Data processing method and apparatus

A data processing apparatus comprising a processor and a non-transitory computer readable medium containing instructions that when executed by the processor causes the processor to:

• receive X data streams through X physical lanes of an Ethernet interface, wherein the X data streams are sent by a first sender under driving of a first clock, the X physical lanes are in a one-to-one correspondence with the X data streams, and X is a positive integer;
• convert the X data streams into M data streams transmitted on M virtual lanes, wherein the M data streams are in a one-to-one correspondence with the M virtual lanes, and M is a positive integer;
• perform bandwidth adjustment on each data stream of the M data streams to obtain M first data streams, wherein the M first data streams are in a one-to-one correspondence with the M data streams, and bandwidth of each first data stream of the M first data streams is greater than bandwidth of a data stream of the corresponding M data streams;
• receive Y data streams through Y physical lanes of the Ethernet interface, wherein any physical lane of the X physical lanes is different from any physical lane of the Y physical lanes, the Y data streams are sent by a second sender under driving of a second clock, the Y physical lanes are in a one-to-one correspondence with the Y data streams, Y is a positive integer, a nominal working frequency of the first clock is equal to a nominal working frequency of the second clock, and an actual working frequency of the first clock is not equal to an actual working frequency of the second clock;
• convert the Y data streams into N data streams transmitted on N virtual lanes, wherein the N data streams are in a one-to-one correspondence with the N virtual lanes, and both each data stream of the M data streams and each data stream of the N data stream comprise an alignment mark AM and a data block group, wherein the AM is an immediate previous data block of the data block group, a quantity of bits comprised in the data block group is equal to a positive integer multiple of a quantity of bits comprised in the AM, and N is a positive integer;
• and
• perform bandwidth adjustment on each data stream of the N data streams to obtain N second data streams, wherein the N second data streams are in a one-to-one correspondence with the N data streams, the M first data streams and the N second data streams are transmitted under driving of a third clock, and bandwidth of each second data stream of the N second data streams is greater than bandwidth of a data stream of the corresponding N data streams.