Multichannel non-blocking system area network with direct channels

Three new versions of a non-blocking self-routed network with direct channels have been developed, in which packet collisions are detected and resolved at the entrance to the network. Collision-blocked packets are retransmitted by sources with minimal delay. End-to-end feedback loops have been added to the network to quickly detect packet collisions. The presence of feedback loops allows for arbitrary traffic without packet loss. Networks are developed in 1-, 2-, 4-, and 8-cascade variants with scaling the number of channels from several hundred to many millions with an assessment of the network speed achieved on permutation traffic. The practical orientation of the proposed networks is system networks with the transmission of routing information in packet headers using control routing information in each cascade. The proposed networks are made in an extended circuit basis, consisting of switches, multiplexers and demultiplexers. The paper presents the characteristics of the constructed networks and gives their comparative assessment. The novelty of the developed networks lies both in the very fact of their construction, and in the structure of the networks used and their characteristics.

direct links, dual switch, packet switch, multiplexers and demultiplexers, multistage switch, conflict-free routing, non-blocking switch, static self-routing, quasi-complete digraph, complexity and speed