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Experts on Demand
Can you use a serial interface with an ATM circuit? The circuit size is a DS1. I am having some issues with my co-workers because there is a problem with some sub-interfaces (e.g., se0/1.48, .49 etc.) on a serial Interface. I do not think this is an ATM circuit, but they do. Please help.
QUESTION POSED ON: 20 OCT 2005
QUESTION ANSWERED BY: Bob Konigsberg
Yes. Virtually all WAN circuits are serial in one form or another. Using a serial line for ATM requires that you have an ATM Data Service Unit (ADSU), and that you set up the proper encapsulation and virtual circuits. So the question becomes: Why do you think it's not an ATM circuit? The actual bit stream going over the circuit has very little to do with the network layers and protocols that sit on top of it. As long as the framing, checksums, parity and the like are correct, you can run pretty much anything on top of anything, including some combinations that make no sense at all (like ATM over frame relay).
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