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[Thomas Morin <1629861@xxxxxxxxxxxxxxxxxx>]

Changed the title to reflect the case that the bug is in code used also
apparently used by non-DVR setups.

** Summary changed:

- L3 DVR: missing registry callback notification at Router Interface creation
+ L3: missing registry callback notification at Router Interface creation

** Also affects: bgpvpn
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1629861

Title:
  L3: missing registry callback notification at Router Interface
  creation

Status in networking-bgpvpn:
  New
Status in neutron:
  In Progress

Bug description:
  The code triggering a ROUTER_INTERFACE AFTER_CREATE registry
  notification is not ran if the Router to which an interface is added
  has no gateway connected.

  [1]
  https://github.com/openstack/neutron/blob/930655cf57de523181b2d59bb4428b9f23991cce/neutron/db/l3_dvr_db.py#L427
  )

  This behavior is problematic for components that need to rely on this
  functionality, and not consistent with what the non-DVR code does [2].

  [2]
  https://github.com/openstack/neutron/blob/f4ba9ea8ac18fabac80cb0443bc18d9f950482b3/neutron/db/l3_db.py#L815

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