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[Swaminathan Vasudevan <souminathan@xxxxxxxxx>]

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

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

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https://bugs.launchpad.net/bugs/1757495

Title:
  Using dvr and centralized routers in same network fails

Status in neutron:
  Opinion

Bug description:
  Brief overview and reproducing steps:
  1. Create tenant network, let's say 10.3.2.0/24.
  2. Create centralized HA router. Attach it at 10.3.2.1
  3. Boot VM and ping 10.3.2.1 - works.
  4. Create distributed, no-snat router. Attach it at any free IP, e.g. 10.3.2.5
  5. Try to ping 10.3.2.1 from VM - fails. Ping 10.3.2.5 - works.

  I can reproduce this consistently. The setup might be a bit of a corner case:
   - deployment with openstack kolla. Openvswitch.
   - openstack pike. neutron 11.0.2
   - tenant provider networks are vlan
   - there are 2 neutron nodes to host HA routers
   - all compute nodes configured for DVR

  No errors in logs.
  On the compute node hosting the VM, I can see dropped packages on integration bridge br-int.

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