What is the max number of SPAN sessions that can be done on a Cisco 6513 switch? I've tried reading Cisco's docs but am still confused. Is says 2 (ingress or egress or both) but then the total says 66 per switch. I've also read elsewhere that you can have a max of 4 tx or rx only sessions or 2 both (tx & rx). I'm confused and it would be great if someone could help clarify. Thanks!