Connecting management and control method suitable for multi-path transmitting

Abstract

The invention provides a connecting management and control method suitable for multi-path transmitting. According to the technical scheme, sub-flow states are decomposed into an INUSE state and a STANDBY state, sub flows are built among all IP addresses sets of the two communicating parties firstly, and all the sub-flow states are set as STANDBY, and the sub flows are not used for transmitting user data; then one end of communication is chosen to serve as a sub flow performance test main control terminal and is used for measuring the round-trip delay of all the sub flows on each network interface and the sub flow which is of the minimum round-trip delay is selected on each network interface to set as the INUSE state to be used for transmitting the date. Accordingly, the two communication terminals with multiple network interfaces can use the partial sub flows with better performance in all the possible sub flows to transmit the data, so that the advantages brought by the multiple network interfaces can be adopted, better handling capacity is obtained, the number of the used sub flow is reduced as far as possible, and cost of sub flow scheduling management is reduced.

Description

technical field [0001] The invention relates to a connection management and control method suitable for multi-path transmission, belonging to the technical field of computer networks. Background technique [0002] With the development of broadband access technology, terminal devices with multiple network interfaces are becoming more and more popular. For example, most smart phones have the connection functions of WLAN (Wireless Local Area Network) and mobile cellular network at the same time, and notebook computers usually have a wired LAN adapter and a wireless LAN adapter. However, the traditional transmission control protocol TCP (Transmission Control Protocol) is a one-to-one transmission protocol, and cannot use multiple pairs of network connections at the same time. Therefore, the advantages of multiple network interfaces of the current network equipment cannot be fully utilized, which causes a lot of waste of network bandwidth resources. [0003] Multipath Transmiss...

AI Technical Summary

Problems solved by technology

[0009] The defect of the above-mentioned prior art is: in the process of MPTCP connection management, when creating a new sub-flow, the communication parties can establish a sub-flow on an address pair that is not currently used; however, whether the sub-flow between the pair of IP addresses is the most optimal good choice

[0010] However, so far, in the current MPTCP connection management process, the above-mentioned factor has not been considered when the sub-flow is established, and there is a possibility of establishing a sub-flow on a poor transmission path

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