimental support for WiFi emulation, and a simplified user experience.
I recently read a very interesting post in which Urs Hölzle provided links to the recent papers from Google describing how they developed their datacentre network.
As of early 2024, my list of network simulation and emulation tools remains stable. This post provides the latest status of the tools I list in this blog.
A list of network simulators that meet the unique requirements of educators in secondary schools, who teach students aged 14 to 18.
I reviewed the development and support status of all the network emulators and network simulators previously featured in my blog, as of early 2023.