Hello Bo Wang， A SDN controller can use BGP FlowSpec to indicate the headend node to steer corresponding packets to proper SR policy. Besides source and destination IP address, other information such as source port, destination port, protocol etc, can also be specified in the BGP FlowSpec rules.
Best Regards, Zhenqiang Li li_zhenqi...@hotmail.com From: 王博 Date: 2022-07-14 10:39 To: spring@ietf.org Subject: [spring] Segment Routing in Two Dimensional IP Routing Dear SPRING WG, We have submitted a draft “Segment Routing in Two Dimensional IP Routing” to SPRING WG. We are looking for your feedback and comments. URL: https://datatracker.ietf.org/doc/draft-xu-spring-segment-twod-ip-routing/ This draft describes an extension of SR to support TwoD-IP routing (i.e., src-dst routing) which makes forwarding decisions based on both source and destination IP addresses. We have implemented a src-dst routing prototype based on segment routing and deployed it over CERNET (China Education and Research Network). Bo Wang
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