Description of problem: After performing ML2OVS to ML2OVN migration procedure according to the documentation procedure https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.1/html-single/networking_with_open_virtual_network/index#migrating-ml2ovs-to-ovn OVN network agents are down. Existing VMs are not accessible via network. (overcloud) [stack@undercloud-0 ~]$ openstack network agent list +--------------------------------------+------------------------------+---------------------------+-------------------+-------+-------+-------------------------------+ | ID | Agent Type | Host | Availability Zone | Alive | State | Binary | +--------------------------------------+------------------------------+---------------------------+-------------------+-------+-------+-------------------------------+ | 1a9041f0-6d0f-4cc8-bc6a-a29e9e5e3048 | DHCP agent | controller-1.redhat.local | nova | XXX | UP | neutron-dhcp-agent | | 270038fc-d919-4f45-90dc-8cffef0a6aeb | Open vSwitch agent | compute-1.redhat.local | None | XXX | UP | neutron-openvswitch-agent | | 3b8edbd2-4ab0-48a8-9101-488c99d77164 | Metadata agent | controller-2.redhat.local | None | XXX | UP | neutron-metadata-agent | | 56127db5-373d-4389-80b3-bd45173f1376 | Open vSwitch agent | controller-1.redhat.local | None | XXX | UP | neutron-openvswitch-agent | | 59089c9b-bca5-4817-987e-242116198b4c | DHCP agent | controller-0.redhat.local | nova | XXX | UP | neutron-dhcp-agent | | 683f166f-be40-466c-871e-f16b14e5239c | DHCP agent | controller-2.redhat.local | nova | XXX | UP | neutron-dhcp-agent | | 6deb2705-1cc5-4236-8872-4103d38ef043 | Open vSwitch agent | controller-0.redhat.local | None | XXX | UP | neutron-openvswitch-agent | | 7e539892-43f1-40a6-a127-66f2701ad72e | L3 agent | controller-0.redhat.local | nova | XXX | UP | neutron-l3-agent | | 9c80d220-8cb2-4320-80b7-817d001cf0ff | Metadata agent | controller-0.redhat.local | None | XXX | UP | neutron-metadata-agent | | b6268a95-20bb-4304-b816-cdc8af96dba4 | Open vSwitch agent | controller-2.redhat.local | None | XXX | UP | neutron-openvswitch-agent | | b7f5d148-08ab-4ef8-9f40-1e8643e11bcb | L3 agent | controller-2.redhat.local | nova | XXX | UP | neutron-l3-agent | | c0bade83-e0aa-4c2a-81e2-00e35f815632 | Open vSwitch agent | compute-0.redhat.local | None | XXX | UP | neutron-openvswitch-agent | | de0d35d9-9057-4d26-9832-7a73b88a1ad1 | Metadata agent | controller-1.redhat.local | None | XXX | UP | neutron-metadata-agent | | ee4b13ac-9505-4f35-ad9c-2521973e2ddb | L3 agent | controller-1.redhat.local | nova | XXX | UP | neutron-l3-agent | | a1ac09da-e8af-40d4-9ae2-0bce96788d8b | OVN Controller agent | compute-0.redhat.local | n/a | :-) | UP | ovn-controller | | 1a1bf616-cbe0-4815-9769-9b56ff555e59 | OVN Metadata agent | compute-0.redhat.local | n/a | :-) | UP | networking-ovn-metadata-agent | | 57ec835c-3e2f-462d-8731-5067fe9f1395 | OVN Controller agent | compute-1.redhat.local | n/a | XXX | UP | ovn-controller | | d840e3f4-28df-4053-8bc7-c24602b45bec | OVN Metadata agent | compute-1.redhat.local | n/a | :-) | UP | networking-ovn-metadata-agent | | d99ceb4a-3dac-410f-a75d-4935a5b7d771 | OVN Controller Gateway agent | controller-1.redhat.local | n/a | XXX | UP | ovn-controller | | f6d7edf3-1835-4d8d-a294-17c65b2ad08e | OVN Controller Gateway agent | controller-2.redhat.local | n/a | XXX | UP | ovn-controller | | 802e0f4a-d4a1-4414-b3f6-359d225497b6 | OVN Controller Gateway agent | controller-0.redhat.local | n/a | XXX | UP | ovn-controller | +--------------------------------------+------------------------------+---------------------------+-------------------+-------+-------+-------------------------------+ Version-Release number of selected component (if applicable): RHOS-16.1-RHEL-8-20200729.n.0 python3-networking-ovn-7.2.1-0.20200611133437.15f2281.el8ost.noarch python3-networking-ovn-migration-tool-7.2.1-0.20200611133437.15f2281.el8ost.noarch How reproducible: 100% Steps to Reproduce: 1. Run ML2OVS to ML2OVN migration procedure according to the official documentation procedure https://access.redhat.com/documentation/en-us/red_hat_openstack_platform/16.1/html-single/networking_with_open_virtual_network/index#migrating-ml2ovs-to-ovn 2. 3. Actual results: OVN agents are down Expected results: OVN agents are up and running Additional info:
Verified on RHOS-16.1-RHEL-8-20200813.n.0 with python3-networking-ovn-migration-tool-7.2.1-0.20200611133439.15f2281.el8ost.noarch Verified that OVN controllers are running after migration to OVN.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (openstack-neutron bug fix advisory), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2020:3568