A Service Customized Reliable Routing Mechanism Based on SRv6.

Reliable routing is a classic problem in the field of computer networks. After a network fault occurs, how to choose the recovery path directly determines the performance of network services. This paper introduces service customized techniques into reliable routing. By meeting customized traffic protection requirements, network service quality can be ensured after fault recovery. Topology Independent Loop-free Alternate (TI-LFA) supported by SRv6 is a new reliable routing technology. In this paper, an SRv6-based service customized reliable routing mechanism is designed for the single link failure in the case of P-Q space adjacency in TI-LFA. For traffic with QoS requirements, this paper uses fuzzy theory to make the optimal decision for SRv6 candidate protection schemes. Finally, three representative topologies are selected to build an experimental network supporting SRv6 based on ONOS, Mininet, and the programmable data plane. The results show that when responding to a network service customized request, the recovery path selected by the mechanism proposed in this paper is superior to the comparison mechanism of related QoS indicators.