SPAN Port

Hello,

I currently have a Fortigate 100D and have all 16 ports in a virtual switch.

I have a DarkTrace Probe plugged into port 16 and I am trying to get ports 1 - 15 to mirror to that port. It seems that I can mirror 1 port but not multiple ports.

I am running FortiOS 5.6.3 maybe its a limitation. Is this handled better under a new OS?

Thanks,