Description
The Ethernet PMD sublayer is part of the Ethernet physical layer (PHY). The hierarchy is as follows:
- Data Link Layer (Layer 2)
- LLC (Logical Link Control Sublayer)
- MAC (Media Access Control Sublayer)
- RS (Reconciliation Sublayer) - This sublayer processes PHY Local/Remote Fault messages and handles DDR conversion
- PHY Layer (Layer 1)
- PCS (Physical Coding Sublayer) - This sublayer performs auto-negotiation and coding such as 8b/10b
- PMA (Physical Medium Attachment Sublayer) - This sublayer performs PMA framing, octet synchronization/detection, and scrambling/descrambling
- PMD (Physical Medium Dependent Sublayer) - This sublayer consists of a transceiver for the physical medium
Read more about this topic: Physical Medium Dependent
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