tree 31b2fa3a76c38f00a0ab5a45fca5a4d17508e45f
parent fde702471743115e7492951873dd48ba3dbc66bb
author jrh3 <jrh3@att.com> 1560264985 -0400
committer jrh3 <jrh3@att.com> 1560288215 -0400

Add PDP heart beat expiration timer

Added heart beat interval to the PDP-UPDATE message sent in response
to a heart beat message received from a PDP.
Added timers to detect missing heart beats and remove the PDP from
the DB - PdpTracker.
Modified current heart beat listener to update PdpTracker when a
heart beat is received.
Allow 3 missed heart beats instead of 2.

Change-Id: I81621fefbe494e0c4d6f0b9767b00b2a9dd398d8
Issue-ID: POLICY-1795
Signed-off-by: jrh3 <jrh3@att.com>