Message:Controller Name: <message> Status: <>
Message Type: LOG
Severity: INFO
Probable Cause: Indicates that an OpenFlow controller has been connected/connecting.
Recommended Action: No action is required.
Message: Controller Name: <message> Status: <> Reason: <>
Message Type: LOG
Severity: INFO
Probable Cause: Indicates that an OpenFlow controller has been disconnected/disconnecting.
Recommended Action: No action is required.
Message: Controller Name: <message> role changed to: <>
Message Type: LOG
Severity: INFO
Probable Cause: Indicates that an OpenFlow controller has changed Role
Recommended Action: No action is required.
Message: Warning Message: <message>
Message Type: LOG
Severity: WARNING
Probable Cause: Warning message in openflow (DEPRECATED)
Recommended Action: Please check the warning
Message: Controller Name: <message>, xid <> (0x<>), Command: <>, Reason: <>
Message Type: LOG
Severity: ERROR
Probable Cause: Indicates an error with openflow protocol
Recommended Action: Re-check the openflow protocol message sent
Message: Controller Name: <message>, xid <> (0x<>), Command: <>, Reason: <>
Message Type: LOG
Severity: ERROR
Probable Cause: Indicates that the flow/group/meter operation failed.
Recommended Action: Re-check the flow/group/meter mod message. This could be either due to protocol error or hardware limitation.