Hi Vainshtein, In this draft, what we propose is a protection scheme for egress nodes. The egress nodes are located at the edge of the network, and in most scenarios of the current network, they are within an AS. If we consider the scheme for remote BGP convergence , the delay would be extremely high，and it is nonsense in this scheme. Therefore, we did not extend the BGP protocol.
If you have met the necessary scenario about BGP protocol here, welcome discussion, thank you! =============================================== Tao He Next Generation Internet Research Department Research Institute CHINA UNITED NETWORK COMMUNICATIONS CORPORATION LIMITED Mobile: +86-18618484923 E-mail: [email protected] From: Alexander Vainshtein Date: 2025-07-21 21:37 To: RTGWG Subject: [rtgwg] My question about draft-ietf-rtgwg-srv6-egress-protection-19 【本邮件为外部邮件，请注意核实发件人身份，并谨慎处理邮件内容中的链接及附件】 Hi all, I have asked the following question about the SRv6 Path Egress Protection draft at the RTGWG session in Madrid today: Is the draft applicable to BGP-advertised SRV6 Service SIDs defined in RFC 9252? My guess (FWIW) that this is not so. This guess is based on the fact that service SIDs are advertised by BGP while IGP simply is not aware of them and, therefore, cannot distribute any related information. (Specifically, router P1 in Figure 1 of the draft does not have to be a BGP speaker and therefore would not be aware of these SIDs) . If my guess is correct, then from my POV: The added value of the draft is quite limited The draft should explicitly state to which types of SIDs (mode SIDs? Adj-SIDs) egress protection is provided. Regards, Sasha Disclaimer This e-mail together with any attachments may contain information of Ribbon Communications Inc. and its Affiliates that is confidential and/or proprietary for the sole use of the intended recipient. Any review, disclosure, reliance or distribution by others or forwarding without express permission is strictly prohibited. If you are not the intended recipient, please notify the sender immediately and then delete all copies, including any attachments.
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