Methods and apparatus for breaking and resynchronizing a data link

摘要

A network device including a receiver, a counter, and a trigger. The receiver is configured to receive idle code groups or false carriers from a remote device. The idle code groups indicate that there is no data to be sent from the remote device, and the false carriers indicate a fault. The counter is configured to count the at least one of the idle code groups or the false carriers detected during a predetermined period. The trigger is configured to (i) assert a first signal if the counter exceeds a predetermined threshold during the predetermined period to resynchronize the network device to the remote device and (ii) count a number of times the first signal is asserted without bringing down a link between the network device and the remote device.