Enable the Mechanism Driver and Plugins

Make configurations on the Neutron controller for starting the Extreme EFA Mechanism Driver and L3 Service plugin, a journal-based plugin.

1. ML2 Configuration: Set the mechanism driver to extreme_efa_v2, along with openvswitch. In the /etc/neutron/plugins/ml2/ml2_conf.ini file, add the following lines:
   

   [ml2]  
   mechanism_drivers = openvswitch,extreme_efa_v2,sriovnicswitch

   The configurations in the following table also affect the working of the journaling mechanism, which is configured in /etc/neutron/plugins/ml2/ml2_conf.ini.

   Parameter	Description	Default
   sync_timeout	Sync thread timeout in seconds or fraction.	10
   retry_count	Number of times to retry a row before failing.	5
   maintenance_interval	Journal maintenance operations interval in seconds.	300
   completed_rows_retention	Time to keep completed rows (in seconds). For performance reasons, do not change this from the default value (0) which indicates completed rows are not kept. This value is checked every maintenance_interval by the cleanup thread. To keep completed rows indefinitely, set the value to -1.	0
   journal_rows_threshold	Maximum number of journal rows allowed. If the number of rows exceeds this threshold, then the efa_health tool shows the status as down.	1000
   efa_status_interval	Journal EFA reachability check interval in seconds	150

2. Topology Plugin Configuration: Activate the topology plugin by adding the following lines in the /etc/neutron/neutron.conf file:
   

   [DEFAULT] 
   service_plugins = efa_topology_plugin,trunk,segments

3. L3 Service Plugin Configuration: Activate the L3 Service plugin by adding the following lines in the /etc/neutron/neutron.conf file:
   

   [DEFAULT] 
   service_plugins = extreme_l3_efa_v2,efa_topology_plugin,trunk,segments

   

   Note

   extreme_l3_efa_v2 is an L3 Service plugin and is a replacement for the default L3 Service plugin (called router). Only one of them should be used.
4. L3 Flavor Configuration: Enable L3 flavors with Extreme by adding the relevant service providers to neutron.conf:
   

   [service_providers] 
   service_provider = L3_ROUTER_NAT:extremev2:networking_extreme.l3.l3_flavor_v2
   .ExtremeL3ServiceProviderv2:default

   Flavors require the default L3 Service plugin (called router). In other words, flavors can be used only when the service plugin is router.

   

   service_plugins = router,efa_topology_plugin,trunk,segments

   For more information, see L3 Flavors.