Thanks Dave and others! Actually we added cell scrambling (which we had in there at some point in this process) to both router ATM interfaces and the framing command you stated, and we got RX red lights on the box. But having that idea, removed the framing command, kept cell scrambling on the router int's AND added it to the LS1010 as well and boom, the circuits came up.
One note and question though, even though we can ping ip across the pvc in both directions now, on the LS1010, the "PING atm int atm 0/0/0 3 40 end-loopback" command does not work, however the same command for the 7500 does not work, and they now have identical PVC 3/x configs. Any thoughts on that? ..another GroupStudy question success! jason evans network engineer, hls stevens institute of technology (lowly) ccna Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=55295&t=55275 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]

