The image is a specialized Cisco IOL (IOS on Linux) Layer 2 switch image. It is widely used by network engineers and students for building complex switching topologies in virtual lab environments like EVE-NG and GNS3 . What is Cisco IOL (IOS on Linux)?
Everything You Need to Know About the i86bi-linuxl2-adventerprisek9-m-152-may-2018.bin Image
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A: IOU (IOL) is the older, lighter Linux binary. IOSv is the newer, QEMU-based virtual machine. IOU is faster for L2 switching; IOSv is more feature-complete for L3.