Hey guys- I'm stumped... Yesterday I installed a Ethernet probe on a Catalyst 6509. I needed to watch a VLAN, due to a high rate of collisions within a subnet. I didn't use the Probe's tap (which is a hub device). I ran the management connection (which has an IP) & the probe connection (listening side) into the 6509. I had connectivity & could Ping from the Ethernet probe out, so I figured the rest could be done remotely. Now I'm 2 hours away from the site & I need to figure out what connection on the VLAN (the one I want to monitor) is the uplink to the router (what Slot/ Port). I need to issue the "Set Span" command, making TAP port on the 6509, a listening port to the uplink port (much like a hub would have done). How do I see the physical connections from the CLI ??? If all else fails- tomorrow I'll turn on CDP Neighbors @ the router & see what I see... Thanks !!! Phil _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]