Multi-path transmission control terminal and method for supporting multi-service data transmission

Abstract

The invention relates to a multi-path transmission control terminal and a method for supporting multi-service data transmission, and belongs to the technical field of network communication. The terminal is arranged on an end point of data transmission and comprises a multi-path session management module, a path management module, a flow division module, a path selection module, a substream sending control module, a substream receiving control module, a rectification recombination module, a path transmission quality report module and a path evaluation module. When data stream of an upper application is received, the data stream is divided into stream blocks, a path is selected for each stream block, stream blocks dispatched to the same path form a substream, the stream blocks are further divided into transmission units and are packaged into multi-path transmission packages and are transmitted to an opposite terminal, according to the path transmission quality fed by the opposite terminal, a path selection strategy is dynamically adjusted; when the multi-path transmission data packages are received, substream data is recombined and is further recombined into data streams and the data streams are transmitted to the upper application. The terminal and method can meet different transmission requests of various business types, and the multi-path transmission efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of network communication, and in particular relates to a multi-path transmission control terminal and method supporting multi-service data transmission requirements. Background technique [0002] If the business data meets the concurrent transmission conditions, compared with the single-path transmission mode, the multi-path transmission mode can not only reduce the dependence on the single-path transmission quality conditions, expand the end-to-end transmission capacity, but also through mechanisms such as path redundancy and dynamic load distribution, It can realize fault-tolerant communication and improve transmission reliability. For applications such as file sharing and high-definition audio and video communications, multi-path transmission technology can effectively improve data transmission efficiency and increase system scalability. [0003] In order to realize the multi-path transmission of busines...

AI Technical Summary

Problems solved by technology

Dividing traffic according to the granularity of data packets can quickly and accurately allocate the desired traffic to each path. However, when the concurrent paths have large delay differences, the packet-based data flow division strategy results in a large amount of data. out of order

Divide the traffic according to the flow granularity, and assign each flow to a specified path. Although packet disorder can be avoided, since the flows usually have large differences in size and rate, it is likely that mismatched traffic is assigned to the path. , or cannot quickly rebalance the traffic of each path in a dynamic environment, resulting in congestion of some links and reducing the efficiency of the network

In addition, most of the existing multipath transmission control mechanisms are used in the backbone network, such as OSPF (Open Shortest Path First) that supports ECMP (Equal-Cost Multi-Path, Equal-Cost Multi-Path Routing) in the network. Routers or MPLS (Multi-Protocol Label Switching, Multi-Protocol Label Switching) ingress routers, etc. These routers distribute the aggregated traffic composed of multiple independent flows, which cannot meet the multi-path transmission control requirements based on application layer relays

Images