Highly compatible with Cisco-like CLI; often used in data center labs.

If your employer has a valid Cisco support contract, you may be authorized to download specific virtual images from the Cisco Software Download site. 3. Step-by-Step: Adding a Layer 2 Switch to GNS3

To build a complete networking lab in GNS3, obtaining a functional is a critical step. Unlike routers, switches are hardware-based and more complex to emulate, which is why GNS3 does not come pre-packaged with Cisco IOS switch images. 1. Key Layer 2 Switch Options for GNS3

Visit the GNS3 Marketplace and download the Cisco IOSvL2 appliance file ( .gns3a ).

A Linux-based NOS (Network Operating System) for high-end switching. Cisco IOU L2 - GNS3

When prompted for the missing software, click Import and select the .qcow2 or .vmdk file you legally acquired.