Getting a Cisco 2960 IOS image to work in GNS3 is a common request, but it's important to understand that the Cisco Catalyst 2960 is not natively supported by the Dynamips emulator used in GNS3 because it uses an ASIC-based architecture that is difficult to emulate.
While this guide focuses on GNS3, both EVE-NG Community Edition and ContainerLab have native support for the same IOL images. They often boot L2 switches more reliably. cisco 2960 switch ios download for gns3
This command only works on real switches. On an IOL L2 image, it may not exist. Instead, test Layer 2 features: Getting a Cisco 2960 IOS image to work
GigabitEthernet0/1, GigabitEthernet0/2…).Additional Resources