To provide methods, apparatus and systems for implementing physical media attachment (PMA) alignment and rapid transition from a link training mode to a data mode for next-generation high-speed Ethernet links including a 100 Gbps Ethernet(R) link.
Training frames are transmitted between first and second Ethernet interfaces on opposing ends of the link in a pair-wise manner, with a first training frame being sent from the first Ethernet interface and a second training frame being returned from the second Ethernet interface. The training frames have a different length than physical media attachment (PMA) frames, and the returned training frames include receiver readiness status indicia identifying a readiness status of a local receiver port, frame alignment offset data, and countdown data.
ADEE O RAN
| US20100229071A1 | 2010-09-09 |
Tadahiko Ito
Shinsuke Onuki
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