Comment 84 for bug 1734320

Reviewed: https://review.opendev.org/686345
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=ffee956d44da34e38e62f82a3bc676cdd6179f48
Submitter: Zuul
Branch: stable/rocky

commit ffee956d44da34e38e62f82a3bc676cdd6179f48
Author: Sean Mooney <email address hidden>
Date: Thu Nov 8 16:07:55 2018 +0000

    raise priority of dead vlan drop

    - This change adds a max priority flow to drop
      all traffic that is associated with the
      DEAD VLAN 4095.
    - This change is part of a partial mitigation of
      bug 1734320. Without this change vlan 4095 traffic
      will be dropped via a low priority flow after being
      processed by part/all of the openflow pipeline.
      By raising the priorty and droping in table 0
      we drop invalid packets as soon as they enter
      the pipeline.

    Change-Id: I3482c7c4f00942828cc9396cd2f3d646c9e8c9d1
    Partial-Bug: #1734320
    (cherry picked from commit e3dc447b908f57e9acc0378111b8e09cbd88ddc5)