Network management

OpenStack can be managed in a variety of ways, including through the GUI, API, and CLI. Neutron provides users with the ability to execute commands from a shell that interfaces with the Neutron API. To enter the Neutron shell, type neutron in a shell on the controller node:

Figure 5.1

Alternatively, Neutron commands can be executed straight from the Linux command line using the Neutron client. The client provides a number of commands that assist with the creation, modification, and deletion of networks, subnets, and ports.

The primary commands associated with network management are:

• net-create

• net-delete

• net-list

• net-external-list

• net-update

• subnet-create

• subnet-delete

• subnet-list

• subnet-show

• subnet-update

• port-create

• port-delete

• port-list

• port-show

• port-update

Whether you choose a LinuxBridge- or Open vSwitch-based virtual networking infrastructure, the process to create, modify, and delete networks and subnets is the same. Behind the scenes, however, the process of connecting instances...