The Research And Implementation Of The Multi-path Encryption Transmission System Based On Routing Policy

Shunt Encrypted Transmission System is a multi-path Transmission System.Typically,the data is split and encrypted at the source address end,and then multi-path transports to decrypt and reassemble the destination address.However,in the process of multi-path transmission,the phenomenon of packet ordering,packet loss and network congestion can be encountered.In the case of limited network resources,how to design and implement the channel encryption transmission system is the key to solve the problem.Under the background of this research,this paper is optimized on the transmission layer and the network layer respectively.The research contents are divided into the following aspects.(1)According to problem of packet out of order in multi-path transmission,we evaluate criteria and model analysis out-of-order causes,influence factors and the harm of transmission system,and put forward the strategy of controlling packets out of order.By simulation,the design rationality of each function module of this strategy is validated,and the situation of packet disorder is reduced.(2)For path delay difference in multipath transmission,packet adjustment algorithm is proposed.The algorithm evaluates the communication path block of data transmission performance to predict the arrival time at the receiving end,and decides to block of data allocation strategy in a variety of access networks.(3)In view of the problem of load imbalance in shunt encryption transmission system,we put forward the strategies of the multipath perception and load balance,packet scheduling module based on the path to the quality of the data distribution,and in the receiving end of a packet reordering.According to the data packets originated and collided,different congestion control strategy and the retransmission mechanism.Aiming at the problem of path selection,we the analyze parameters affecting the quality of the path.Contrast to the traditional polling methods,a method based on path quality is proposed.The problem of oversize single path data can be avoided by detecting the actual condition of the accessibility calculation path of each path.According to problem of network congestion,we the analyze causes of congestion in multipath.In view of attribute values about the packet loss and delay,we determine the path of the current congestion state.Finally,according to the packet loss scenario,congestion control strategy is used for scheduling.