Viewing a VNI assigned to a Neutron Network

In this recipe, we will see how to view the VNI assigned to a VXLAN-based virtual network. Knowing the VNI that is assigned to a virtual network is very useful to troubleshoot communication problems between the VMs or other network services.

Getting ready

For this recipe, you will need the following information:

• The SSH login credentials for the node where the Neutron client packages are installed
• A shell RC file that initializes the environment variables for CLI

How to do it…

The following steps will show you how you can view the VNI using the OpenStack CLI:

1. Log in to a node with access to OpenStack.
2. Source your RC file to set up access credentials as an administrator.
3. You can view all the Networks created using the neutron net-list command:
   
4. Use the neutron net-show command to view further details for any network. In case the Network name is not unique, use its ID instead of the name:
   

We can also achieve the same using Horizon. The steps are as follows...