Frenetic HelloSDNWorld

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HelloSDNWorld

实验环境：

Frenetic虚拟机：

实验步骤：

1.Start up a terminal window - – two are provided in the VM under Accessories: Byobu Terminal (which integrates nicely with tmux) and LXTerminal (which has graphical tabs). Either one will do.

打开一个终端。

注意，这里打开的终端，需要是Byobu Terminal或者是LXTerminal，不能是其他类型的Terminal。

2.Start up a Mininet sample network with a switch and 2 hosts:

$ sudo mn --topo=single,2 --controller=remote

使用Mininet创建有两个交换机的网络拓扑。

3.Try pinging the host h2 from the host h1:

$ h1 ping h2 

Unfortunately, the ping won't work because you don't have an SDN network program in place! Press CTRL-C to stop the pinging.

交换机互ping。

注意：ping是不成功的！当看到ping失败的时候惊出冷汗，才发现是黑色幽默，ctrl+c终止ping。

4.Start up another terminal window and start up Frenetic:

$ frenetic http-controller --verbosity debug

在新的终端中打开一个controller。

我的操作是，先打开controller再创建Mininet拓扑。

未创建Mininet网络拓扑时：

创建网络拓扑，结束实验时：

5.In a third terminal window, start up the example program for the Python repeater:

$ python -m frenetic.examples.repeater

注意，请先创建Mininet拓扑。

在第三个终端，运行程序，执行Python repeater。

6.Now, back in the window running Mininet, the ping should now succeed:

mininet> h1 ping h2

Congratulations! You now have a working Software Defined Network.

再次互ping，恭喜您，在Frenetic的虚拟机中打开了SDN的大门。

2016/11/29