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[Launchpad Bug Tracker <1677496@xxxxxxxxxxxxxxxxxx>]

[Expired for neutron because there has been no activity for 60 days.]

** Changed in: neutron
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1677496

Title:
  [RFE] extent agent health report mechanism to support agentless
  situation

Status in neutron:
  Expired

Bug description:
  In neutron, when binding the port, the l2 mechanism agent driver will
  try to bind the port to the agent which it thinks is "alive". The
  current L2 agent in neutron will periodically report its health status
  to neutron-server, this health information is stored into the neutron
  DB table agent. So the determination of whether the agent is "alive"
  or not is depending on the timestamp of the periodical report.

  In opendaylight case(i.e. networking-odl), there is no l2 agent at
  all, and opendaylight can find the host status itself and notify
  networking-odl through websocket. So there is no need to periodically
  report from networking-odl to neutron about the health status.

  We need to extend the current agent health status mechanism to support
  those kind of agent-less situation. i.e. extend the determination of
  whether the agent is "alive" or not, so it's not based on timestamp of
  the report in the above agentless cases.

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