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[LIU Yulong <2048979@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

We recently met an issue during VM live migration:
1. nova starts live migration
2. plug ports on new host
3. neutron-ovs-agent starts to process the port, but the port is in 'added' and 'updated' set at the same time.
4. because nova still not activate the destination port binding, so there is no local vlan for this port.

Then, ovs-agent met errors:
Error while processing VIF ports: OVSFWTagNotFound: Cannot get tag for port tap092f38ed-a7 from its other_config: {}


A fix should be added for ``setup_port_filters`` to remove ports of the "binding_no_activated_devices".

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2048979

Title:
  [ml2][ovs] ports without local vlan tag are processed on openflow
  security group

Status in neutron:
  New

Bug description:
  We recently met an issue during VM live migration:
  1. nova starts live migration
  2. plug ports on new host
  3. neutron-ovs-agent starts to process the port, but the port is in 'added' and 'updated' set at the same time.
  4. because nova still not activate the destination port binding, so there is no local vlan for this port.

  Then, ovs-agent met errors:
  Error while processing VIF ports: OVSFWTagNotFound: Cannot get tag for port tap092f38ed-a7 from its other_config: {}

  
  A fix should be added for ``setup_port_filters`` to remove ports of the "binding_no_activated_devices".

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