Public bug reported: The patch [1] is incorrectly handling the port binding of the subports. This is a more complex operation than just updating the "PortBinding" object. In order to change the port binding host ID, it is needed to remove all "PortBinding" and "PortBindingLevels" registers and create new ones pointing to the new host ID.
This patch is also breaking the cold migration process in ML2/OVN environments with Trunk ports. The subports are not receiving the DHCP information because OVN is not creating the DHCP flows that attend to the DHCP requests. For example [2]. The recommended action is to revert the mentioned patch. [1]https://review.opendev.org/c/openstack/neutron/+/882581 [2]https://paste.opendev.org/show/bVnaVLVP9fkrm0QlXtYc/ ** Affects: neutron Importance: High Assignee: Rodolfo Alonso (rodolfo-alonso-hernandez) Status: In Progress ** Changed in: neutron Assignee: (unassigned) => Rodolfo Alonso (rodolfo-alonso-hernandez) ** Changed in: neutron Importance: Undecided => High -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/2033887 Title: [OVN][Trunk] The cold migration process is broken since patch 882581 Status in neutron: In Progress Bug description: The patch [1] is incorrectly handling the port binding of the subports. This is a more complex operation than just updating the "PortBinding" object. In order to change the port binding host ID, it is needed to remove all "PortBinding" and "PortBindingLevels" registers and create new ones pointing to the new host ID. This patch is also breaking the cold migration process in ML2/OVN environments with Trunk ports. The subports are not receiving the DHCP information because OVN is not creating the DHCP flows that attend to the DHCP requests. For example [2]. The recommended action is to revert the mentioned patch. [1]https://review.opendev.org/c/openstack/neutron/+/882581 [2]https://paste.opendev.org/show/bVnaVLVP9fkrm0QlXtYc/ To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/2033887/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp

