Neutron is able to utilize a set of backends called plugins that support a growing set of networking technologies. These plugins may be distributed separately or as part of the main Neutron release. OpenStack Networking (Neutron) is a virtual network service that provides an efficient API to define the network connectivity and addressing, which is used by devices from other OpenStack services (such as OpenStack Compute). The OpenStack Networking API utilizes virtual network, subnet, and port abstractions to describe networking resources. In the OpenStack networking ecosystem:
- A network is an isolated L2 segment similar to VLAN in physical networking.
- A block of IPv4 or IPv6 addresses and associated configuration states is a subnet.
- A connection point for attaching a single device, such as the NIC of a virtual server, to a virtual network is defined as a port. Also, a port describes the network configuration parameters (such as the MAC and IP addresses) associated...