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Doesn a two fiber bi-directional line switched ring (BDLSR) waste half of the line rate bandwidth?

April 26, 2017bandwidth bi-directional fiber Half line rate ring waste

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Doesn a two fiber bi-directional line switched ring (BDLSR) waste half of the line rate bandwidth?

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A. No. It can be shown that in all cases the aggregate bandwidth on a two fiber BDLSR is no less than the aggregate bandwidth on a path switched ring. In some cases that exemplify an inter-office transport ring, it can actually be shown that the aggregate bandwidth of a two fiber BDLSR can be larger than that of a path switched ring.