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[Diko Parvanov <1892405@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

Stumbled upon an issue where removing a DVR HA router interface renders
all other subnets connected to that router to stop routing. VMs can't
reach the HA port (IP) of the router (ping).

Worked around this by:
openstack router set --disabled <ROUTER>
openstack router set --enable <ROUTER>

This has happened more than once in the current deployment
 - cloud:bionic-stein
 - neutron 2:14.0.4-0ubuntu1~cloud1

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1892405

Title:
  Removing router interface causes router to stop routing between all

Status in neutron:
  New

Bug description:
  Stumbled upon an issue where removing a DVR HA router interface
  renders all other subnets connected to that router to stop routing.
  VMs can't reach the HA port (IP) of the router (ping).

  Worked around this by:
  openstack router set --disabled <ROUTER>
  openstack router set --enable <ROUTER>

  This has happened more than once in the current deployment
   - cloud:bionic-stein
   - neutron 2:14.0.4-0ubuntu1~cloud1

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