Comment 3 for bug 1881311

I am not sure that using project_id would help as (at least as I know) we have 2 projects: admin & tenant, so possibly other resources (trunks in this case) will have the same project_id.
What about changing names to be more specific for the given testclass:
https://opendev.org/openstack/neutron-tempest-plugin/src/branch/master/neutron_tempest_plugin/api/test_trunk.py#L317
If I understand the names are in a list here:
https://opendev.org/openstack/neutron-tempest-plugin/src/branch/master/neutron_tempest_plugin/api/base.py#L1203

so when in test_trunk.py the names are used in the loop to create trunks, just add __name__ to the fetched name chunks:
for name in cls.resource_names:
    ....
    cls.create_trunk(parent_port, name='%s%s' % (name, cls.__name__))