Research And Implementation On Efficient Communication Mechanism Based On Equipment Board

At present,the inter disk communication adopts the DIPC communication protocol based on the Ethernet mode.The data validation and data retransmission mechanism are provided by the protocol to ensure the reliability of data transmission.Using the DIPC protocol in the existing equipment to communicate with the main control and single disk,we can find when the single disc application can not receipt of DIPC messages timely,often appear problems that a large number of DIPC packets accumulate in the kernel and thus causing the application to be killed forcibly by operating system;also have configuration lost in the main control and single disk communication.The problem can not be located because there is no detailed statistics and log method.Based on the problems in the application scenarios above,there is a need to develop and reconstruct the inter disk communication mechanism.This thesis mainly carry out the research on the efficient communication mechanism based on equipment board in the hardware adaptation layer and inter disk communication protocol,implement the transformation of the disk configuration related functions,as well as the processing mechanism for a large number of data packets.The main contents are as follows:(1)Introduce the general model of software programs,first of all,the transformation of the DIPC inter disk communication protocol,then abstract a DIPC middle layer between the application layer and DIPC protocol layer,the middle layer of DIPC layer implements the neighbor state maintenance function,data flow control function and information statistics and other functions based on the DIPC protocol,then the transformation of the configuration management module and adaptive module in the hardware adaptation layer.(2)Introduce the architecture of DIPC inter disk communication protocol,including the implementation of interface and module function,including the implementation of interface and module function,also lead into packet back pressure mechanism between DIPC STUB and transport network element,when the target node buffer queue threshold is reached,it will send through the return value to prompt the application layer to do data back pressure.(3)Introduce the overall software architecture of the hardware adaptation layer,configuration management module realizes configuration aging recovery function and configuration downlink function,adaptive module is compatible and easy to use fault tolerance.According to the local equipment test environment,the transformation of the hardware adaptation layer and the transformation of the DIPC inter disk communication protocol are tested respectively.The experimental results show that the functions of inter disk configuration are more efficient,log information is increased,location is more convenient,data processing is much more efficient,and the sending time is reduced.Both of them greatly improve the communication efficiency between equipment boards.