A routing strategy with adaptive weight between ‘hop’ and ‘bandwidth’

There are three types of traffic in the factory network: Time-Triggered (TT) traffic with strict time stability requirements, Audio-Video-Bridging (AVB) traffic with large bandwidth and bounded latency requirements, and Best-Effort (BE) traffic. Under the general trend of Information Technology (IT) and Operation Technology (OT) integration, these three types of traffic will run in our traditional IT network. For the integration of IT and OT, our lab has built a customized network architecture, which can provide customized services for the above three types of traffic. Faced with the routing requirements of these multiple types of traffic, a single routing strategy can hardly provide good service. This paper introduces the background of the network architecture built by our lab, and proposes a routing strategy based on adaptive weight evaluation of "hops through the switch on the path" and "link bandwidth" for traffic in the factory, which can meet the different needs of different traffic, so that each traffic can be matched to the optimal route.