| 摘要 |
The invention concerns an improvement to an auto-negotiation process for a link between network devices and in particular the avoidance of ambiguity when signals at a higher rate, such as 100BASE-Tx scrambled idle signals, resemble signals at a lower rate, such as 10BASE-T link pulses. Analog and digital filtration is employed to identify 100BASE-Tx energy more accurately and a resultant indicating signal is used in conjunction with another signal characteristic of the higher rate signals, such as a descrambler lock signal, to ensure that the link is not established unless the bit error rate is reasonably low. |
