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[Doug Hellmann <doug@xxxxxxxxxxxxxxxx>]

** Changed in: neutron
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1520013

Title:
  OVS unnecessarily drops rule on setup_arp_protection

Status in neutron:
  Fix Released

Bug description:
  in the setup_arp_protection call of OVS, the first step is always to
  remove all of the rules for that port. However, in the majority of the
  cases, the jump rule will be added right back in so this is a waste of
  resources.

  The linux bridge ARP spoofing only clears the rules if ARP spoofing
  protection needs to be removed.

  https://github.com/openstack/neutron/blob/66eced001404064442f27f2fff28d5c4f2e18c18/neutron/plugins/ml2/drivers/linuxbridge/agent/arp_protect.py#L32

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