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The Differentiated Reliable Routing Mechanism for 5GB5G

In order to support the 5GB5G network with huge connections, large traffic, and low latency, the evolution of the IP network to the IPv6 network is an inevitable trend. Although IPv6 network has significantly improved network performance, there are still a series of network failures. After the failure occurs, it is necessary for the routing algorithm to create a backup path to ensure the continuous provision of network services. So, the selection of the backup path directly determines the performance of the network service. SRv6 takes advantage of the programmable capability of the IPv6 extension header to implement differentiated reliable routing, satisfies the QoS requirements of different network services, and improves user experience. First, we design the network model for single link failure, define the network service, and design the two-dimensional flow table. Then, the backup path traversal algorithm is designed to obtain the universal set of backup paths in the network, and the optimal backup path for a specific network service is selected through comprehensive evaluation method. Experimental results show that the differentiated reliable routing mechanism proposed in this paper exhibits better performance in terms of bandwidth, delay, jitter and packet loss rate compared with the benchmark mechanism.