ATM Option System Reference - Comtech EF Data
ATM Option System Reference - Comtech EF Data
ATM Option System Reference - Comtech EF Data
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AAL0 Adaptation Layer<br />
Product Overview<br />
• Provides transparent support of all cells in any type of <strong>ATM</strong> Adaptation Layer:<br />
AAL1 to AAL5, inclusive<br />
• Should be selected for transporting AAL types other than AAL5<br />
• No idle cells are transmitted, only cells that are defined with a VPI/VCI combination<br />
• Traffic is processed on a per cell basis.<br />
AAL5 Adaptation Layer<br />
• For use with variable bit-rate traffic in a connection-oriented mode (refer to<br />
“AAL5: for use with variable bit-rate traffic in a connection-oriented mode. Also<br />
known as Simple and Efficient Adaptation Layer (SEAL).” on page 1-4 for a<br />
complete description of this AAL type)<br />
• Transfers AAL5 traffic from one site to another<br />
• Cells are accumulated into AAL5 frames before being transferred to the destination<br />
unit.<br />
Memotec Inc. 1-25
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