What is application db = 0 and app.id c2s node (0, 0) s2s node (0, 0) in session id command

[Srivastava]

Hello Folks,

I am looking for some more information on session id command outputs. I see a session in free state with 

 application db  = 0 and  app.id  c2s node (0, 0)    s2s node (0, 0) . What does this mean ?

Is this that app-id engine of PAN is not able to identify any application with no c2s or s2c flows ?

 application db                       : 0

        app.id                               : c2s node (0, 0)    s2s node (0, 0)

        session to be logged at end          : True

        session in session ager              : False

        session updated by HA peer           : False

        address/port translation             : source

[gwesson]

Free is a transient state that is generally rather short in life. Since the session state is under transition, there isn't much of value in the session state. Here's a list of the states and their meanings:

https://live.paloaltonetworks.com/t5/Management-Articles/Session-States-and-Types/ta-p/62572

Application DB being zero is related. That session isn't referencing any current app-id database since there is no app at all, so that's all it means.