**GNS3环境部署下载安装一步到位**
GNS3是一款具有图形化界面可以运行在多平台(包括Windows, Linux, and MacOS等)的网络虚拟软件。Cisco network device administrator or want can be done by the relevant experiments to simulate the actions stakeholders CCNA, CCNP, CCIE and other Cisco certification exam through it. It also can be used for virtual experience Cisco IOS IOS or test to be deployed configuration implemented on a real router.
简单说来它是dynamips的一个图形前端，相比直接使用dynamips这样的虚拟软件要更容易上手和更具有
可操作性。
下面我们来对GNS3进行安装（安装包可以评论找我获取，带链接的话文章会被删掉）。
下载好安装包后，我们点开安装包进行下一步操作：
wireshark installed. 
We can see the two icons. 
This will be the first time to enter the Welcome screen, you can choose not prompt. 
This was asked if we save this path, because now we do not have work, so it does not matter you can fork out first, there will be a follow-up to save the screen that appears. 
We operate according to the picture prompts to install the router proceeds 
Select this to configure up to 
ask if we install it, of course, choose YES 
to save the same path do not make any changes 
if IDLE value not calculated, GNS3 running will take a lot of CPU cause the computer to run slowly Caton . 
We can see the router has finished loading 
can work.
Let's calculate the value IDEL, GNS3 in the working environment in the 
right-click to select the selected target 
attention to the selection with the optimal value, with a choice of values. 
carry out! ! ! There can not clear a small partners or comment on private letters asking me oh
！