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I almost forgot that I promised to look up the EEE timing parameters from 1000BASE-T1. They are 3.6 us for T_s (time that sleep signal is transmitted before transmitter is turned off) and 10.8us for T_w (time to wake – the longest time the system has to wait before transmitting). Generally these will scale with baud. For example, 10GBASE-T is just a little shorter than this (it is 800 Mbaud, just a little faster), but 40GBASE-T is a lot shorter, 0.56us max for T_s, and 1.12us for T_w. George Zimmerman, Ph.D. President & Principal CME Consulting, Inc. Experts in Advanced PHYsical Communications 310-920-3860 |