Helper method to change status of port to abnormal state is needed in ml2.

[Kengo Hobo]

Some mechanism drivers cooperate with another backend(SDN controller).
In this case, drivers may want to change status of port so that
user can recognize process for the port is failed when failure in calling to backend.

However, currently there is no helper function in PortContext to change status of port to
abnormal status.

[Robert Kukura (rkukura)]

I agree something is needed here. There had been some discussion at a mid-cycle of how to do this in a way that rolls up multiple MDs' individual statuses into the resource's overall status. Simply letting any MD set the resource's status is probably not sufficient with multiple drivers, as with HPB or heterogeneous deployments. A proposal handling this would be welcome.

[Miguel Angel Ajo (mangelajo)]

I agree, even in some cases there could be errors, because an l2 agent extension could eventually not be able to handle a setting, and while the port would be working, some of the characteristics could have not been set.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/336068

[Armando Migliaccio (armando-migliaccio)]

This bug is > 180 days without activity. We are unsetting assignee and milestone and setting status to Incomplete in order to allow its expiry in 60 days.

If the bug is still valid, then update the bug status.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Trevor McCasland (<email address hidden>) on branch: master
Review: https://review.openstack.org/336068

[Rodolfo Alonso (rodolfo-alonso-hernandez)]

Bug closed due to lack of activity, please feel free to reopen if needed.