switch to vxlan by default

VXLAN has better performance (20-25% better)
NICs with VXLAN offload are more common

Change-Id: If57c79a1309ae178b3e82d54bb101dde584c86cc
Related: rhbz#1244864

compute.yaml

@@ -129,7 +129,7 @@ parameters:
   NeutronNetworkType:
     type: string
     description: The tenant network type for Neutron, either gre or vxlan.
-    default: 'gre'
+    default: 'vxlan'
   NeutronNetworkVLANRanges:
     default: 'datacentre'
     description: >
@@ -155,7 +155,7 @@ parameters:
     description: |
         The tunnel types for the Neutron tenant network. To specify multiple
         values, use a comma separated string, like so: 'gre,vxlan'
-    default: 'gre'
+    default: 'vxlan'
   NeutronTunnelIdRanges:
     description: |
         Comma-separated list of <tun_min>:<tun_max> tuples enumerating ranges

controller.yaml

@@ -333,7 +333,7 @@ parameters:
     default: 'datacentre'
     description: If set, flat networks to configure in neutron plugins.
   NeutronNetworkType:
-    default: 'gre'
+    default: 'vxlan'
     description: The tenant network type for Neutron, either gre or vxlan.
     type: string
   NeutronNetworkVLANRanges:
@@ -375,7 +375,7 @@ parameters:
     description: If set, the public interface is a vlan with this device as the raw device.
     type: string
   NeutronTunnelTypes:
-    default: 'gre'
+    default: 'vxlan'
     description: |
         The tunnel types for the Neutron tenant network. To specify multiple
         values, use a comma separated string, like so: 'gre,vxlan'

deprecated/nova-compute-instance.yaml

@@ -100,7 +100,7 @@ parameters:
   NeutronHost:
     type: string
   NeutronNetworkType:
-    default: 'gre'
+    default: 'vxlan'
     description: The tenant network type for Neutron, either gre or vxlan.
     type: string
   NeutronNetworkVLANRanges:
@@ -114,7 +114,7 @@ parameters:
     description: A port to add to the NeutronPhysicalBridge.
     type: string
   NeutronTunnelTypes:
-    default: 'gre'
+    default: 'vxlan'
     description: |
         The tunnel types for the Neutron tenant network. To specify multiple
         values, use a comma separated string, like so: 'gre,vxlan'

deprecated/overcloud-source.yaml

@@ -221,7 +221,7 @@ parameters:
       If set, flat networks to configure in neutron plugins. Defaults to
       'datacentre' to permit external network creation.
   NeutronNetworkType:
-    default: 'gre'
+    default: 'vxlan'
     description: The tenant network type for Neutron, either gre or vxlan.
     type: string
   NeutronNetworkVLANRanges:
@@ -279,7 +279,7 @@ parameters:
     description: Shared secret to prevent spoofing
     type: string
   NeutronTunnelTypes:
-    default: 'gre'
+    default: 'vxlan'
     description: |
         The tunnel types for the Neutron tenant network. To specify multiple
         values, use a comma separated string, like so: 'gre,vxlan'

overcloud-without-mergepy.yaml

@@ -108,7 +108,7 @@ parameters:
       If set, flat networks to configure in neutron plugins. Defaults to
       'datacentre' to permit external network creation.
   NeutronNetworkType:
-    default: 'gre'
+    default: 'vxlan'
     description: The tenant network type for Neutron, either gre or vxlan.
     type: string
   NeutronPassword:
@@ -147,7 +147,7 @@ parameters:
     description: Shared secret to prevent spoofing
     type: string
   NeutronTunnelTypes:
-    default: 'gre'
+    default: 'vxlan'
     description: |
         The tunnel types for the Neutron tenant network. To specify multiple
         values, use a comma separated string, like so: 'gre,vxlan'

puppet/compute-puppet.yaml

@@ -97,7 +97,7 @@ parameters:
   NeutronNetworkType:
     type: string
     description: The tenant network type for Neutron, either gre or vxlan.
-    default: 'gre'
+    default: 'vxlan'
   NeutronNetworkVLANRanges:
     default: 'datacentre'
     description: >
@@ -123,7 +123,7 @@ parameters:
     description: |
         The tunnel types for the Neutron tenant network. To specify multiple
         values, use a comma separated string, like so: 'gre,vxlan'
-    default: 'gre'
+    default: 'vxlan'
   NeutronTunnelIdRanges:
     description: |
         Comma-separated list of <tun_min>:<tun_max> tuples enumerating ranges

puppet/controller-puppet.yaml

@@ -309,7 +309,7 @@ parameters:
     description: Whether to enable l3-agent HA
     type: string
   NeutronNetworkType:
-    default: 'gre'
+    default: 'vxlan'
     description: The tenant network type for Neutron, either gre or vxlan.
     type: string
   NeutronNetworkVLANRanges:
@@ -351,7 +351,7 @@ parameters:
     description: If set, the public interface is a vlan with this device as the raw device.
     type: string
   NeutronTunnelTypes:
-    default: 'gre'
+    default: 'vxlan'
     description: |
         The tunnel types for the Neutron tenant network. To specify multiple
         values, use a comma separated string, like so: 'gre,vxlan'