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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: neutron
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1328991

Title:
  External network should not have provider:network_type as vxlan

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  Given this is the ml2_conf.ini file on a controller node that also runs neutron API server, DHCP and L3 agents.
  [ml2]
  type_drivers = local,flat,vlan,gre,vxlan
  mechanism_drivers = openvswitch,l2population
  tenant_network_types = vxlan

  [ml2_type_flat]

  [ml2_type_vlan]

  [ml2_type_gre]
  tunnel_id_ranges = 1:1000

  [ml2_type_vxlan]
  vni_ranges = 1001:65535

  [database]
  connection = mysql://...

  [ovs]
  local_ip = 192.0.2.24
  enable_tunneling = True

  [agent]
  tunnel_types = vxlan
  l2_population = True
  polling_interval = 2
  minimize_polling = True

  [securitygroup]
  firewall_driver = neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver

  When the tripleo-incubator's setup-neutron.sh script creates the
  external network on this node (devstack runs the same command):

      neutron net-create ext-net --router:external=True

  
  neutron net-show ext-net displays:

  # neutron net-show ext-net
  +---------------------------+--------------------------------------+
  | Field                     | Value                                |
  +---------------------------+--------------------------------------+
  | admin_state_up            | True                                 |
  | id                        | 94384f38-0cb0-4336-a7c3-293858dec2ba |
  | name                      | ext-net                              |
  | provider:network_type     | vxlan                                |
  | provider:physical_network |                                      |
  | provider:segmentation_id  | 1002                                 |
  | router:external           | True                                 |
  | shared                    | False                                |
  | status                    | ACTIVE                               |
  | subnets                   | b0585eeb-ea5a-4741-a759-4497f6e6c21a |
  | tenant_id                 | 8b0a6343ca3e471bbcf0a78e084a98c0     |
  +---------------------------+--------------------------------------+

  
  The provider:network_type of vxlan is not appropriate for an external network because the only ports possible on it are floatingips and router gateways. There are no VM ports. So vxlan tunnels for this network won't be created at all.

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