Why gns3 labs are used from Dynamips Store's blog

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 switches and routers can be used with the brand-new GNS3 1.4. These are referred to as Routing and Switching virtual machines.

The main variations are

·       While gns3 labs are typically hosted in a virtual machine, IOS images are typically run in Dynamips.

·       IOS images require less processing power and memory, allowing you to accommodate more of them into a topology.

·       For the purpose of simulating real-world networks, GNS3 can import R+Svms, which are larger vendor Routing and Switching images.

·       Anyone can download and use the GNS3 network simulator because it is free and open-source software.

·       With authentic Cisco IOS images that have been mimicked by the application Dynamips, GNS3 operates.

GNS3 is essentially the GUI component of the whole thing. Users that utilize this GUI benefit from an intuitive user interface that enables them to create sophisticated labs with a wide range of compatible Cisco routers.

Dynamips is the program that actually performs the actual work of simulating the routers using actual IOS images. Most often, this is referred to as the back end of the entire operation, while Dynagen is known as the front end. The key reason for this is that Dynagen and Dynamips communicate with each other through a Hypervisor, which all combined makes the configuration process easier.

You now have a pretty strong, simple-to-use simulator after adding this increased usability and the GUI offered by GNS3.

Certain GNS3 Features That Are Supported

The following are some of the characteristics listed by the simulator on the GNS3 website:

·       creation of intricate and high-quality network topologies

·       PIX firewalls and other Cisco router platforms are emulated

·       Simulated switches for Ethernet, ATM, and Frame Relay

·       linking the virtual network to the outside world

·       GNS3 Supported Platforms for packet capture using Wireshark

·       The platforms that GNS3 currently supports are those ones.

You can have access to a sizable selection of equipment that can be utilized with GNS3 to construct your labs. This is unquestionably yet another fantastic element of the simulator.

As you are all aware, different Cisco device models each support a varying number of functionalities. They primarily concern the types of instructions that are allowed by the specific IOS you are using for that platform.