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[Kevin Benton <1590845@xxxxxxxxxxxxxxxxxx>]

Sorry, I just noticed the issues around stable/mitaka. The provisioning
blocks were clearly not the only cause of this behavior because they
didn't exist in Mitaka.

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

** Changed in: neutron
     Assignee: Kevin Benton (kevinbenton) => (unassigned)

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https://bugs.launchpad.net/bugs/1590845

Title:
  Router interfaces report being in BUILD state - l3ha vrrp+LinuxBridge

Status in neutron:
  Confirmed

Bug description:
  I'm running a Liberty environment with two network hosts using the L3HA VRRP driver.
  I also have L2pop on and am using the ML2 LinuxBridge driver.

  When we programmatically attach subnets and/or ports to routers(we attach 1 interface every 60 seconds), some report back stuck in the BUILD state. Take this interface, for example:
  neutron port-show 98b55b89-a002-496f-a5d4-8de598613da8
  +-----------------------+--------------------------------------------------------------------------------------------------------------+
  | Field                 | Value                                                                                                        |
  +-----------------------+--------------------------------------------------------------------------------------------------------------+
  | admin_state_up        | True                                                                                                         |
  | allowed_address_pairs |                                                                                                              |
  | binding:host_id       | dn3usoskctl03_neutron_agents_container-e64e37d6                                                              |
  | binding:profile       | {}                                                                                                           |
  | binding:vif_details   | {"port_filter": true}                                                                                        |
  | binding:vif_type      | bridge                                                                                                       |
  | binding:vnic_type     | normal                                                                                                       |
  | device_id             | 5838c5de-e87a-4e5e-b61f-a3f068fa7726                                                                         |
  | device_owner          | network:router_interface                                                                                     |
  | dns_assignment        | {"hostname": "host-10-169-160-1", "ip_address": "10.169.160.1", "fqdn": "host-10-169-160-1.openstacklocal."} |
  | dns_name              |                                                                                                              |
  | extra_dhcp_opts       |                                                                                                              |
  | fixed_ips             | {"subnet_id": "bc3a8d37-6cd7-4d57-b0c9-2b35743b0a0b", "ip_address": "10.169.160.1"}                          |
  | id                    | 98b55b89-a002-496f-a5d4-8de598613da8                                                                         |
  | mac_address           | fa:16:3e:b9:7a:1d                                                                                            |
  | name                  |                                                                                                              |
  | network_id            | 535c3336-202c-4dab-b517-2232c4ce1481                                                                         |
  | security_groups       |                                                                                                              |
  | status                | BUILD                                                                                                        |
  | tenant_id             | 3ccf712795c44edcbc8ffcc331a59853                                                                             |
  +-----------------------+--------------------------------------------------------------------------------------------------------------+

  It's reporting itself in the BUILD state, but when I check the router
  namespace, it's linux networking component counter part seems to be
  functioning just fine:

  8: qr-98b55b89-a0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
      link/ether fa:16:3e:b9:7a:1d brd ff:ff:ff:ff:ff:ff
      inet 10.169.160.1/23 scope global qr-98b55b89-a0
         valid_lft forever preferred_lft forever
      inet6 fe80::f816:3eff:feb9:7a1d/64 scope link 
         valid_lft forever preferred_lft forever

  I can even ping the address with no problem once i open up the
  security group rules.

  Note: The problem doesn't appear when L3HA is turned off. Only when
  L3HA with VRRP keepalived driver is being used.

  Where would be a good place to start debugging this?

  Thanks!

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