: When building complex topologies, remember to save your running configurations ( write memory ) before shutting down the virtual machines, or your work will be lost.

Create a new directory following EVE-NG's strict naming conventions (e.g., vios-adventerprisek9-m.156-2.t ). Upload your file into that folder.

If you are looking to narrow down your lab setup, let me know:

: VIOS L3 images are lightweight. They usually only require 512MB of RAM per node. This allows you to run dozens of routers on a modern laptop.

Use an SSH and SFTP client (like WinSCP or FileZilla) to connect to your EVE-NG server. Navigate to /opt/unetlab/addons/qemu/ .

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