Yeah the RSPAN VLAN.  
Hi All I have a M3048 stack (2) attached to a DarkTrace appliance, it needs all the VLANs to be seen, I only have 1 port mirrored to 1 VLAN at the moment, how can I add my range of VLANs to that port? Thanks E.  
M3048 switch - need a way to mirror multiple vlans through one port please?