Silvia,
We can better help you if you could share the ATM interface and sub-interfaces' configuration lines. Feel free to sanitize them first before sharing though. It is common practice that when you use sub-interfaces on a router ATM port, you apply global Interface settings to the physical interface, but not IP addresses or vpi/vci settings for instance. So, I would think that the physical interface on your router does not have an IP assigned to it. Thus, you can't ping it. You should be able to ping the other sub-interfaces, provided that they have an IP address, form part of the routing table and there are no ACLs that prevent your host from getting the echo replies. My 2 cents Angel Leiva, EE, CCNP R&S + WAN, MCSE International Network Services 1255 Corporate Drive, Suite 210 Irving, TX 75038 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 05, 2003 9:43 AM To: [EMAIL PROTECTED] Subject: RE: ATM explanation [7:62502] Hi I dont want to ping the subinterface down, but the physical interface. And still does not reply. This behaviour is not card model linked. I have a feeling is something to do the NNI or LMI's but I cant not find the info. Any ideas? Thanks, Silvia Elaluf Silvia wrote: > > Hi Guys, > > I am not an ATM Expert and I need a proper explanation of why > when in a CISCO router with an ATM interface, if there is > multiple subinterfaces and one of the subinterfaces is down, it > is not possible to ping the interface? > Any ideas? > > Thanks > > Silvia Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=62515&t=62502 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]