I have read through other conversations, I think I am configuring everything exactly like I should, but I still don't see traffic from the source pc in my trace file. I have a 2950 with version 12.1(13)EA1b--that has the source port configured and a reflector-port, which is not hooked up to anything. Then I have a 3560 with version 12.2(24)SEB4 that has a port set up as the destination port. I know my RSPAN VLAN works because I tried it out before, but not on a switch that requires a reflector port. When I read about reflector ports, it said that it had to have its loopback set. What does that mean? My destination port appears to be working because I can't ping out or anything on it. And the reflector-port on the 2950 is blinking, so I am thinking it is at least attempting to work. Any ideas on what I am doing wrong?