Dear WG, Having reviewed this document, I support its progression move toward.
Last year, CAICT had engaged in the field trail of the END.IL mechanism and followed up with a multi-vendor demonstration at the IETF 125 Hackathon this year. These activities confirmed interoperability and validated the effectiveness of END.IL in multi-layer network. Given its implementation maturity and practical value, I support this draft to move forward. Thanks =============================================================== JUNFENG ZHAO 赵俊峰 光网络技术和应用研究部 中国信息通信研究院（原工业与信息化部电信研究院）技术与标准研究所 Research Institute of Telecommunications Transmission (RITT), China Academy of Information Communications Technology(CAICT), MIIT TEL: 86-18513835246，86-10-62305054 E-mail: [email protected] From: 汪俊芳 Date: 2026-08-21 11:00 To: 王敏学; spring Subject: [spring] Fw: I-D Action: draft-ietf-spring-srv6-inter-layer-programming-03.txt Dear all, From my perspective as a contributor, I would like to thank Minxue and the authors for the updates in revision -03. Based on the multi-vendor interoperability experience, I believe the newly added Operational Considerations section provides valuable guidance for operator deployment. Furthermore, the registration requests for REPLACE-CSID and NEXT-CSID flavors in the IANA section enable End.IL to fully support SRH compression mechanisms, while the additional combinations of two flavors (e.g., PSP & USP, PSP & USD, USP & USD) offer more flexible deployment options. These enhancements are valuable for various inter-layer scenarios where fine-grained packet overhead control is required. I support the current technical direction of the draft. Thanks. JunFang Wang Fiberhome Telecommunication Technologies Co.,LTD Email：[email protected] No.6, Gaoxin Lu, Donghu Gaoxin Industrial Park, Wuhan, Hubei Postcode: 430074 http://www.fiberhome.com/ From: [email protected] Date: 2026-08-18 11:58 To: SPRING WG Subject: [spring] Fw: I-D Action: draft-ietf-spring-srv6-inter-layer-programming-03.txt Dear WG, We are sharing an updated version of draft-ietf-spring-srv6-inter-layer-programming (revision -03) for your review and feedback. This draft describes the SRv6 End.IL behavior, which steers packets to underlay connections to achieve efficient inter-layer coordination. The draft was presented at both the Hackathon and WG session at IETF 125. Based on feedback, we have made the following updates: 1. An Operational Considerations section is added, and the information of implementations and interoperability test among multiple vendors is documented. 2. Two contributors are added based on their contributions to the implementation and interoperability test. 3. In the IANA section, the registration requests for End.IL behavior with different CSID flavors is added. We would appreciate your review and comments on the list. Thank you for your time and consideration. Best regards, Minxue (on behalf of coauthors) Original From:[email protected]<[email protected]> To:[email protected]<[email protected]>; Cc:[email protected]; Date:2026-08-11 16:17:09 Subject:[spring] I-D Action: draft-ietf-spring-srv6-inter-layer-programming-03.txt Internet-Draft draft-ietf-spring-srv6-inter-layer-programming-03.txt is now available. It is a work item of the Source Packet Routing in Networking (SPRING) WG of the IETF. Title: SRv6 for Inter-Layer Network Programming Authors: Liuyan Han Jie Dong Minxue Wang Ran Chen Zongpeng Du Name: draft-ietf-spring-srv6-inter-layer-programming-03.txt Pages: 16 Dates: 2026-08-11 Abstract: The Segment Routing over IPv6 (SRv6) Network Programming framework enables a network operator or an application to specify a packet processing program by encoding a sequence of instructions in the IPv6 packet header. Following the SRv6 Network Programming concept, this document defines SRv6 based mechanisms for inter-layer network programming, which can help to integrate the packet network layer with its underlying layers efficiently. For inter-layer path programming, a new SRv6 behavior is defined for steering packets to underlay network connections. The applicability of this new SRv6 behavior in typical scenarios is illustrated. The IETF datatracker status page for this Internet-Draft is: https://datatracker.ietf.org/doc/draft-ietf-spring-srv6-inter-layer-programming/ There is also an HTMLized version available at: https://datatracker.ietf.org/doc/html/draft-ietf-spring-srv6-inter-layer-programming-03 A diff from the previous version is available at: https://author-tools.ietf.org/iddiff?url2=draft-ietf-spring-srv6-inter-layer-programming-03 Internet-Drafts are also available by rsync at: rsync.ietf.org::internet-drafts _______________________________________________ spring mailing list -- [email protected] To unsubscribe send an email to [email protected]
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