随着互联网规模扩展和拓扑结构的变化，网络管理面临巨大挑战。分段路由（segment routing, SR）协议，特别是SRv6（segment routing over IPv6），因其高可编程性和可扩展性，成为研究热点。基于SRv6的路径优化控制机制，解决多需求、多场景下特定节点规避与中转问题，以提高网络性能。提出了针对完全部署SRv6网络的路径转移方案，通过分叉路径优化减少路由开销。针对部分部署网络，定义关键路径并设计规避与中转路径转发方案，优化路径转发效率。实验结果表明，完全部署SRv6时，优化方案能有效减小段列表深度，减少路由开销；在部分部署网络中，仅少量SRv6节点即可实现接近全SRv6网络的性能，成功解决特定节点规避与中转问题。研究结果为SRv6在不同网络部署中的应用提供了有效支持。

With the expansion of the Internet scale and changes in its topological structure, network management is facing huge challenges. Segment routing (SR) protocols, especially SRv6 (segment routing over IPv6), have become a research hotspot due to their high programmability and scalability. The path optimization control mechanism based on SRv6 solves the problem of avoiding and relaying specific nodes in multiple demands and scenarios to improve network performance. A path transfer scheme for fully deployed SRv6 networks was proposed, and the routing overhead was reduced through the optimization of forked paths. For some deployment networks, define the critical path and design the avoidance and relay path forwarding scheme to optimize the path forwarding efficiency. The experimental results show that when SRv6 is fully deployed, the optimization scheme can effectively reduce the depth of the segment list and the routing overhead. In some deployment networks, only a small number of SRv6 nodes can achieve performance close to that of a full SRv6 network, successfully solving the problem of evading and relaying specific nodes. The research results provide effective support for the application of SRv6 in different network deployments.