Abstract: In general, in one aspect, the disclosure describes an apparatus including a receiver to receive a data packet as a plurality of data vectors over an interconnect. The interconnect includes a plurality of lanes. The apparatus also includes an error detector to detect errors in the data vectors. A buffer is used to store the data vectors received error free. A processor requests a retransmission of the packet if data vectors making up the packet are received with errors. The retransmission of the data packet includes at least a subset of the data vectors being transmitted on different lanes. An assembler reconstructs the data packet once the plurality of data vectors making up the data packet are stored in the buffer. The data packet can be reconstructed even if it was never sent correctly in a single transmission.