A data caching method comprises: receiving message data returned by a second device in response to a read command; dividing the message data into two paths of data according to a preset strategy, sending one of the two paths of data to a first random access memory for storage, and distributing the other path to a double data rate synchronous dynamic random access memory for storage through a first input first output queue, wherein a sum of a working bandwidth of the first random access memory and a working bandwidth of the double data rate synchronous dynamic random access memory is greater than or equal to a receiving bandwidth of the message data; and sending data stored in the first random access memory and data stored in the double data rate synchronous dynamic random access memory to a first device connected with network equipment.

The present disclosure provides an interface data processing method, a transmitting-end device and a receiving-end device. The method includes: mapping data to be processed into interface data based on a data type of the data to be processed, a data type which a receiving-end device can process and preset block description information; and sending the interface data to the receiving-end device.