PMA-size training frame for 100GBASE-KP4
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United States of America Patent
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Aug 18, 2015
Grant Date -
May 29, 2014
app pub date -
Apr 25, 2013
filing date -
Nov 29, 2012
priority date (Note) -
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Abstract
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 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 a first Ethernet interface and a second training frame being returned from the second Ethernet interface. The training frames have a length that is the same as the length of Physical Media Attachment (PMA) frames, and the returned training frames include receiver readiness status indicia identifying a readiness status of a local receiver port, and countdown data. The readiness status indicia, and countdown data are employed to facilitate a rapid transition from the link training mode to the data mode.
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