To simulate layer 2 and layer 3 switching, the community and GNS3 Documentation recommend these virtual images:
Supports almost all features found on an enterprise Catalyst 4500 switch, including Spanning Tree Protocol (STP), EtherChannel, 802.1Q trunking, VTP, IGMP snooping, and Layer 3 routing protocols (OSPF, EIGRP, BGP). 2. Cisco IOU/IOL (IOS on Unix / IOS on Linux)
You can pre-configure the switch here, but it is better to do it via the CLI after booting. Troubleshooting Common Issues cisco 4500 switch ios download for gns3
GNS3 (Graphical Network Simulator) is a popular network simulation tool used by network administrators and engineers to design, configure, and troubleshoot networks. To simulate a network with a Cisco 4500 switch, you need to download and install the IOS (Internetwork Operating System) image for the switch. Here's a step-by-step guide on how to download and install the Cisco 4500 Switch IOS for GNS3:
Extract the standalone vIOS-L2 or High-Iron (IOL) image files from the download package to use inside GNS3. Step-by-Step: Adding a Cisco Virtual Switch to GNS3 To simulate layer 2 and layer 3 switching,
: These are lightweight images often used in professional labs, though they are typically only available to Cisco employees and partners. How to Obtain Official Images
When you finally find an IOS download and try to run it, expect these pitfalls: Step-by-Step: Adding a Cisco Virtual Switch to GNS3
Browse your local files to select your legally acquired virtual switch image file (typically ending in .qcow2 or .vmdk ).