... 4 )20 /11 /20 04 15:51:48 ATMover (AAL), the ATM Layer, and the ATM Physical Layer: ATM Adaptation Layer (AAL) ATM Layer ATM Physical Layer Figure 1.10-1: The three ATM layers The ATM Physical Layer deals ... the ATM protocol stack consists of three layers: the ATM adaptation layer file:///D|/Downloads/Livros/computação /Computer% 20 Net %2 0Approach% 2 0Featuring% 2 0the% 2 0Internet/ ATMintro.htm (2 of 4 )20 /11 /20 04 ... document transfers, and financial applications require fully reliable data transfer, i.e., no data loss In particular, a loss of file data, or data in a financial transaction, can have devastating...