Download Switch IOS for GNS3

Gns3 IOS for Switch:

In Gns3 by default there is no such option for creating switch topology, but you can use the router as a switch with NM-16ESW module. There are number of IOS which can support NM-16ESW module, one of most common Switch IOS for GNS3 is 3600 series c3640.

Using this IOS you can perform different Gns3 labs like:   

You can download gns3 switch IOS from following link:

You learn how to use switch in GNs3.