Adaptive redistribution of traffic heterogeneous in acceptable delays with transmission replication during route reconfiguration in nodes connecting segments of multipath networks

Vladimir Bogatyrev, Stanislav Bogatyrev, Anatoly Bogatyrev
Increasing reliability and reducing delays in multipath networks is achieved due to redundancy of paths and the ability to balance their workload. The possibility of increasing the reliability of transmissions and reducing the delays of the most critical packets is provided by the replication of packet transmissions along different routes of their delivery to the addressee. The article explores additional possibilities for reducing delays and increasing the probability of timely delivery of the most critical requests in the two-stage formation of routes with a possible change in the multiplicity of replication in communication nodes connecting different ways of delivering packages to the addressee. In case of redundant transmission of packets from the request source during route reconfiguration, replication is carried out on the packet delivered first in time. Approaches to reaching a compromise on ensuring timely delivery of a heterogeneous stream to the addressee with different criticality to acceptable network delays are considered. Optimization was carried out under the conditions of uncertainty of changes in traffic intensity. The optimization is compared by the average traffic intensity and with adaptive optimization, taking into account traffic changes. The efficiency of the formation and routes from the source of requests with additional reconfiguration is shown when it is possible to change the multiplicity of transmissions in intermediate communication nodes connecting the formed data delivery paths to the addressee.