X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=puppet%2Fservices%2Fneutron-base.yaml;h=32d50d4178dd8a71927145cb91138040bc4a5e36;hb=9df19caa5c14c4c450eabe8577ab36eab6331fe2;hp=39ffea245c3dcc7bff86603d487c7e5ef1abf1d3;hpb=60f528f277bfb07e9107f60684d8f0f537f4c760;p=apex-tripleo-heat-templates.git

diff --git a/puppet/services/neutron-base.yaml b/puppet/services/neutron-base.yaml
index 39ffea24..32d50d41 100644
--- a/puppet/services/neutron-base.yaml
+++ b/puppet/services/neutron-base.yaml
@@ -48,6 +48,18 @@ parameters:
     description: >
         Remove configuration that is not generated by TripleO. Setting
         to false may result in configuration remnants after updates/upgrades.
+  NeutronGlobalPhysnetMtu:
+    type: number
+    default: 1496
+    description: |
+        MTU of the underlying physical network. Neutron uses this value to
+        calculate MTU for all virtual network components. For flat and VLAN
+        networks, neutron uses this value without modification. For overlay
+        networks such as VXLAN, neutron automatically subtracts the overlay
+        protocol overhead from this value. The default value of 1496 is
+        currently in effect to compensate for some additional overhead when
+        deploying with some network configurations (e.g. network isolation over
+        single network interfaces)
   ServiceNetMap:
     default: {}
     description: Mapping of service_name -> network name. Typically set
@@ -87,3 +99,4 @@ outputs:
         neutron::host: '"%{::fqdn}"'    #NOTE: extra quoting is needed
         neutron::db::database_db_max_retries: -1
         neutron::db::database_max_retries: -1
+        neutron::global_physnet_mtu: {get_param: NeutronGlobalPhysnetMtu}