BELLCORE
Bell Communications Research, Inc.
LLC2
Logical Link Control Class 2
QLLC
Qualified Logical Link Control
AAL
Asynchronous transfer mode (ATM) Adaptation Layer
AAL1
Asynchronous transfer mode (ATM) Adaptation Layer 1
AAL2
Asynchronous transfer mode (ATM) Adaptation Layer 2
AAL3
Asynchronous transfer mode (ATM) Adaptation Layer 3