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[Christoph Manns <christoph.manns@xxxxxxxxx>]

Public bug reported:

If you have a subnet with 2 routers and you create and then delete
a VM it may happen that an old ARP entry may persist. If you create
another VM with the same IP and the ARP update goes to the other
router you have a VM which isn't reachable via one router since the
ARP entry is wrong.

A solution would be to update all router ports and not just one.

** Affects: neutron
     Importance: Undecided
     Assignee: Christoph Manns (christoph-manns)
         Status: In Progress

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https://bugs.launchpad.net/bugs/1794535

Title:
  Consider all router ports for dvr arp updates

Status in neutron:
  In Progress

Bug description:
  If you have a subnet with 2 routers and you create and then delete
  a VM it may happen that an old ARP entry may persist. If you create
  another VM with the same IP and the ARP update goes to the other
  router you have a VM which isn't reachable via one router since the
  ARP entry is wrong.

  A solution would be to update all router ports and not just one.

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