Method and system for packet based signaling between A Mac and A PHY to manage energy efficient network devices and/or protocols
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United States of America Patent
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Apr 26, 2016
Grant Date -
May 6, 2010
app pub date -
May 22, 2009
filing date -
Jun 22, 2006
priority date (Note) -
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Abstract
In an Ethernet network comprising link partners that are coupled via an Ethernet link, an energy efficient network (EEN) communication control policy may be established above a MAC layer. The EEN control policy may determine a power level mode of operation for the link partners. Power level mode control data may be communicated from hardware, software and/or firmware of upper layer protocols to PHY devices. The control data may specify when, where and/or how long to implement the power level mode. The control data may be communicated via a “magic” packet comprising start and/or end of frame delimiters and bits that indicate the power level mode. The PHY devices may detect, parse and/or interpret the “magic” packet and may enter and/or exit a lower power mode of operation. The PHY devices may respond to by generating a magic packet and sending the packet to upper layers.
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