After a stack update, neutron shows error message `Tunneling can't be enabled with invalid local_ip 'None'. IP couldn't be found on this host's interfaces` in Red Hat OpenStack Platform

Solution In Progress - Updated -

Issue

After an overcloud update with template changes, neutron logs show ERROR messages such as:

ERROR neutron.plugins.ml2.drivers.openvswitch.agent.ovs_neutron_agent [-] Tunneling can't be enabled with invalid local_ip 'None'. IP couldn't be found on this host's interfaces.

Environment

Red Hat OpenStack Platform 10
Red Hat OpenStack Platform 13

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