More about Gns3 Server
The local cisco switch ios for gns3 server runs locally on the PC where you installed the GNS3 all-in-one software. For example, if you are using a Windows PC, both the GNS3 GUI and the local GNS3 server are running as processes on Windows.If you decide to use a GNS3 VM (recommended), you can run the GNS3 VM locally on your PC using virtualization software such as GNS3 supports both emulated and emulated devices. Emulation: GNS3 emulates or emulates the hardware of a device and you run real images on the virtual device.
For example, you can clone Cisco IOS from a real, physical Cisco router and run it on a virtual, emulated Cisco router in GNS3. You are running a simulated device developed by GNS3, such as the built-in layer 2 switch, not real operating systems (like Cisco IOS). It is fine for basic CCNA-type topologies but has several limitations such as only supporting older Cisco IOS versions (12. X) that are not supported or actively updated by Cisco. Cisco images recommended for use with GNS3 are images from Cisco VIRL (IOSv, IOSvL2, IOS-XRv, ASAv). These images are supported and actively updated by Cisco. Images support current versions of Cisco IOS (15. A lot of it comes down to personal preference, with all solutions that offer some benefits and some disadvantages. The bad old days: today’s world is much better than in the past! Network engineers who used to study for CNAs, CCNPs, or CCIEs had only limited options: Buy or rent physical Cisco equipment for your training.
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