Dear All,
We are sharing an updated version of draft-gong-spring-nd-advertise-srv6-locator(revision-04) for your review and feedback. This document proposes a method for SRv6 endpoints(e.g., hosts or CPEs) to advertise their SRv6 locators to a neighboring router using IPv6 Neighbor Discovery (ND) extensions. This approach aims to simplify deployment in controlled scenarios where endpoints do not run traditional routing protocols. This draft was previously presented at IETF 122 in the SPRING WG. Based on the valuable feedback received, we have revised the document with substantial clarifications and enhancements. Key updates in version -04 include: 1. Enhanced motivation and applicability section, clarifying use cases such as SRv6 on hosts in data centers and static CPE deployments. 2. Explicit trust boundary and security guidance, emphasizing that the mechanism is designed for single administrative domains and is NOT RECOMMENDED for untrusted environments. 3. Scalability consideration: Added text suggesting that access routers may aggregate fine-grained locators before advertising to the core. 4. Structural improvements: Reorganized sections for better readability (e.g., separating Motivation and Process). 5. Editorial refinements throughout the text for clarity and alignment with RFC language conventions. Following the suggestion from the meeting, we are also sending this update to the SPRING, RTGWG, and 6MAN mailing lists. We welcome your comments on any aspect of the draft.Thank you for your time and consideration. Best regards, Liyan ----邮件原文----发件人：internet-drafts <[email protected]>收件人：Acee Lindem <[email protected]>,Changwang Lin <[email protected]>,Liyan Gong <[email protected]>抄 送: (无)发送时间：2026-02-25 17:31:28主题：New Version Notification for draft-gong-spring-nd-advertise-srv6-locator-04.txtA new version of Internet-Draftdraft-gong-spring-nd-advertise-srv6-locator-04.txt has been successfullysubmitted by Liyan Gong and posted to theIETF repository.Name: draft-gong-spring-nd-advertise-srv6-locatorRevision: 04Title: Advertise SRv6 Locator Information by IPv6 Neighbor DiscoveryDate: 2026-02-25Group: Individual SubmissionPages: 11URL: https://www.ietf.org/archive/id/draft-gong-spring-nd-advertise-srv6-locator-04.txtStatus: https://datatracker.ietf.org/doc/draft-gong-spring-nd-advertise-srv6-locator/HTML: https://www.ietf.org/archive/id/draft-gong-spring-nd-advertise-srv6-locator-04.htmlHTMLized: https://datatracker.ietf.org/doc/html/draft-gong-spring-nd-advertise-srv6-locatorDiff: https://author-tools.ietf.org/iddiff?url2=draft-gong-spring-nd-advertise-srv6-locator-04Abstract: In an SRv6 network, each SRv6 segment endpoint has at least one SRv6 Locator. Through the SRv6 locator routes, other SRv6 segment nodes can steer traffic to that node. This document describes a method for an SRv6 endpoint (e.g., a host or a customer provider edge (CPE)) to advertise its SRv6 locator to a neighboring SRv6-aware router using extensions to the IPv6 Neighbor Discovery (ND) protocol. This approach eliminates the need to run a full routing protocol stack on simple endpoints, facilitating SRv6 deployment in controlled, trusted domains such as data centers and managed access networks.The IETF SecretariatSubject：New Version Notification for draft-gong-spring-nd-advertise-srv6-locator-04.txtA new version of Internet-Draftdraft-gong-spring-nd-advertise-srv6-locator-04.txt has been successfullysubmitted by Liyan Gong and posted to theIETF repository.Name: draft-gong-spring-nd-advertise-srv6-locatorRevision: 04Title: Advertise SRv6 Locator Information by IPv6 Neighbor DiscoveryDate: 2026-02-25Group: Individual SubmissionPages: 11URL: https://www.ietf.org/archive/id/draft-gong-spring-nd-advertise-srv6-locator-04.txtStatus: https://datatracker.ietf.org/doc/draft-gong-spring-nd-advertise-srv6-locator/HTML: https://www.ietf.org/archive/id/draft-gong-spring-nd-advertise-srv6-locator-04.htmlHTMLized: https://datatracker.ietf.org/doc/html/draft-gong-spring-nd-advertise-srv6-locatorDiff: https://author-tools.ietf.org/iddiff?url2=draft-gong-spring-nd-advertise-srv6-locator-04Abstract: In an SRv6 network, each SRv6 segment endpoint has at least one SRv6 Locator. Through the SRv6 locator routes, other SRv6 segment nodes can steer traffic to that node. This document describes a method for an SRv6 endpoint (e.g., a host or a customer provider edge (CPE)) to advertise its SRv6 locator to a neighboring SRv6-aware router using extensions to the IPv6 Neighbor Discovery (ND) protocol. This approach eliminates the need to run a full routing protocol stack on simple endpoints, facilitating SRv6 deployment in controlled, trusted domains such as data centers and managed access networks.The IETF Secretariat
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