流量调度技术是报文在单节点实现确定性转发的基础技术,但是确定性的路径也是保证报文端到端网络确定性的重要因素。无论是基于以太网的TSN还是基于IP的SRv6都建立了显式路径规划技术。该项技术可以基于SDN体系,在数据平面用IS-IS(Intermediate System-to-Intermediate System)、LSP(Path Control and Reservation)等协议执行拓扑发现和路径计算等基础功能,而在SDN的集中管理控制平面管理显式路径,实现与数据平面IS-IS协议的交互。
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