Creating a network

Now that we've explored some of the intricacies of what's happening under the hood, let's actually use Neutron to create a network by performing the following steps:

1. Log in to your control node and source your overcloudrc file; use the non-administrative user for this. The command to create a virtual network is as follows:

   undercloud# openstack network create internal
   undercloud# neutron subnet-create internal 192.168.37.0/24
   

   That is it. You just created a virtual network. I know that for the length of the introduction we just covered, that was pretty anticlimactic. Note that when you create the subnet, you are adding it to the network named internal that you just created. It is important to note the difference in the two commands. The first uses the command structure that has been used thus far. The second one calls a command named after the component being configured, Neutron. OpenStack has been going through a slow transition from having a command-line...