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Mechanism that provides continuous bandwidth through the network from end to end for transport of a payload associated with a "superrate service" such as SONET or SDH. The set of bits in the payload is treated as a single entity and accepted, multiplexed, switched, transported, and delivered as a single piece of payload data. Applications that use concatenation include bandwidth-intensive video such as HDTV and high-speed data.

Related Terms:

Synchronous Digital Hierarchy
Synchronous Optical Network