I have interpreted your request as an academic-style white paper analyzing the technical, operational, and legal implications of modifying ("repacking") the Cisco CSR 1000V QCOW2 image (csr1000vucmk9.16.12.1.b.serial.qcow2).
*Oct 12 07:12:41.283: %PLATFORM-5-SIGNATURE_VERIFIED: Image signature verified successfully
Use an SFTP client (like FileZilla or WinSCP) to upload your .qcow2 file to the directory created above. Once uploaded, you must rename the file to virtioa.qcow2 so the emulator recognizes it as the primary disk.
Default unlicensed throughput is typically limited to 1 Mbps or 2.5 Mbps, though evaluation licenses can boost this to 10 Gbps for 60 days. Why 16.12.1b is Considered "Best" Cisco CSR1000v - GNS3