Thousands of network engineers use GNS3 to
mimic, configure, test, and troubleshoot both virtual and physical networks
globally. gns3 labs enable you to run a variety of topologies, from
those with a small number of devices hosted on your laptop to those with many
devices hosted on numerous servers or even in the cloud.
GNS3 provides a variety of IOS emulation
options. In order to replicate some Cisco hardware for older images, we use and
maintain Dynamips. IOS images can be executed natively on Dynamips. A second
class of ...
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