The VBR-NRT parameters musr matche the ATM Carrier Switch settings. So If the Carrier ATM Switch is set for UBR then You can't just change your ATM interface parmaeters from UBR to VBR/NRT. You have to match the Carrier ATM Switch settings only.
Also try: sh atm vc to see the VPI/VCI values of peak Mbps, Ave Mbps and Min Burst Cell size, these also Must mtach the ATM Switch on carrier side. Let me know Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=47861&t=47849 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]