This incident detects when an IPSec tunnel goes down if tunnel monitoring is
enabled on the tunnel.
Raise Condition
When a tunnel monitored IPSec VPN tunnel that goes down stays down for at least 7
mins. We'll refer to this as the hold timer window. If a tunnel flap incident is
also active for the same tunnel at the time of creating this Incident, that is
rolled under this as a correlated Incident.
Clear Condition
When the Tunnel comes back up and stays up for at least 15 minutes.
