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Comparing POS and ATM interfaces

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1 Author(s)
R. Hay ; Spinent Commun., USA

Carrier-class Internet service providers (ISPs) must choose an appropriate interface for long-distance data transmissions. The two technologies they most often choose are packet-over-Sonet (POS) and asynchronous transfer mode (ATM). Vendor devices implement POS and ATM to transport data over Sonet (Synchronous Optical NETwork)-a standard for sending data over fiber-optic cables-and SDH (Synchronous Digital Hierarchy), which is Sonet's international equivalent

Published in:

Computer  (Volume:33 ,  Issue: 8 )