A data exchange system and method

Abstract

The invention discloses a data exchange system. The data exchange system includes a CPU, a DDR, an acceleration module, an ONU and a wireless network device; the acceleration module reads the first Ethernet data in the DDR and sends the first descriptor to the ONU; Establish the MAC address table according to the first Ethernet data and the first descriptor sent by the received ONU; modify the first descriptor by querying the MAC address table, and send the first Ethernet data and the first descriptor to the ONU; CPU, in When the first Ethernet data received by the ONU and the destination port of the data in the first descriptor are unknown, the first descriptor is modified by configuring the destination port of the data; the ONU sends the first Ethernet data to the The data destination port specified by the first descriptor. The invention also discloses a data exchange method.

Description

technical field [0001] The present invention relates to communication technology, in particular to a data exchange system and method. Background technique [0002] The Passive Optical Network (PON) system consists of an Optical Line Terminal (OLT), an Optical Network Unit (ONU), and an Optical Distribution Network (ODN) connected between the OLT and the ONU. ) equipment composition. As an optical communication device placed on the user side, the ONU can provide users with various services such as voice, video, and wireless. [0003] Traditional wireless data is processed through CPU software acceleration, such as figure 1 In the shown wireless data processing flow, the ONU 140 includes a communication-connected data exchange module 141 and a packet processing module 142. After the ONU 140 receives the optical signal sent by the central office device and undergoes photoelectric conversion, the data is converted into Ethernet data; The network protocol stack module 111 in t...

AI Technical Summary

Problems solved by technology

Among them, the data in the ONU140 and DDR120 are processed by the CPU110, which puts forward higher requirements on the processing capability of the CPU. At the same time, it also increases the occupancy rate of the CPU and affects the processing speed of the CPU. Network performance is also affected

[0004] As the business supported by the ONU gradually increases, the business that the CPU needs to support in the wireless data processing process also increases accordingly. The increase in CPU usage reduces the ONU's support for other services other than wireless services, which affects the competitiveness of the ONU.

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