For network engineers and CCNA/CCNP candidates, the Cisco Catalyst 2960 series is a staple platform for learning switching concepts like VLANs, STP, EtherChannel, and port security. However, when using GNS3 (Graphical Network Simulator-3), a common hurdle arises: GNS3 does not natively emulate real switch ASICs.
show vlan brief
show interfaces trunk
show spanning-tree summary
Cisco 2960 Switch IOS Versions
Reliability: IOSvL2 is considered more stable than older Dynamips-based "EtherSwitch" modules, which often had buggy command implementations. How to Legally Obtain Images cisco 2960 switch ios download for gns3
The recommended virtual multilayer switch image. It provides nearly all Layer 2 and Layer 3 features. Cisco IOU (IOS on Unix): Running Cisco Catalyst 2960 Switches in GNS3: A