diff --git a/.zuul.yaml b/.zuul.yaml
index e133bfacd7..00129b5ca4 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -468,10 +468,6 @@
         SWIFT_HASH: 1234123412341234
         DEBUG_LIBVIRT_COREDUMPS: true
         NOVA_VNC_ENABLED: true
-        OVN_L3_CREATE_PUBLIC_NETWORK: true
-        OVN_DBS_LOG_LEVEL: dbg
-        ENABLE_CHASSIS_AS_GW: true
-        Q_USE_PROVIDERNET_FOR_PUBLIC: true
       devstack_local_conf:
         post-config:
           $NEUTRON_CONF:
@@ -481,11 +477,7 @@
         # Core services enabled for this branch.
         # This list replaces the test-matrix.
         # Shared services
-        #
-        # NOTE(lucasagomes): disable dstat until bug
-        # https://bugs.launchpad.net/ubuntu/+source/dstat/+bug/1866619 is
-        # fixed. Also see: https://bugs.launchpad.net/neutron/+bug/1898863
-        dstat: false
+        dstat: true
         etcd3: true
         memory_tracker: true
         mysql: true
@@ -504,14 +496,13 @@
         n-sch: true
         # Placement service
         placement-api: true
-        # OVN services
-        ovn-controller: true
-        ovn-northd: true
-        ovs-vswitchd: true
-        ovsdb-server: true
         # Neutron services
+        q-agt: true
+        q-dhcp: true
+        q-l3: true
+        q-meta: true
+        q-metering: true
         q-svc: true
-        q-ovn-metadata-agent: true
         # Swift services
         s-account: true
         s-container: true
@@ -536,24 +527,15 @@
           # Core services enabled for this branch.
           # This list replaces the test-matrix.
           # Shared services
-          #
-          # NOTE(lucasagomes): disable dstat until bug
-          # https://bugs.launchpad.net/ubuntu/+source/dstat/+bug/1866619 is
-          # fixed. Also see: https://bugs.launchpad.net/neutron/+bug/1898863
-          dstat: false
+          dstat: true
           memory_tracker: true
           tls-proxy: true
           # Nova services
           n-cpu: true
           # Placement services
           placement-client: true
-          # OVN services
-          ovn-controller: true
-          ovn-northd: false
-          ovs-vswitchd: true
-          ovsdb-server: true
           # Neutron services
-          q-ovn-metadata-agent: true
+          q-agt: true
           # Cinder services
           c-bak: true
           c-vol: true
@@ -567,7 +549,6 @@
           # integrated gate, so specifying the services has not effect.
           # ceilometer-*: false
         devstack_localrc:
-          ENABLE_CHASSIS_AS_GW: false
           # Subnode specific settings
           GLANCE_HOSTPORT: "{{ hostvars['controller']['nodepool']['private_ipv4'] }}:9292"
           Q_HOST: "{{ hostvars['controller']['nodepool']['private_ipv4'] }}"
diff --git a/lib/neutron_plugins/ml2 b/lib/neutron_plugins/ml2
index a58ba5cbcd..ae4b251d83 100644
--- a/lib/neutron_plugins/ml2
+++ b/lib/neutron_plugins/ml2
@@ -8,14 +8,14 @@ _XTRACE_NEUTRON_ML2=$(set +o | grep xtrace)
 set +o xtrace
 
 # Default openvswitch L2 agent
-Q_AGENT=${Q_AGENT:-ovn}
+Q_AGENT=${Q_AGENT:-openvswitch}
 if [ -f $TOP_DIR/lib/neutron_plugins/${Q_AGENT}_agent ]; then
     source $TOP_DIR/lib/neutron_plugins/${Q_AGENT}_agent
 fi
 
 # Enable this to simply and quickly enable tunneling with ML2.
 # Select either 'gre', 'vxlan', or 'gre,vxlan'
-Q_ML2_TENANT_NETWORK_TYPE=${Q_ML2_TENANT_NETWORK_TYPE:-"geneve"}
+Q_ML2_TENANT_NETWORK_TYPE=${Q_ML2_TENANT_NETWORK_TYPE:-"vxlan"}
 # This has to be set here since the agent will set this in the config file
 if [[ "$Q_ML2_TENANT_NETWORK_TYPE" == "gre" || "$Q_ML2_TENANT_NETWORK_TYPE" == "vxlan" ]]; then
     Q_TUNNEL_TYPES=$Q_ML2_TENANT_NETWORK_TYPE
@@ -24,7 +24,7 @@ elif [[ "$ENABLE_TENANT_TUNNELS" == "True" ]]; then
 fi
 
 # List of MechanismDrivers to load
-Q_ML2_PLUGIN_MECHANISM_DRIVERS=${Q_ML2_PLUGIN_MECHANISM_DRIVERS:-ovn}
+Q_ML2_PLUGIN_MECHANISM_DRIVERS=${Q_ML2_PLUGIN_MECHANISM_DRIVERS:-openvswitch,linuxbridge}
 # Default GRE TypeDriver options
 Q_ML2_PLUGIN_GRE_TYPE_OPTIONS=${Q_ML2_PLUGIN_GRE_TYPE_OPTIONS:-tunnel_id_ranges=$TENANT_TUNNEL_RANGES}
 # Default VXLAN TypeDriver options