PNETLab 5.3.11 is mature, fast, and stable. Download the ISO today, and build a lab that would cost $100,000 in real hardware—for free.
You’re teaching a class on OSPF multi‑area design. The lab has 4 core routers (baseline) and 6 edge routers that are only needed when students run the “full convergence” exercise. Setup in Pnetlab 5.3.11: Pnetlab 5.3.11
This version introduced more aggressive memory ballooning. Disable it globally: System > Preferences > QEMU > Disable Memory Ballooning (Check) > Save . PNETLab 5
: Continues to be a highlight for users, allowing for easy image downloads and installation directly into the platform. PNETLab 5.3.11 is mature