The IEEE 802.3 BER state diagram defines a PCS HI BER threshold of 16 invalid 66B sync headers within a 125µs window for 10GE. This equates to an invalid sync header rate of approximately 8.19E-4.
ONT generates the PCS HI BER alarm by inserting approximately 32 invalid sync headers within the 125µs window. This equates to an invalid sync header rate of approximately 1.6E-3 and exceeds the threshold defined by the standard.
ONT generates the PCS HI BER alarm by inserting approximately 32 invalid sync headers within the 125µs window. This equates to an invalid sync header rate of approximately 1.6E-3 and exceeds the threshold defined by the standard.