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Ablue
Asked: 2014-11-06 18:32:43 +0800 CST

Simplex, half-duplex, full-duplex (ccent1)

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If simplex, half and full duplex are OSI layer 5 (session layer) modes, why are they configurable on a l2 switch?

networking

1 Answers

  1. Best Answer

    Medium directionality (L2) and protocol directionality (L5) are independent concepts.

    I've never seen a L2 switch that included "simplex" in the port configuration, though such a configuration might be possible with security settings. Half and full duplex are only applicable to 10 and 100 Mb connections. 1 and 10GbE are natively full duplex.

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