Advantages of OBS over OCS

More efficient bandwidth utilization - In a OCS system, a lightpath must be set up from source to destination in the optical network. If the data transmission duration is short relative to the set up time, bandwidth may not be efficiently utilized in the OCS system.

In comparison, OBS does not require end-to-end lightpath set up, and therefore may offer more efficient bandwidth utilization compared to an OCS system. This is similar to the advantage offered by packet switching over circuit switching.

July 21, 2011

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