=====================================================
Freescale SDN Mechanism Driver for Neutron ML2 plugin
=====================================================
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.
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