Skip to main content

What Does GNS3 Do? Expanin the Advatages and Disadvantages of it


What Does GNS3 Do?


Compared to other network simulator programs (RouterSim, Boson NetSim), you can use Cisco IOS images more specifically with the back-end Hypervisor software through this network simulator program.


What Does GNS3 Do? Expanin the Advatages and Disadvantages of it



Other software includes network devices such as Routers or Switches. As a result, you can run and use a real Cisco Router on your computer with GNS3.


This simulator software uses IDLE-PC Value to show better performance of Cisco Routers or Switch IOS and shows you the optimal value with * character.


You can set the Idle-PC value when adding a device to the program.


Network Simulator Program Term


GNS3 : → GUI (Graphical User Interface)


Dynamips : → Emulator for IOS


Dynagen : → Beginning Front End for Dynamips


Pemu : → Cisco PIX Firewall Emulator Based on Qemu


(Win)Pcap : → Packet Capture Library (Driver for Sniffer)


Wireshark : → Network Monitoring / Listening to Network


VPCS : → Adding a virtual computer.


VMware VMS : VMware Virtual Machines → Including virtual machines in topology with VMware Workstation.


VirtualBox VMS : VirtualBox Virtual Machines → Including virtual machines in topology with VirtualBox.


IOU Device : A real Layer2 and Layer3 Switch lets you use all the features of your network device by adding an IOS image.


Advantages


  • After making the GNS3 definition, let’s examine what the advantages are.

  • Free software.

  • Open Source software.

  • No monthly or annual license fees.

  • There is no limit to the number of supported devices (only the limitation is your hardware: CPU and memory).

  • Supports multiple switching options (ESW16 Etherswitch, IOU / IOL Layer 2 images, VIRL

  • Supports all VIRL IOS images (IOSv, IOSvL2, IOS-XRv, CSR1000v, NX-OSv, ASAv).

  • Supports devices of many brands.

  • It can be run without hypervisor

  • Supports both free and paid hypervisors.

  • No need for additional virtualization software.

  • Large and active community (more than 800,000 members).


Disadvantages


  • IOS images are downloaded by the user. (You can download it from Cisco.com and purchase a VIRL license).

  • You need to manually add the Router/Switch images you download.

  • The program runs based on the hardware performance of your computer.

Labels:

Comments

Post a Comment

Popular posts from this blog

How to Reset Steam Password? – Recover Your Steam Password

Are you suffering with Reset Steam Password? This blog will help you. What is Steam? Steam is the online website for getting the best games for paid. If you are a true game lover then you should have an active account on Steam. Many of people lost their password during the  PC clean-up  or any other circumstances. At that time they have to reset Password of all accounts. Then if you facing issues with the password, you forced to Steam reset password to access the Steam account. We are going to share the guide that how to recover your forgotten Steam Password and make your existing account ready. First of all, you should have enough knowledge about what is Steam and why Steam Account required? Why Steam Account Requires? Before jump into password recovery and Login details, let me clear about why Steam Account required? There are several benefits of this Steam Account from where you can easily download PC games as well as software. Though it will be p...
Post a Comment
Read more

What is STP? - Explain Advantages and Disadvantages

The Spanning Tree Protocol is a network protocol that builds a loop-free logical topology for Ethernet networks. The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them. STP is a protocol. It actively monitors all links of the network. To finds a redundant link, it uses an algorithm, known as the STA (spanning-tree algorithm). The STA algorithm first creates a topology database then it finds and disables the redundant links. Once redundant links are disabled, only the STP-chosen links remain active. If a new link is added or an existing link is removed, the STP re-runs the STA algorithm and re-adjusts all links to reflect the change. STP (Spanning Tree Protocol) automatically removes layer 2 switching loops by shutting down the redundant links. A redundant link is an additional link between two switches. A redundant link is usually created for backup purposes. Just like every coin has two sides, a redundant link, along with...
5 comments
Read more