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[Arnau Verdaguer <1988549@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

After live-migrating a trunk VM the network trunk status remains in a
DOWN state even if the subports and parent port status is ACTIVE and
there is connectivity between subports and to the trunk port.

stepts to reproduce:
1. Create trunk with some subport,
2. Spawn vm with plugged to the trunk's parent port,
3. Check status of trunk's parent port, subport's port and trunk itself- all ACTIVE
4. Live-migrate vm
5. Check status of trunk's parent port and subport's port and trunk itself - subport and parent port status is UP but trunk itself has DOWN status.

Info:
(overcloud) [stack@undercloud-0 ~]$ openstack server event list ovn-migration-server-trunk-ext-pinger-1
+------------------------------------------+--------------------------------------+--------+----------------------------+
| Request ID                               | Server ID                            | Action | Start Time                 |
+------------------------------------------+--------------------------------------+--------+----------------------------+
| req-93485625-4e4f-40f0-89a6-104853eceee5 | 8ded64a4-6675-462c-8276-663a46f8efa9 | create | 2022-09-01T20:51:14.000000 |
+------------------------------------------+--------------------------------------+--------+----------------------------+
(overcloud) [stack@undercloud-0 ~]$ openstack port list | grep -ext-pinger-1
| de281f6b-afab-424f-a05e-058cabc42b53 | ovn-migration-port-trunk-ext-pinger-1-subport | fa:16:3e:bc:b6:96 | ip_address='192.168.200.178', subnet_id='e54a235d-1337-4f78-ba64-1c3d1f21c97e'                     | ACTIVE |
| fca6bb27-a0a1-47fb-bb37-b6aa53121248 | ovn-migration-port-trunk-ext-pinger-1         | fa:16:3e:bc:b6:96 | ip_address='10.0.0.218', subnet_id='f0ef20d3-5769-478c-bbfd-7384d5ffb284'                          | ACTIVE |
(overcloud) [stack@undercloud-0 ~]$ openstack network trunk show ovn-migration-trunk-pinger-1 -f value -c status
ACTIVE
(overcloud) [stack@undercloud-0 ~]$ openstack server migrate --live-migration --host compute-0.redhat.local --block-migration --wait ovn-migration-server-trunk-ext-pinger-1
Complete
(overcloud) [stack@undercloud-0 ~]$ openstack port list | grep -ext-pinger-1
| de281f6b-afab-424f-a05e-058cabc42b53 | ovn-migration-port-trunk-ext-pinger-1-subport | fa:16:3e:bc:b6:96 | ip_address='192.168.200.178', subnet_id='e54a235d-1337-4f78-ba64-1c3d1f21c97e'                     | ACTIVE |
| fca6bb27-a0a1-47fb-bb37-b6aa53121248 | ovn-migration-port-trunk-ext-pinger-1         | fa:16:3e:bc:b6:96 | ip_address='10.0.0.218', subnet_id='f0ef20d3-5769-478c-bbfd-7384d5ffb284'                          | ACTIVE |
(overcloud) [stack@undercloud-0 ~]$ openstack network trunk show ovn-migration-trunk-pinger-1 -f value -c status
DOWN

** Affects: neutron
     Importance: Undecided
     Assignee: Arnau Verdaguer (averdagu)
         Status: In Progress

** Changed in: neutron
     Assignee: (unassigned) => Arnau Verdaguer (averdagu)

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https://bugs.launchpad.net/bugs/1988549

Title:
  Trunk status is down after a live-migration

Status in neutron:
  In Progress

Bug description:
  After live-migrating a trunk VM the network trunk status remains in a
  DOWN state even if the subports and parent port status is ACTIVE and
  there is connectivity between subports and to the trunk port.

  stepts to reproduce:
  1. Create trunk with some subport,
  2. Spawn vm with plugged to the trunk's parent port,
  3. Check status of trunk's parent port, subport's port and trunk itself- all ACTIVE
  4. Live-migrate vm
  5. Check status of trunk's parent port and subport's port and trunk itself - subport and parent port status is UP but trunk itself has DOWN status.

  Info:
  (overcloud) [stack@undercloud-0 ~]$ openstack server event list ovn-migration-server-trunk-ext-pinger-1
  +------------------------------------------+--------------------------------------+--------+----------------------------+
  | Request ID                               | Server ID                            | Action | Start Time                 |
  +------------------------------------------+--------------------------------------+--------+----------------------------+
  | req-93485625-4e4f-40f0-89a6-104853eceee5 | 8ded64a4-6675-462c-8276-663a46f8efa9 | create | 2022-09-01T20:51:14.000000 |
  +------------------------------------------+--------------------------------------+--------+----------------------------+
  (overcloud) [stack@undercloud-0 ~]$ openstack port list | grep -ext-pinger-1
  | de281f6b-afab-424f-a05e-058cabc42b53 | ovn-migration-port-trunk-ext-pinger-1-subport | fa:16:3e:bc:b6:96 | ip_address='192.168.200.178', subnet_id='e54a235d-1337-4f78-ba64-1c3d1f21c97e'                     | ACTIVE |
  | fca6bb27-a0a1-47fb-bb37-b6aa53121248 | ovn-migration-port-trunk-ext-pinger-1         | fa:16:3e:bc:b6:96 | ip_address='10.0.0.218', subnet_id='f0ef20d3-5769-478c-bbfd-7384d5ffb284'                          | ACTIVE |
  (overcloud) [stack@undercloud-0 ~]$ openstack network trunk show ovn-migration-trunk-pinger-1 -f value -c status
  ACTIVE
  (overcloud) [stack@undercloud-0 ~]$ openstack server migrate --live-migration --host compute-0.redhat.local --block-migration --wait ovn-migration-server-trunk-ext-pinger-1
  Complete
  (overcloud) [stack@undercloud-0 ~]$ openstack port list | grep -ext-pinger-1
  | de281f6b-afab-424f-a05e-058cabc42b53 | ovn-migration-port-trunk-ext-pinger-1-subport | fa:16:3e:bc:b6:96 | ip_address='192.168.200.178', subnet_id='e54a235d-1337-4f78-ba64-1c3d1f21c97e'                     | ACTIVE |
  | fca6bb27-a0a1-47fb-bb37-b6aa53121248 | ovn-migration-port-trunk-ext-pinger-1         | fa:16:3e:bc:b6:96 | ip_address='10.0.0.218', subnet_id='f0ef20d3-5769-478c-bbfd-7384d5ffb284'                          | ACTIVE |
  (overcloud) [stack@undercloud-0 ~]$ openstack network trunk show ovn-migration-trunk-pinger-1 -f value -c status
  DOWN

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