Neutron

• Neutron admin guide
• Neutron configuration guide
• Neutron configuration reference

Neutron-Dynamic-Routing:

• Neutron-Dynamic-Routing admin guide
• Neutron-Dynamic-Routing configuration guide
• Neutron-Dynamic-Routing configuration reference

Neutron-VPNaaS:

• Neutron-VPNaaS admin guide
• Neutron-VPNaaS configuration guide

MTU Considerations

Neutron uses the MTU of the underlying physical network to calculate the MTU for virtual network components including instance network interfaces. By default, it assumes a standard 1500-byte MTU for the underlying physical network.

Neutron only references the underlying physical network MTU. Changing the underlying physical network device MTU requires configuration of physical network devices such as switches and routers.

The configuration is described in the Neutron admin guide. The configuration files are placed under environments/kolla/files/overlays/neutron/ml2_conf.ini and environments/kolla/files/overlays/neutron.conf.