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[Oleg Bondarev <obondarev@xxxxxxxxxxxx>]

Works for me on Mitaka and on master, followed steps from John's comment
#6. Just added host-route on a subnet connected to 2 DVR routers instead
of manual adding a static route on VM. Marking as invalid.

** Changed in: neutron
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/1447227

Title:
  Connecting two or more distributed routers to a subnet doesn't work
  properly

Status in neutron:
  Invalid

Bug description:
  DVR code currently assumes that only one router may be attached to a
  subnet but this is not the case. OVS flows for example will not work
  correctly for E/W traffic as incoming traffic is always assumed to be
  coming from one of the two routers.

  The simple solution is to block the attachment of a distributed router
  to a subnet already attached to another distributed router.

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