neutron

openStack networking service

TLDR

List networks

$ openstack network list

Create network

$ openstack network create [network_name]

Create subnet

$ openstack subnet create --network [network] --subnet-range [192.168.1.0/24] [subnet_name]

Create router

$ openstack router create [router_name]

List ports

$ openstack port list

Show network details

$ openstack network show [network_name]

SYNOPSIS

openstack network command [options]

DESCRIPTION

Neutron is the OpenStack networking service (now accessed via unified openstack client). It provides network connectivity as a service, managing networks, subnets, routers, and ports.

PARAMETERS

list

List networks.

create

Create network.

delete

Delete network.

show

Show network details.

set

Modify network.

NETWORK TYPES

$ flat       - Untagged network
vlan       - VLAN segmentation
vxlan      - Virtual overlay
gre        - GRE tunnels
geneve     - Geneve encapsulation

COMPONENTS

$ neutron-server      - API server
neutron-l2-agent    - L2 connectivity
neutron-l3-agent    - L3 routing
neutron-dhcp-agent  - DHCP service

CAVEATS

Requires OpenStack credentials. Plugin determines capabilities. Complex multi-tenant networking.

HISTORY

Neutron was originally called Quantum, renamed in 2013. It's part of OpenStack's core services for software-defined networking.