Panasonic 1200N Manual Do Utilizador

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Centillion 1200N ATM Switch User Manual
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NTP 297-8103-903
Glossary
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AAC
Actual Allocated Capacity
AAL 
ATM Adaptation Layer: The standards layer that allows multiple applications to 
have data converted to and from the ATM cell. A protocol used that translates 
higher layer services into the size and format of an ATM cell. 
AAL Connection 
Association established by the AAL between two or more next higher layer entities. 
AAL-1 
ATM Adaptation Layer Type 1: AAL functions in support of constant bit rate, time-
dependent traffic such as voice and video. 
AAL-2 
ATM Adaptation Layer Type 2: This AAL is still undefined by the International 
Standards bodies. It is a placeholder for variable bit rate video transmission. 
AAL-3/4 
ATM Adaptation Layer Type 3/4: AAL functions in support of variable bit rate, 
delay-tolerant data traffic requiring some sequencing and/or error detection 
support. Originally two AAL types, i.e. connection-oriented and connectionless, 
which have been combined. 
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