AAL-2-A new ATM adaptation layer for small packet enecapsulation and multiplexing

摘要

Asynchronous transfer model (ATM) networks carry fixed-size cells within the net- work irrespective of the applications being supported. At the network edge or at the end equipment, an ATM adaptation layer (AAL) maps the services offered by the ATM network to the services required by the application. Many trunking applications That have vice compression and silence suppression require transmission of small Delay-sensitive packets. Existing AALS are very inefficient for this purpose.