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[venkata anil <anil.venkata@xxxxxxxxxxxx>]

Public bug reported:

When multiple api and rpc workers enabled for neutron-server, sometimes
ovs agents fail to create flood flows to other  ovs agents. This is
frequently reproducible when multiple api and rpc workers enabled during
migrations and also during evacuations of instances  from one node to
other. Some times tunnel ports are also not created.

In these scenarios, l2pop driver is not notifying agent to create tunnel
ports and flood flows, hence agent is unable to create flood flows to
other agents.

** Affects: neutron
     Importance: Undecided
     Assignee: venkata anil (anil-venkata)
         Status: In Progress

** Changed in: neutron
     Assignee: (unassigned) => venkata anil (anil-venkata)

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https://bugs.launchpad.net/bugs/1555600

Title:
  with l2pop sometimes agents fail to create flood flows with multiple
  workers

Status in neutron:
  In Progress

Bug description:
  When multiple api and rpc workers enabled for neutron-server,
  sometimes ovs agents fail to create flood flows to other  ovs agents.
  This is frequently reproducible when multiple api and rpc workers
  enabled during migrations and also during evacuations of instances
  from one node to other. Some times tunnel ports are also not created.

  In these scenarios, l2pop driver is not notifying agent to create
  tunnel ports and flood flows, hence agent is unable to create flood
  flows to other agents.

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