Chapter 3. Neutron API Basics

Neutron is a virtual networking service that allows users to define network connectivity and IP addressing for instances and other cloud resources using an application programmable interface (API). The Neutron API is made up of core elements that define basic network architectures and extensions that extend base functionality. Neutron accomplishes this by virtue of its data model, which consists of networks, subnets, and ports. These objects help define the characteristics of the network in an easily storable format. These core elements are used to build a logical network data model using information that corresponds to layer 1 through 3 of the OSI model, shown here:

Note

For more information on the OSI model, check out the Wikipedia article at https://en.wikipedia.org/wiki/OSI_model.

Neutron uses plugins and drivers to identify network features and construct the virtual network infrastructure based on information stored in the database. A core plugin...