Hi,
Not-applicable
Not-applicable means that the Palo Alto device has received data that will be discarded because the port or service that the traffic is coming in on is not allowed, or there is no rule or policy allowing that port or service. For example, if there was only one rule on the Palo Alto device and that rule allowed the application of web-browsing only on port/service 80, and traffic (web-browsing or any other application) is sent to the Palo Alto device on any other port/service besides 80, then the traffic is discarded or dropped and you'll see sessions with "not-applicable" in the application field.
Thnaks
... View more