Hi Team, The below question is from the cert zone samples and it's confusing me slightly. They've given the answer as 'A' but I understand the VCI to be a local identifier only significant to the UNI but the VPI configuration must be the same at the local UNI at the remote node. Wouldn't that make it not a 'local' address by very definition? Answer 'B' seems more correct. Would any ATM guru/s like to clarify this for me? thanks Tim p.s. just realised I'm probably breaking all sorts of copyright/NDA stuff by copying this question and that I'll get flames from vigilantes everywhere - sorry won't do it again ;-) What is the purpose of VPI/VCI? How many bits are used for each? a) VPI/VCI is the ATM local addressing. The number of VCI bits is always 16, while the number of VPI bits is either 8 or 12. b) VPI/VCI is ATM addressing. The number of VCI bits is always 16, while the number of VPI bits is either 8 or 12. c) VPI/VCI is ATM addressing. The number of bits used is either 24 or 28. d) VPI/VCI is the ATM local addressing. The number of VPI/VCI bits is either 24 or 28. Answer a) VPI/VCI is the ATM local addressing. The number of VCI bits is always 16, while the number of VPI bits is either 8 or 12. Explanation VPI/VCI is the local ATM addressing, similar to the DLCI of the Frame Relay networks. The number of bits for VCI is always 16, while the VPI bits could be either 8 or 12. The VPI bit length of 8 bits is used in the UNI, while the VPI bit length of 12 is used in the NNI. _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
