Patent ID: 8630289
Filing Date: 2014-01-14
Classification: H04L

Abstract:
1. A switching device of a dual-port Ethernet system, the switching device comprising: a media access controller configured for: a transceiver buffer connected to the upper layer device via buses and configured for: wherein the data distributor is configured for transferring the frame received from the media access controller to at least the transceiver buffer or a switch buffer, wherein the switch buffer is configured for receiving the frame transferred from the data distributor and determining whether to transmit the transferred frame to the data selector of the another media access controller, wherein the data selector of the another media access controller is configured for: wherein the data distributor is further configured for generating a first pointer for the frame received from the media access controller and generating a second pointer for the frame received from the switch buffer, wherein the switch buffer is further configured for outputting an error signal to the data selector when a value of the second pointer is greater than a value of the first pointer, and wherein the output error signal prevents the data selector from receiving the frame transmitted by the switch buffer.