Everything about Traffic Grooming totally explained
Traffic grooming is the process of grouping many small
telecommunications flows into larger units, which can be processed as single entities. For example, in a network using both
time-division multiplexing and
wavelength-division multiplexing, two flows which are destined for a common node can be placed on the same wavelength, allowing them to be dropped by a single
optical add-drop multiplexer. Often the objective of grooming is minimizing the cost of the network. The cost of line terminating equipment (LTE) (also called add/drop multiplexers or ADMs) is the most dominant component in an optical WDM network's cost. Thus grooming typically involves minimizing the usage of ADMs.
This is similar to the use of
virtual channels and
virtual paths in
ATM networks.
Effective grooming requires consideration of the
topology of the network and the different routes in use. This is especially useful when dealing with
mesh networks.
Grooming Algorithms
The traffic grooming problem has proven to be computationally intractable in the general case. Hence heuristic solutions are typically used.
Further Information
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