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A method for suppressing disorderly scheduling in multipath transmission scenarios using time delay offset
Abstract Multipath transmission enables packets to be distributed over different paths for transmission, and this method has made full use of individual link resources. However, most existing multipath transmission schemes lack suitable scheduling mechanisms and suffer from high disorder and packet loss. To address the disorder problem, this paper designs a delay offset method combined with link rejection or adaptive delay adjustment mechanism to suppress the packet disorder problem in multipath transmission scenarios based on an in-depth study of the background related to multipath transmission. Finally, a multipath link topology is built on the P4 simulation platform to implement the above method in code simulation, and the experimental results are compared and analyzed with other two scheduling mechanisms. The experimental results show that this method maintains the disorder level within 5% compared with the single-path transmission and the equivalent multipath method, but the transmission bandwidth is increased by nearly two times. Keywords: Software-defined network (SDN); programmable protocol independent message processing (P4); multipath; packet sequencing Research Briefs on Information & Communication Technology Evolution (ReBICTE)
DOI: 10.22667/ReBiCTE.2021.10.25.011 |