scope:

This European Telecommunication Standard (ETS) specifies the interactions between the Asynchronous Transfer Mode (ATM) Adaption Layer (AAL) type 5 and the next higher layer, and the AAL type 5 and the ATM layer, as well as AAL type 5 peer-to-peer operations. This ETS is applicable to variable bitrate sources where there exists no timing relation between the source and the destination of the data. This ETS defines the common part of AAL type 5 and can be complemented with standards for the service specific part of the convergence sublayer.