Multipath cocurrent transmission method based on SCTP (Stream Control Transmission Protocol)

Abstract

The invention relates to a multipath cocurrent transmission method based on an SCTP (Stream Control Transmission Protocol), relating to data transmission and communication among multiaddress host computers. The method is characterized in that multipath reachable paths are simultaneously utilized to carry out end-to-end data transmission by expanding a main standby path mechanism of the standard SCTP in the same SCTP relationship and adopting certain path detection and path selection strategies; meanwhile, distinguishing from the only correspondence mechanism of the path and the target address in the realization of the traditional SCTP protocol, the invention utilizes a (an original address and a target address) binary unit to define the path together so that the number of the available paths in the relationship to be maximal and the basis for realizing more complex paths is provided; finally, the invention is based on a Linux system to carry out code realization, and the data groups are sent strictly according to the designated original address and the target address under the condition of multiple available paths. The invention efficiently improves the throughput of end-to-end data transmission on the basis of keeping the advantage of strong fault tolerance of the standard SCTP protocol.

Description

technical field [0001] The SCTP-based multi-path concurrent transmission method belongs to the technical field of Internet transmission, and mainly involves data transmission and communication between multi-address hosts. Background technique [0002] In recent years, due to the coexistence of GSM, GPRS, 3G, Wifi, Wimax and other communication technology standards with different technical characteristics and the reduction of the cost of communication modules brought about by large-scale industrial production, smart mobile terminals are developing in the direction of multi-Radio. If the end systems have multiple simultaneously available heterogeneous radios, or multiple Ethernet interfaces, there will be multiple simultaneously available links between the end systems. It is a subject of great research value to study end-to-end multi-path data transmission protocols in heterogeneous networks, so as to effectively utilize various network resources and provide better support for...

AI Technical Summary

Problems solved by technology

The present invention implements the code based on the Linux system. Aiming at the problem that the traditional routing system cannot ensure that the data packets can be sent from the physical interface corresponding to the specified source address, a method of using IP policy routing is proposed, thereby realizing the routing in multiple paths. When available, data packets can be transmitted strictly according to the specified source and destination addresses

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