: For fully legitimate and secure learning environments, consider utilizing Cisco Modeling Labs (CML) , which provides authorized, unmodified, and regularly updated Cisco IOS XE, XR, and NX-OS images directly from the vendor.
In a lab setting, this version is known for being relatively efficient with RAM (requiring roughly 3GB to 4GB to boot comfortably). How to Deploy the QCOW2 Image Csr1000v-ucmk9.16.12.1b-serial.qcow2 REPACK
The image is built to run X86_64_LINUX_IOSD-UCMK9-M , which is a 64-bit Linux-based IOS XE software bundle. : For fully legitimate and secure learning environments,
cat Csr1000v-ucmk9.16.12.1b-serial.qcow2.* > Csr1000v-ucmk9.16.12.1b-serial.qcow2 consider utilizing Cisco Modeling Labs (CML)
Testing complex Enterprise Routing and Switching concepts without physical hardware.