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AAL (ATM adaptation layer) - GovITwiki

AAL (ATM adaptation layer)

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The asynchronous transfer mode (ATM) layer where non-ATM data is converted toATM format. The AAL serves as the "glue" that connects traditional packet and framestructures with short; fixed-length ATM cells. It forms the top layer of the ATMversion of the Broadb and Integrated Services Digital Network (B-ISDN) protocolstack. See ATM and B-ISDN.

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