Scenario - Networking Generic Switch¶
Overview¶
Operators can choose to utilize the Networking Generic Switch (NGS) mechanism driver to manage physical switches when Ironic is integrated with Neutron. The Networking Generic Switch mechanism driver can be deployed alongside other drivers, such as Open vSwitch or LinuxBridge. This document outlines how to set it up in your environment.
Recommended reading¶
It is recommended to familiarize yourself with project-specific documentation to better understand deployment and configuration options:
Prerequisites¶
Network connectivity from the node(s) running the neutron-server service to the management interface of the physical switch(es) connected to Ironic bare-metal nodes. This is outside the scope of OpenStack-Ansible.
OpenStack-Ansible user variables¶
Add ml2.genericswitch to the neutron_plugin_types list in
/etc/openstack_deploy/user_variables.yml:
neutron_plugin_types:
- ml2.genericswitch
To interface with a supported network switch, configure ini overrides for each connected switch in your environment:
neutron_ml2_conf_genericswitch_ini_overrides:
genericswitch:arista01:
device_type: netmiko_arista_eos
ngs_mac_address: "00:1c:73:29:ea:ca"
ip: "192.168.90.2"
username: "openstack"
password: "0p3nst@ck"
ngs_port_default_vlan: 3
genericswitch:arista02:
device_type: netmiko_arista_eos
ngs_mac_address: "00:1c:73:29:ea:cb"
ip: "192.168.90.3"
username: "openstack"
password: "0p3nst@ck"
ngs_port_default_vlan: 3
Lastly, configure an override to Ironic to enable the neutron interface:
ironic_enabled_network_interfaces_list: neutron
ironic_default_network_interface: neutron
Notes¶
Ironic bare-metal ports that are associated with bare-metal nodes can be
configured with the respective connection details using the
openstack baremetal port set command:
openstack baremetal port set 3a948c3b-6c41-4f68-8389-c4f5ca667c63 \
--local-link-connection switch_info=arista01 \
--local-link-connection switch_id="00:1c:73:29:ea:ca" \
--local-link-connection port_id="et11"
When a server is deployed using a bare-metal node, Neutron will connect to the respective switch(es) and configure the switchport interface(s) according.
