Freescale SDN ML2 Mechanism Driver
Contents
Introduction
Freescale SDN (FSL-SDN) Mechanism Driver is an add-on support for ML2 plugin for Neutron.
It supports the Cloud Resource Discovery (CRD) service by updating Network, Subnet and Port Create/Update/Delete data into the CRD database.
CRD service manages network nodes, virtual network appliances and openflow controller based network applications.
Basic work flow
+---------------------------------+ | | | Neutron Server | | (with ML2 plugin) | | | | +-------------------------------+ | | Freescale SDN | | | Mechanism Driver | +-+--------+----------------------+ | | ReST API | +----------+-------------+ | CRD server | +------------------------+
How does Freescale SDN Mechanism Driver work?
- Freescale Mechanism driver handles the following postcommit operations.
- Network create/update/delete - Subnet create/update/delete - Port create/delete
Sequence diagram : create_network
create_network { neutron -> ML2_plugin ML2_plugin -> FSL-SDN-MD FSL-SDN-MD -> crd_service FSL-SDN-MD <-- crd_service ML2_plugin <-- FSL-SDN-MD neutron <-- ML2_plugin }
- Supported network types by FSL OF Controller include vlan and vxlan.
- Freescale SDN mechanism driver handles VM port binding within in the mechanism driver (like ODL MD).
- 'bind_port' function verifies the supported network types (vlan,vxlan) and calls context.set_binding with binding details.
- Flow management in OVS is handled by Freescale Openflow Controller.
How to use Freescale SDN Mechanism Driver?
Configuring ML2 Plugin
In [ml2] section of /etc/neutron/plugins/ml2/ml2_conf.ini, modify 'mechanism_drivers' attributes as:
mechanism_drivers = fslsdn
Configuring FSLSDN Mechanism Driver
Update /etc/neutron/plugins/ml2/ml2_conf_fslsdn.ini, as below.
[ml2_fslsdn] crd_auth_strategy = keystone crd_url = http://127.0.0.1:9797 crd_auth_url = http://127.0.0.1:5000/v2.0/ crd_tenant_name = service crd_password = <-service-password-> crd_user_name = <-service-username->
CRD service must be running in the controller.