The process for adding this image differs slightly between the two primary emulation platforms, GNS3 and EVE-NG.
If you simulate 20+ switches on a laptop, apply these tweaks:
, including the 15.2d image, is a direct port of the IOS code to Linux. Because it runs as a native application, it is incredibly lightweight. You can run dozens of these switches on a modest laptop without maxing out your RAM or CPU, making it the gold standard for large-scale CCIE-level labbing. Key Features and Capabilities i86bi-linux-l2-adventerprisek9-15.2d.bin
: MAC address limiting, sticky MACs, and violation actions.
The file is a highly popular Cisco IOS on Unix (IOU) Layer 2 image used by network engineers to simulate Cisco switch behaviors in virtual lab environments like GNS3, EVE-NG, and PNETLab. The process for adding this image differs slightly
: It compiles the Cisco IOS source code to run as a native user-space program on standard x86 Linux operating systems.
Eve-NG treats IOL images as lightweight alternatives to heavy QEMU/KVM virtual machines. You can run dozens of these switches on
Building a network topology for testing, validation, or certification studies requires robust simulation tools. In the world of Cisco emulation, stands out as a highly efficient Cisco IOS on Unix (IOU) image specifically tailored for Layer 2 (switching) operations.
Network engineers use this image to practice switch configurations, build complex Spanning Tree Protocol (STP) topologies, test VLAN designs, and emulate Data Center or Campus LAN environments without needing thousands of dollars worth of physical hardware.