Hi, I think your questions are quite in order and there is no reason to feel that you are dragging it on ....
What is the purpose of encapsulation (data-link layer)? To enable transportation of upper-layer data on the physical medium, right? It may help in this particular case to look at, for example, the fields that comprise the Frame Relay frame....Flags, Address, data, FCS, Flags. The Address field contains the DLCI, representing the connection between a DTE and the Switch....this is a layer 2 address (DLCI).... So, the encapsulation should actually be on the physical interface, not the software (sub)interface. May be:) Mwalie Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=71430&t=71421 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
