[Bug 2007166] Related fix proposed to neutron (stable/2023.1)

[OpenStack Infra]

Related fix proposed to branch: stable/2023.1
Review: https://review.opendev.org/c/openstack/neutron/+/904167

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https://bugs.launchpad.net/bugs/2007166

Title:
  [tempest] CI job "neutron-ovn-tempest-ipv6-only-ovs-release" unstable,
  most of the times because of "test_hotplug_nic"

Status in neutron:
  Confirmed
Status in ovn package in Ubuntu:
  New

Bug description:
  The CI job "neutron-ovn-tempest-ipv6-only-ovs-release" is very
  unstable:
  https://zuul.opendev.org/t/openstack/builds?job_name=neutron-ovn-
  tempest-ipv6-only-ovs-release&result=FAILURE&skip=0

  The test "tempest.scenario.test_network_basic_ops.TestNetworkBasicOps.test_hotplug_nic" is failing most of the times:
  * https://74b83773945845894408-fddd31f569f44d98bd401bfd88253d97.ssl.cf2.rackcdn.com/873553/1/check/neutron-ovn-tempest-ipv6-only-ovs-release/6800220/testr_results.html
  * https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_d60/873107/1/check/neutron-ovn-tempest-ipv6-only-ovs-release/d602240/testr_results.html
  * https://storage.bhs.cloud.ovh.net/v1/AUTH_dcaab5e32b234d56b626f72581e3644c/zuul_opendev_logs_b42/871252/7/check/neutron-ovn-tempest-ipv6-only-ovs-release/b4222bf/testr_results.html
  * https://19f26a45cf72bfba2cac-660b01bbd2fa84d0c67c5f821a133691.ssl.cf2.rackcdn.com/873247/3/check/neutron-ovn-tempest-ipv6-only-ovs-release/38158d9/testr_results.html

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