Patent ID: 9059844
Filing Date: 2015-06-16
Classification: H04L

Abstract:
1. An Ethernet apparatus comprising: a receiver for receiving data blocks; a generator for generating idle data blocks and inserting idle data blocks with the received data blocks; a transfer rate control unit configured to determine idle data blocks from the received data blocks to determine transfer rate of physical transmission lane in active state and to set a state of each of multiple physical coding sub-layer (PCS) lanes inside to be the same as a state of corresponding each of multiple physical transmission lanes based on state change information that indicates whether the each physical transmission lane is activated or not, and to remove idle blocks from the data blocks which are received at a transfer rate of a physical transmission lane in active state among the multiple physical transmission lanes; and a block allocating unit configured to allocate the data blocks from which the idle blocks have been removed to PCS lanes in active state that correspond to the physical transmission lanes in active state, wherein the transfer rate control unit is further configured to receive the state change information from an upper layer and to check the transfer rate of the physical transmission lane in active state according to the state change information, and wherein the receiver is further configured to generate no error even when an alignment block has not been received from a PCS lane in inactive state corresponding to a physical transmission lane in inactive state among the multiple physical transmission lanes.