What does the dirty flag mean in aFortiGate session?

What does the dirty flag mean in aFortiGate session?
A . Traffic has been blocked by the antivirus inspection.
B . The next packet must be re-evaluated against the firewall policies.
C . The session must be removed from the former primary unit after an HA failover.
D . Traffic has been identified as from an application that is not allowed.

View Answer

Answer: B

Explanation:

https://kb.fortinet.com/kb/viewContent.do?externalId=FD40119&sliceId=1