Configuring Neutron VXLAN and GRE tenant networks using Open vSwitch
Neutron supports creating layer 2 network overlays for tenant network traffic on top of Layer-3 networks using network tunneling technologies. In this recipe, we will configure Neutron to create GRE and VXLAN network overlays using Open vSwitch (OVS).
We will configure a topology of Neutron Networking Node that runs the Neutron Server main service, Open vSwitch agent, other Neutron service agents, such as L3 and DHCP. All OpenStack compute nodes run the open vSwitch agent to manage local L2 networks.
Getting ready
In this recipe, we will configure Neutron to use the ML2 plugin with an Open vSwitch mechanism driver, and tenant network type of VXLAN and GRE. Since the ML2 plugin supports configuring multiple type drivers, we will configure Neutron to support both GRE and VXLAN simultaneously. In this recipe, we assume that all OpenStack services, such as Keystone and nova, and components, such as message broker and database...