tree 05d47b260bd539c22190779d80273f97e73f0e9d
parent 7b0330d0d4547698d96dec81b458770e8300a131
author nick <np202g@att.com> 1527286969 -0400
committer nick <np202g@att.com> 1527286969 -0400

VOL-771 OLT heartbeat
Heartbeat thread that polls the OLT through the GRPC channel
Indications thread is cleanly exited when GRPC connection is lost and is restarted when connectivity is restored
ONU and OLT put in UNREACHABLE and UNKNOW states, logical ports disabled
Use of a connection signature to see if the loss of connectivity was just temporary network problem or if the OLT rebooted/ drivers restarted

Change-Id: I49362afb6025489473b92441de73ad8cc09de237