: Assign 512MB RAM and 1 vCPU . Increasing RAM beyond this usually doesn't improve performance for basic routing labs.

: Faster neighbor adjacency establishment in OSPF and BGP.

While many third-party sites offer direct downloads, it is critical to understand the legal and secure methods of obtaining Cisco software. 1. Cisco Modeling Labs (CML)

Educational communities often provide guidance on importing these images into or GNS3 . If you have acquired the .vmdk file, you will likely need to convert it to the .qcow2 format for use in QEMU-based emulators. Installation and Setup Tips

: Optimized to run with as little as 512MB of RAM per node.