Set the Action to take when matching a packet:
Forward-Directs the packet to the specified Egress Interface.
Forward to VSYS (On a firewall enabled for multiple virtual systems)-Select the virtual system to which to forward the packet.
Discard-Drops the packet.
No PBF-Excludes packets that match the criteria for source, destination, application, or service defined in the rule. Matching packets use the route table instead of PBF; the firewall uses the route table to exclude the matched traffic from the redirected port.
https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-admin/policy/policy-based-forwarding/create-a-policy-ba