Methods and apparatus for breaking and resynchronizing a data link
AssigneeMarvell International Ltd.
InventorsFrancis Campana, William Lo
Life of this patent
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Abstract
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.
Claims20
A network device, comprising:
- a receiver configured to receive idle code groups or false carriers from a remote device, wherein the idle code groups indicate that there is no data to be sent from the remote device, and wherein the false carriers indicate a fault;
- a counter configured to count the at least one of the idle code groups or the false carriers detected during a predetermined period;
- and
- a trigger configured to
- (i) if the counter exceeds a predetermined threshold during the predetermined period, assert a first signal 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.
A method comprising:
- receiving, via a receiver of a network device, idle code groups or false carriers from a remote device, wherein the idle code groups indicate that there is no data to be sent from the remote device, and wherein the false carriers indicate a fault;
- counting the at least one of the idle code groups or the false carriers detected during a predetermined period via a counter;
- if the counter exceeds a predetermined threshold during the predetermined period, asserting a first signal to resynchronize the network device to the remote device;
- and
- counting a number of times the first signal is asserted without bringing down a link between the network device and the remote device.
Dependencies are inferred from the claim text.