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[Launchpad Bug Tracker <1518392@xxxxxxxxxxxxxxxxxx>]

[Expired for neutron because there has been no activity for 60 days.]

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

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https://bugs.launchpad.net/bugs/1518392

Title:
  [RFE] setup arp_responder on integration bridge (without enabling
  l2_pop)

Status in neutron:
  Expired

Bug description:
  Remove the dependency between arp_responder and l2_pop.

  arp_responder should be enabled without enabling l2_pop.

  setup arp_responder on integration bridge

  Implement arp_responder on integration bridge rather than
  on tunneling bridge and without l2pop. Use port_update and port_delete notifications to update arp entries for ports, instead of l2_pop.

  The advantages of this approach are -
  1) arp_responder can be enabled without l2pop driver
  2) support arp_responder for all network types(vlans, vxlan, etc)
     arp_responder based on l2pop is supported for only overlay networks.
  3) support arp for distributed ports(DVR and HA).
     This is not supported in    l2pop based arp_responder.
  4) arp packets for local ports(ports connected to same br-int) will be resolved in br-int without broadcasting to actual ports connected to br-int.

  Already submitted https://review.openstack.org/#/c/248177/ for this.

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